A plant genus of the family POACEAE that is the source of EDIBLE GRAIN. A hybrid with rye (SECALE CEREALE) is called TRITICALE. The seed is ground into FLOUR and used to make BREAD, and is the source of WHEAT GERM AGGLUTININS.
A thin-walled distention of the alimentary tract protruding just outside the body cavity in the distal end of the neck (esophagus), used for the temporary storage of food and water.
A genus of gram-negative bacteria which are obligately intracellular endosymbionts of APHIDS. The bacteria are found within specialized cells in the aphid body cavity.
Lectins purified from the germinating seeds of common wheat (Triticum vulgare); these bind to certain carbohydrate moieties on cell surface glycoproteins and are used to identify certain cell populations and inhibit or promote some immunological or physiological activities. There are at least two isoforms of this lectin.
A family of RNA plant viruses infecting disparate plant families. They are transmitted by specific aphid vectors. There are three genera: LUTEOVIRUS; Polerovirus; and Enamovirus.
Diseases of plants.
The science, art or practice of cultivating soil, producing crops, and raising livestock.
Allergic reaction to wheat that is triggered by the immune system.
The relationship between two different species of organisms that are interdependent; each gains benefits from the other or a relationship between different species where both of the organisms in question benefit from the presence of the other.
Plant tissue that carries nutrients, especially sucrose, by turgor pressure. Movement is bidirectional, in contrast to XYLEM where it is only upward. Phloem originates and grows outwards from meristematic cells (MERISTEM) in the vascular cambium. P-proteins, a type of LECTINS, are characteristically found in phloem.
PLANTS, or their progeny, whose GENOME has been altered by GENETIC ENGINEERING.
Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which VEGETABLE PROTEINS is available.
Ground up seed of WHEAT.
The functional hereditary units of PLANTS.
Seeds from grasses (POACEAE) which are important in the diet.
The encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high content of concentrated nutrients like starches, proteins, and fats. Rapeseed, cottonseed, and sunflower seed are also produced for the oils (fats) they yield.
A genus of plant viruses that infects both monocotyledonous and dicotyledonous plants. Its organisms are persistently transmitted by aphids, and weeds may provide reservoirs of infection.
A plant genus of the family POACEAE. The EDIBLE GRAIN, barley, is widely used as food.
The immature stage in the life cycle of those orders of insects characterized by gradual metamorphosis, in which the young resemble the imago in general form of body, including compound eyes and external wings; also the 8-legged stage of mites and ticks that follows the first moult.
A plant species of the genus VICIA, family FABACEAE. The edible beans are well known but they cause FAVISM in some individuals with GLUCOSEPHOSPHATE DEHYDROGENASE DEFICIENCY. This plant contains vicine, convicine, Vicia lectins, unknown seed protein, AAP2 transport protein, and Vicia faba DNA-binding protein 1.
Complex nucleoprotein structures which contain the genomic DNA and are part of the CELL NUCLEUS of PLANTS.
The relationship between an invertebrate and another organism (the host), one of which lives at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.
Baked food product made of flour or meal that is moistened, kneaded, and sometimes fermented. A major food since prehistoric times, it has been made in various forms using a variety of ingredients and methods.
The genetic complement of a plant (PLANTS) as represented in its DNA.
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in plants.
A plant genus in the family ROSACEAE, order Rosales, subclass Rosidae. It is best known as a source of edible fruits such as apricot, plum, peach, cherry, and almond.
A hardy grain crop, rye, grown in northern climates. It is the most frequent host to ergot (CLAVICEPS), the toxic fungus. Its hybrid with TRITICUM is TRITICALE, another grain.
Use of naturally-occuring or genetically-engineered organisms to reduce or eliminate populations of pests.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
A large family of narrow-leaved herbaceous grasses of the order Cyperales, subclass Commelinidae, class Liliopsida (monocotyledons). Food grains (EDIBLE GRAIN) come from members of this family. RHINITIS, ALLERGIC, SEASONAL can be induced by POLLEN of many of the grasses.
A variable annual leguminous vine (Pisum sativum) that is cultivated for its rounded smooth or wrinkled edible protein-rich seeds, the seed of the pea, and the immature pods with their included seeds. (From Webster's New Collegiate Dictionary, 1973)
The act of feeding on plants by animals.
The capacity of an organism to defend itself against pathological processes or the agents of those processes. This most often involves innate immunity whereby the organism responds to pathogens in a generic way. The term disease resistance is used most frequently when referring to plants.
Multicellular, eukaryotic life forms of kingdom Plantae (sensu lato), comprising the VIRIDIPLANTAE; RHODOPHYTA; and GLAUCOPHYTA; all of which acquired chloroplasts by direct endosymbiosis of CYANOBACTERIA. They are characterized by a mainly photosynthetic mode of nutrition; essentially unlimited growth at localized regions of cell divisions (MERISTEMS); cellulose within cells providing rigidity; the absence of organs of locomotion; absence of nervous and sensory systems; and an alternation of haploid and diploid generations.
Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed)
The usually underground portions of a plant that serve as support, store food, and through which water and mineral nutrients enter the plant. (From American Heritage Dictionary, 1982; Concise Dictionary of Biology, 1990)
Any of numerous winged hymenopterous insects of social as well as solitary habits and having formidable stings.
INSECTS of the order Coleoptera, containing over 350,000 species in 150 families. They possess hard bodies and their mouthparts are adapted for chewing.
Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop.
Annual cereal grass of the family POACEAE and its edible starchy grain, rice, which is the staple food of roughly one-half of the world's population.
Deoxyribonucleic acid that makes up the genetic material of plants.
Food derived from genetically modified organisms (ORGANISMS, GENETICALLY MODIFIED).
The chromosomal constitution of a cell containing multiples of the normal number of CHROMOSOMES; includes triploidy (symbol: 3N), tetraploidy (symbol: 4N), etc.
A plant genus of the family MALVACEAE. It is the source of COTTON FIBER; COTTONSEED OIL, which is used for cooking, and GOSSYPOL. The economically important cotton crop is a major user of agricultural PESTICIDES.
The relationships of groups of organisms as reflected by their genetic makeup.
Prolamins in the endosperm of SEEDS from the Triticeae tribe which includes species of WHEAT; BARLEY; and RYE.
A plant species of the genus SOLANUM, family SOLANACEAE. The starchy roots are used as food. SOLANINE is found in green parts.
A plant species of the family BRASSICACEAE best known for the edible roots.
Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.
The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.
A large genus of plant viruses of the family POTYVIRIDAE which infect mainly plants of the Solanaceae. Transmission is primarily by aphids in a non-persistent manner. The type species is potato virus Y.
Reproduction without fusion of two types of cells, mostly found in ALGAE; FUNGI; and PLANTS. Asexual reproduction occurs in several ways, such as budding, fission, or splitting from "parent" cells. Only few groups of ANIMALS reproduce asexually or unisexually (PARTHENOGENESIS).
A plant species of the family POACEAE. It is a tall grass grown for its EDIBLE GRAIN, corn, used as food and animal FODDER.
The gourd plant family of the order Violales, subclass Dilleniidae, class Magnoliopsida. It is sometimes placed in its own order, Cucurbitales. 'Melon' generally refers to CUCUMIS; CITRULLUS; or MOMORDICA.
A phylum of fungi which have cross-walls or septa in the mycelium. The perfect state is characterized by the formation of a saclike cell (ascus) containing ascospores. Most pathogenic fungi with a known perfect state belong to this phylum.
A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.
A species of the Beta genus. Cultivars are used as a source of beets (root) or chard (leaves).
A plant growing in a location where it is not wanted, often competing with cultivated plants.
An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
The routing of water to open or closed areas where it is used for agricultural purposes.
A plant genus of the family Cruciferae. It contains many species and cultivars used as food including cabbage, cauliflower, broccoli, Brussel sprouts, kale, collard greens, MUSTARD PLANT; (B. alba, B. junica, and B. nigra), turnips (BRASSICA NAPUS) and rapeseed (BRASSICA RAPA).
The process of laying or shedding fully developed eggs (OVA) from the female body. The term is usually used for certain INSECTS or FISHES with an organ called ovipositor where eggs are stored or deposited before expulsion from the body.
Prolonged dry periods in natural climate cycle. They are slow-onset phenomena caused by rainfall deficit combined with other predisposing factors.
Proteins found in any species of insect.
A large order of insects characterized by having the mouth parts adapted to piercing or sucking. It is comprised of four suborders: HETEROPTERA, Auchenorrhyncha, Sternorrhyncha, and Coleorrhyncha.
The reduction or regulation of the population of noxious, destructive, or dangerous insects through chemical, biological, or other means.
Insects of the family Formicidae, very common and widespread, probably the most successful of all the insect groups. All ants are social insects, and most colonies contain three castes, queens, males, and workers. Their habits are often very elaborate and a great many studies have been made of ant behavior. Ants produce a number of secretions that function in offense, defense, and communication. (From Borror, et al., An Introduction to the Study of Insects, 4th ed, p676)
A plant genus in the family POACEAE. Brachypodium distachyon is a model species for functional genomics studies.
Pesticides used to destroy unwanted vegetation, especially various types of weeds, grasses (POACEAE), and woody plants. Some plants develop HERBICIDE RESISTANCE.
Simple protein, one of the prolamines, derived from the gluten of wheat, rye, etc. May be separated into 4 discrete electrophoretic fractions. It is the toxic factor associated with CELIAC DISEASE.
A plant genus of the family ROSACEAE known for the edible fruit.
Substituted thioglucosides. They are found in rapeseed (Brassica campestris) products and related cruciferae. They are metabolized to a variety of toxic products which are most likely the cause of hepatocytic necrosis in animals and humans.
The remnants of plant cell walls that are resistant to digestion by the alimentary enzymes of man. It comprises various polysaccharides and lignins.
An annual legume. The SEEDS of this plant are edible and used to produce a variety of SOY FOODS.
Parts of plants that usually grow vertically upwards towards the light and support the leaves, buds, and reproductive structures. (From Concise Dictionary of Biology, 1990)
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
Partial cDNA (DNA, COMPLEMENTARY) sequences that are unique to the cDNAs from which they were derived.
Instinctual behavior pattern in which food is obtained by killing and consuming other species.
A plant genus of the family ARACEAE. Members contain acrid calcium oxalate and LECTINS. Polynesians prepare the root into poi. Common names of Taro and Coco Yam (Cocoyam) may be confused with other ARACEAE; XANTHOSOMA; or with common yam (DIOSCOREA).
A genus of PLANT VIRUSES, in the family CAULIMOVIRIDAE, that are transmitted by APHIDS in a semipersistent manner. Aphid-borne transmission of some caulimoviruses requires certain virus-coded proteins termed transmission factors.
Any method used for determining the location of and relative distances between genes on a chromosome.
A plant species of the family SOLANACEAE, native of South America, widely cultivated for their edible, fleshy, usually red fruit.
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
An order of fungi comprising mostly insect pathogens, though some infect mammals including humans. Strict host specificity make these fungi a focus of many biological control studies.
The large family of plants characterized by pods. Some are edible and some cause LATHYRISM or FAVISM and other forms of poisoning. Other species yield useful materials like gums from ACACIA and various LECTINS like PHYTOHEMAGGLUTININS from PHASEOLUS. Many of them harbor NITROGEN FIXATION bacteria on their roots. Many but not all species of "beans" belong to this family.
Cultivated plants or agricultural produce such as grain, vegetables, or fruit. (From American Heritage Dictionary, 1982)
The sequence of transfers of matter and energy from organism to organism in the form of FOOD. Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant. PLANTS, which convert SOLAR ENERGY to food by PHOTOSYNTHESIS, are the primary food source. In a predator chain, a plant-eating animal is eaten by a larger animal. In a parasite chain, a smaller organism consumes part of a larger host and may itself be parasitized by smaller organisms. In a saprophytic chain, microorganisms live on dead organic matter.
Diminished or failed response of PLANTS to HERBICIDES.
A mitosporic Hypocreales fungal genus, various species of which are important parasitic pathogens of plants and a variety of vertebrates. Teleomorphs include GIBBERELLA.
Genetic loci associated with a QUANTITATIVE TRAIT.
The genetic complement of an insect (INSECTS) as represented in its DNA.
A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in the natural environment (soil, water, and plant surfaces) or as an opportunistic human pathogen.
Very young plant after GERMINATION of SEEDS.
The total process by which organisms produce offspring. (Stedman, 25th ed)
Genotypic differences observed among individuals in a population.
Foodstuff used especially for domestic and laboratory animals, or livestock.
A phylum of fungi that produce their sexual spores (basidiospores) on the outside of the basidium. It includes forms commonly known as mushrooms, boletes, puffballs, earthstars, stinkhorns, bird's-nest fungi, jelly fungi, bracket or shelf fungi, and rust and smut fungi.
An extensive order of highly specialized insects including bees, wasps, and ants.
Hydrocarbon-rich byproducts from the non-fossilized BIOMASS that are combusted to generate energy as opposed to fossilized hydrocarbon deposits (FOSSIL FUELS).
The reproductive organs of plants.
The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.
Ribonucleic acid in plants having regulatory and catalytic roles as well as involvement in protein synthesis.
Insects that transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Eighteen-carbon cyclopentyl polyunsaturated fatty acids derived from ALPHA-LINOLENIC ACID via an oxidative pathway analogous to the EICOSANOIDS in animals. Biosynthesis is inhibited by SALICYLATES. A key member, jasmonic acid of PLANTS, plays a similar role to ARACHIDONIC ACID in animals.
A variety of simple repeat sequences that are distributed throughout the GENOME. They are characterized by a short repeat unit of 2-8 basepairs that is repeated up to 100 times. They are also known as short tandem repeats (STRs).
The class Insecta, in the phylum ARTHROPODA, whose members are characterized by division into three parts: head, thorax, and abdomen. They are the dominant group of animals on earth; several hundred thousand different kinds having been described. Three orders, HEMIPTERA; DIPTERA; and SIPHONAPTERA; are of medical interest in that they cause disease in humans and animals. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p1)
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
A plant genus of the family BRASSICACEAE that contains ARABIDOPSIS PROTEINS and MADS DOMAIN PROTEINS. The species A. thaliana is used for experiments in classical plant genetics as well as molecular genetic studies in plant physiology, biochemistry, and development.
A genus in the family NANOVIRIDAE infecting bananas. The type species is Banana bunchy top virus.
The properties of a pathogen that makes it capable of infecting one or more specific hosts. The pathogen can include PARASITES as well as VIRUSES; BACTERIA; FUNGI; or PLANTS.
A group of alicyclic hydrocarbons with the general formula R-C5H9.
A plant genus of the family POACEAE. The grain is used for FOOD and for ANIMAL FEED. This should not be confused with KAFFIR LIME or with KEFIR milk product.
Toxic compounds produced by FUNGI.
A phenotypically recognizable genetic trait which can be used to identify a genetic locus, a linkage group, or a recombination event.
The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.
A plant species cultivated for the seed used as animal feed and as a source of canola cooking oil.
The production of offspring by selective mating or HYBRIDIZATION, GENETIC in animals or plants.
The interactions between a host and a pathogen, usually resulting in disease.
Organisms, biological agents, or biologically-derived agents used strategically for their positive or adverse effect on the physiology and/or reproductive health of other organisms.
A plant genus of the family SOLANACEAE. Members contain NICOTINE and other biologically active chemicals; its dried leaves are used for SMOKING.
Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.
Chemical substances, excreted by an organism into the environment, that elicit behavioral or physiological responses from other organisms of the same species. Perception of these chemical signals may be olfactory or by contact.
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
Chemicals that kill or inhibit the growth of fungi in agricultural applications, on wood, plastics, or other materials, in swimming pools, etc.
The prevention of growth and or spread of unwanted plants.
The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.
A plant genus of the family POACEAE widely cultivated in the tropics for the sweet cane that is processed into sugar.
The arrangement of two or more amino acid or base sequences from an organism or organisms in such a way as to align areas of the sequences sharing common properties. The degree of relatedness or homology between the sequences is predicted computationally or statistically based on weights assigned to the elements aligned between the sequences. This in turn can serve as a potential indicator of the genetic relatedness between the organisms.
The immediate physical zone surrounding plant roots that include the plant roots. It is an area of intense and complex biological activity involving plants, microorganisms, other soil organisms, and the soil.
Ongoing collection, analysis, and interpretation of ecological data that is used to assess changes in the components, processes, and overall condition and functioning of an ECOSYSTEM.
A plant genus of the family POACEAE. The seed is one of the EDIBLE GRAINS used in millet cereals and in feed for birds and livestock (ANIMAL FEED). It contains diosgenin (SAPONINS).
Activities involved in ensuring the safety of FOOD including avoidance of bacterial and other contamination.
Pesticides designed to control insects that are harmful to man. The insects may be directly harmful, as those acting as disease vectors, or indirectly harmful, as destroyers of crops, food products, or textile fabrics.
The development by insects of resistance to insecticides.
The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS.
A plant species of the family FABACEAE used to study GENETICS because it is DIPLOID, self fertile, has a small genome, and short generation time.
Deliberate breeding of two different individuals that results in offspring that carry part of the genetic material of each parent. The parent organisms must be genetically compatible and may be from different varieties or closely related species.
A family of RNA plant viruses with flexuous, filamentous particles and consisting of six genera: POTYVIRUS; Ipomovirus; Macluravirus; Rymovirus; Tritimovirus; and Bymovirus. All members of the family form cytoplasmic cylindrical inclusion bodies during infection.
The study of the origin, structure, development, growth, function, genetics, and reproduction of plants.
A plant genus of the family FABACEAE that is widely used as ground cover and forage and known for the edible beans, VICIA FABA.
Number of individuals in a population relative to space.
An order of the class Insecta. Wings, when present, number two and distinguish Diptera from other so-called flies, while the halteres, or reduced hindwings, separate Diptera from other insects with one pair of wings. The order includes the families Calliphoridae, Oestridae, Phoridae, SARCOPHAGIDAE, Scatophagidae, Sciaridae, SIMULIIDAE, Tabanidae, Therevidae, Trypetidae, CERATOPOGONIDAE; CHIRONOMIDAE; CULICIDAE; DROSOPHILIDAE; GLOSSINIDAE; MUSCIDAE; TEPHRITIDAE; and PSYCHODIDAE. The larval form of Diptera species are called maggots (see LARVA).
Any of a group of polysaccharides of the general formula (C6-H10-O5)n, composed of a long-chain polymer of glucose in the form of amylose and amylopectin. It is the chief storage form of energy reserve (carbohydrates) in plants.
The process of breakdown of food for metabolism and use by the body.
The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells.
The capacity to conceive or to induce conception. It may refer to either the male or female.
The transfer of POLLEN grains (male gametes) to the plant ovule (female gamete).
A plant species of the family CUCURBITACEAE, order Violales, subclass Dilleniidae known for the melon fruits with reticulated (net) surface including cantaloupes, honeydew, casaba, and Persian melons.
The genetic process of crossbreeding between genetically dissimilar parents to produce a hybrid.
Viruses parasitic on plants higher than bacteria.
A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies.
The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide using energy obtained from light rather than from the oxidation of chemical compounds. Photosynthesis comprises two separate processes: the light reactions and the dark reactions. In higher plants; GREEN ALGAE; and CYANOBACTERIA; NADPH and ATP formed by the light reactions drive the dark reactions which result in the fixation of carbon dioxide. (from Oxford Dictionary of Biochemistry and Molecular Biology, 2001)
A plant genus of the family SOLANACEAE. The hot peppers yield CAPSAICIN, which activates VANILLOID RECEPTORS. Several varieties have sweet or pungent edible fruits that are used as vegetables when fresh and spices when the pods are dried.
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
An order of very small, fringed-wing INSECTS including many agricultural pests.
The initial stages of the growth of SEEDS into a SEEDLINGS. The embryonic shoot (plumule) and embryonic PLANT ROOTS (radicle) emerge and grow upwards and downwards respectively. Food reserves for germination come from endosperm tissue within the seed and/or from the seed leaves (COTYLEDON). (Concise Dictionary of Biology, 1990)
The change in gene frequency in a population due to migration of gametes or individuals (ANIMAL MIGRATION) across population barriers. In contrast, in GENETIC DRIFT the cause of gene frequency changes are not a result of population or gamete movement.
The variety of all native living organisms and their various forms and interrelationships.
A group of seed storage proteins restricted to the POACEAE family. They are rich in GLUTAMINE and PROLINE.
A plant genus of the family Musaceae, order Zingiberales, subclass Zingiberidae, class Liliopsida.
A plant genus of the family FABACEAE known for the edible beans.
An indication of the contribution of a food to the nutrient content of the diet. This value depends on the quantity of a food which is digested and absorbed and the amounts of the essential nutrients (protein, fat, carbohydrate, minerals, vitamins) which it contains. This value can be affected by soil and growing conditions, handling and storage, and processing.
The production and movement of food items from point of origin to use or consumption.
The continuous sequence of changes undergone by living organisms during the post-embryonic developmental process, such as metamorphosis in insects and amphibians. This includes the developmental stages of apicomplexans such as the malarial parasite, PLASMODIUM FALCIPARUM.
A plant genus of the family EUPHORBIACEAE that is perennial with conspicuous, almost palmate leaves like those of RICINUS but more deeply parted into five to nine lobes. It is a source of a starch after removal of the cyanogenic glucosides. The common name of Arrowroot is also used with Maranta (MARANTACEAE). The common name of yuca is also used for YUCCA.
The presence of two or more genetic loci on the same chromosome. Extensions of this original definition refer to the similarity in content and organization between chromosomes, of different species for example.
The science dealing with the earth and its life, especially the description of land, sea, and air and the distribution of plant and animal life, including humanity and human industries with reference to the mutual relations of these elements. (From Webster, 3d ed)
The unfavorable effect of environmental factors (stressors) on the physiological functions of an organism. Prolonged unresolved physiological stress can affect HOMEOSTASIS of the organism, and may lead to damaging or pathological conditions.
A plant genus of the family FABACEAE. It is distinct from Sweet Clover (MELILOTUS), from Bush Clover (LESPEDEZA), and from Red Clover (TRIFOLIUM).
A plant species of the family FABACEAE that yields edible seeds, the familiar peanuts, which contain protein, oil and lectins.
Substances released by PLANTS such as PLANT GUMS and PLANT RESINS.
Any of the various plants of the genus Lactuca, especially L. sativa, cultivated for its edible leaves. (From American Heritage Dictionary, 2d ed)
A plant genus of the family POACEAE that contains allergen Dac g I.
Viruses which produce a mottled appearance of the leaves of plants.
The pattern of GENE EXPRESSION at the level of genetic transcription in a specific organism or under specific circumstances in specific cells.
The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.
A compound obtained from the bark of the white willow and wintergreen leaves. It has bacteriostatic, fungicidal, and keratolytic actions.
Body of knowledge related to the use of organisms, cells or cell-derived constituents for the purpose of developing products which are technically, scientifically and clinically useful. Alteration of biologic function at the molecular level (i.e., GENETIC ENGINEERING) is a central focus; laboratory methods used include TRANSFECTION and CLONING technologies, sequence and structure analysis algorithms, computer databases, and gene and protein structure function analysis and prediction.
The protection, preservation, restoration, and rational use of all resources in the total environment.
An order of fungi in the phylum ASCOMYCOTA that includes a number of species which are parasitic on higher plants, insects, or fungi. Other species are saprotrophic.
The blood/lymphlike nutrient fluid of some invertebrates.
Any of several BRASSICA species that are commonly called mustard. Brassica alba is white mustard, B. juncea is brown or Chinese mustard, and B. nigra is black, brown, or red mustard. The plant is grown both for mustard seed from which oil is extracted or used as SPICES, and for its greens used as VEGETABLES or ANIMAL FEED. There is no relationship to MUSTARD COMPOUNDS.
The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.
A plant genus of the family CUCURBITACEAE, order Violales, subclass Dilleniidae, which includes pumpkin, gourd and squash.
A plant genus of the FABACEAE family known for the seeds used as food.
A group of the proteobacteria comprised of facultatively anaerobic and fermentative gram-negative bacteria.
The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms.
A genus of ascomycetous fungi of the family Hypocreaceae, order Hypocreales including several pathogens of grains and cereals. It is also the source of plant growth regulators such as gibberellin and gibberellic acid.
The scientific study of past societies through artifacts, fossils, etc.
Nutritive tissue of the seeds of flowering plants that surrounds the EMBRYOS. It is produced by a parallel process of fertilization in which a second male gamete from the pollen grain fuses with two female nuclei within the embryo sac. The endosperm varies in ploidy and contains reserves of starch, oils, and proteins, making it an important source of human nutrition.
The ability of organisms to sense and adapt to high concentrations of salt in their growth environment.
A genus of plant viruses of the family BROMOVIRIDAE, which infect cucurbits and solanaceous plants. Transmission occurs via aphids in a non-persistent manner, and also via seeds. The type species Cucumber mosaic virus, a CUCUMOVIRUS, should not be confused with Cucumber green mottle mosaic virus, a TOBAMOVIRUS.
Protein or glycoprotein substances of plant origin that bind to sugar moieties in cell walls or membranes. Some carbohydrate-metabolizing proteins (ENZYMES) from PLANTS also bind to carbohydrates, however they are not considered lectins. Many plant lectins change the physiology of the membrane of BLOOD CELLS to cause agglutination, mitosis, or other biochemical changes. They may play a role in plant defense mechanisms.
A family (Aphididae) of small insects, in the suborder Sternorrhyncha, that suck the juices of plants. Important genera include Schizaphis and Myzus. The latter is known to carry more than 100 virus diseases between plants.
The degree of similarity between sequences of amino acids. This information is useful for the analyzing genetic relatedness of proteins and species.
The functional hereditary units of INSECTS.
Any aspect of the operations in the preparation, processing, transport, storage, packaging, wrapping, exposure for sale, service, or delivery of food.
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98.
... , common names corn leaf aphid and corn aphid, is an insect, and a pest of maize and other crops. It has a ... In addition to feeding on maize, R. maidis infests a variety of cultivated grasses, including wheat, barley, oat, rye, sorghum ... Aphids on the world's crops : an identification and information guide (2nd ed.). Chichester, West Sussex, England: Wiley. ISBN ... The aphid population reaches a maximum late in the summer. Dense populations of R. maidis on maize (Zea mays) can cause direct ...
... lowering the quality of the crop. It can also harbor pests such as the Russian wheat aphid (Diuraphis noxia) and pathogenic ... The familiar common wheat (Triticum aestivum) arose when cultivated emmer wheat hybridized with Aegilops tauschii about 8,000 ... A. cylindrica, which is commonly known as jointed goatgrass, infests wheat fields, where it outcompetes wheat plants, reducing ... During the Mesolithic era, nomadic peoples found goatgrasses (Aegilops) growing wild, along with wild wheats and barleys, and ...
R. rufiabdominale is considered one of the most abundant aphids affecting wheat and grain crops in the United States. In both ... "Rice Root Aphid". www.padil.gov.au. Retrieved 14 July 2020. "AphID - Antennal tubercle". aphid.aphidnet.org. Retrieved 14 July ... Aphids as Crop Pests. CABI. p. 18. ISBN 978-1-84593-202-2. Entomology Today (2020-07-24). "Rice Root Aphid: An Insect Surprise ... Root aphids are known to appear in greater abundance when reared in sandy soil. Disruption of requisites through crop rotation ...
The potyviruses responsible for MLN are transmitted by several species of aphids and, in the case of wheat streak mosaic virus ... wheat curl mite. Disease is associated with the presence of maize thrips and the growth of several crops of maize annually. In ... Plantwise and partners also recommend rotating with non-cereal crops (e.g. beans, faba bean, chickpea etc.) for at least 2-3 ... wheat streak mosaic virus (WSMV), sugarcane mosaic virus (SCMV), Johnsongrass mosaic virus (JGMV) or others. Spread of the ...
Crops which support aphid populations include wheat, sorghum, sweet corn, alfalfa, soybeans, peas, beans, cotton, potatoes, ... It has been found experimentally that interplanting a crop susceptible to aphid attack with a flowering plant such as the ... The presence of this weed, in close proximity to the crop, resulted in more beetle larvae on the crop than was the case when ... brassicacious crops, tomatoes, asparagus and apples. Besides aphids, they include in their diet adelgids, mites, insect eggs ( ...
Cereals that are used by this aphid as their secondary hosts include wheat, barley, oats and rye. Research in New Zealand ... dispersing to grasses and cereal crops in midsummer. On its primary host, it is less harmful than is the rose aphid ( ... Metopolophium dirhodum, the rose-grain aphid or rose-grass aphid, is a species of sap-sucking insect in the family Aphididae ... possibly because the lower leaves of wheat, on which the aphids tended to congregate, became senescent early in the year, ...
Sub soil spray increases the growth very fast and acts as pesticide on rice, wheat and vegetables and all crops. SubSoil spray ... Infestation of mealy bug, aphids, defoliating caterpillars, stem borer were eradicated. The subsoil can be sprayed, composition ... The dry soil is filtered and made into a consistent liquid and is sprinkled on the stem, leaves on all crops, 2 times a week. ... In 2003, he piloted his SM technique on one-acre land on paddy and wheat, and reaped double the normal harvest. His soil ...
There are two main sources by which a cereal crop might be infected 1. By non-migrant wingless aphids already present in the ... It affects the economically important crop species barley, oats, wheat, maize, triticale and rice. Barley yellow dwarf virus ( ... The virus is transmitted from the phloem when the aphid feeds. When the aphid feeds, virions go to the aphid's hind gut, the ... bird cherry-oat aphid, Rhopalosiphum padi, grain aphid, S. avenae, and others including rose-grain aphid, Metopolophium ...
Due to an aphid invasion which affected hops crops in Europe, hops from the Puget Sound area began to command high prices. Hops ... Throughout the 1860s and 70's, grain and forage crops such as wheat, barley, oats, hay, and timothy accounted for much of the ... Hops production in the White River valley came to an end soon after its own invasion of aphids in 1891. Kent was officially ...
The virus, like other members of its genus, is transmitted by aphids. Identified vectors include Rhopalosiphum padi L. and R. ... Aphididae). The virus has been identified in crop plants in Japan, China, and Italy. Native host plants include Italian ... Wheat yellow leaf virus (WYLV) is a wheat (Triticum spp. L.), barley (Hordeum vulgare L.), rye (Secale cereale M.Bieb.), and ... ISBN 978-1-56022-943-8. ICTVdB - The Universal Virus Database: Wheat yellow leaf virus Family Groups - The Baltimore Method v t ...
Shiv Malik (27 May 2012). "Anti-GM protesters kept from tearing up wheat crop by police". The Guardian. (19 July 2014) GM Crop ... In 2012 Rothamsted started testing genetically modified wheat which had been modified to produce an aphid alarm pheromone ... Lynas, M. (2012). "Rothamsted's aphid-resistant wheat - a turning point for GMOs?". Agriculture & Food Security. 1: 17. doi: ... Cropping carbon: optimising carbon capture by grasslands and perennial energy crops, such as willow. Designing seeds: improved ...
Painter helped breed wheat cultivars that were resistant to Hessian fly, stem borers, and aphids. Painter's technique was to ... His landmark text on plant resistance to insects was Insect Resistance in Crop Plants (1951). In this book he identified three ... He outlined these ideas in the landmark textbook Insect Resistance in Crop Plants (1951), in which he identified three distinct ... and he pursued the idea of incorporating traits that increased host plant resistance to pest attack in the breeding of crop ...
The main crops are wheat, barley and potatoes. Sheep, horses and pigs are also raised in the village. Wildlife found in the ... organophosphate and carbamate compounds designed to clear crops of aphids. A hotel called Moor Lodge Hotel stood on Moor Lane ... In July 1977 more than fifty children from the junior school had to go to Lincoln County Hospital after a crop spraying ... "AERIAL CROP SPRAYING: BRANSTON INCIDENT". Hansard. House of Lords debates. 386: 612-4. 22 July 1977. Retrieved 23 November 2013 ...
The Russian wheat aphid (Diuraphis noxia) is an aphid that can cause significant losses in cereal crops. The species was ... Aphid infestation on wheat also affects the flour that is made from infested wheat plants. Aphid feeding in wheat results in ... The species was probably transmitted through wheat imports. Russian wheat aphids are one of the most significant pests on wheat ... Lists general information and resources for Russian Wheat Aphid. Russian Wheat Aphid: An introduced pest of small grains in the ...
The biggest crops were maize, squash and wheat. The men were the primary hunters, they would hunt waterfowl, rabbits, bighorn ... When Aphids came and swarmed the cane plants, they would leave small drops of nectar where they punctured the cane stalk. ...
Through somatic fusion, the crop potato plant Solanum tuberosum - the yield of which is severely reduced by a viral disease ... between wheat Triticum and rye Secale to produce Triticale). Uses of somatic fusion include making potato plants resistant to ... transmitted on by the aphid vector - is fused with the wild, non-tuber-bearing potato Solanum brevidens, which is resistant to ... Sink, K. C.; Jain, R. K.; Chowdhury, J. B. (1992). "Somatic Cell Hybridization". Distant Hybridization of Crop Plants. ...
... as well as against wheat and cabbage aphids.[citation needed] Like other organophosphates, the profenofos mechanism of action ... Profenofos can be used on a variety of crops including cotton and vegetables such as maize, potato, soybean, and sugar beet. In ...
... the Indian government revalidated 10 GM-based food crops and allowed field trials of GM food crops, including wheat, rice and ... to conduct an experimental trial wheat genetically modified to repel aphids. The researchers, led by John Pickett, wrote a ... crop-to-crop, crop-to-weedy, and crop-to-wild. In crop-to-crop, genetic information from a genetically modified crop is ... and crop-to-wild indicates transfer from a genetically modified crop to a wild, undomesticated plant and/or crop. There are ...
This is normally given after cultivation of row crops (e.g. Potato), wheat or corn. One big problem for the chamomile following ... Aphids are a big threat for the chamomile production as they do not only lead to slower growth but also to an attraction of ... In other crops in the crop rotation e.g. before chamomile, fertilization with organic matter is highly recommended. Chamomile ... There exist three main cultivation techniques: seeding it as an annual crop in autumn, seeding it as an annual crop in spring ...
Maize (Zea mays) is a major cereal crop; it is third behind rice and wheat in production. An average of 380 million tons are ... The vector for MDMV transmission is aphids. There are 15 aphid species that can non-persistently transmit MDMV. The aphids ... After acquiring MDMV an aphid is able to transmit the virus within 15-30 minutes. Aphids do not retain MDMV after molting. The ... Symptoms appear six weeks after aphids feed and transmit the virus. The aphid acquires the virus within seconds of feeding on ...
She continued her work for USDA, specializing in the improvement of cereal crops and the control of their diseases. Now as ... Hurd-Karrer, Annie M. (15 December 1933). "Inhibition of Selenium Injury to Wheat Plants by Sulfur". Science. 78 (2033): 560. ... Hurd-Karrer, Annie M.; Poos, F. W. (11 September 1936). "Toxicity of Selenium-Containing Plants to Aphids". Science. 84 (2176 ... Hurd-Karrer, Annie M. (1940). Comparative Susceptibility of Crop Plants to Sodium Chlorate Injury. Technical Bulletin. 648. ...
2007). Aphids as crop pests. doi:10.1079/9780851998190.0000. ISBN 978-0-85199-819-0.[page needed] Leather, S. R; Walters, K. F ... wheat and other Gramineae plant species. It is also commonly found in maize growing regions. Bird cherry-oat aphid can vector a ... Bird cherry-oat aphid (Rhopalosiphum padi) is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug ... It is considered a major pest in cereal crops, especially in temperate regions, as well as other hosts in parts of Northern ...
... the Russian wheat aphid (Diuraphis noxia) and the silverleaf whitefly (Bemisia argentifolii). Among mites, susceptible species ... vegetable and cole crops, cotton, maize, rice and plantation crops. It has also been found to reduce the development and spread ...
It is a privately owned working farm supporting grazing livestock, cherry orchards, and arable farming of crops like wheat. The ... raised ridges in fields to encourage aphid-consuming carabids) and leaving crops to overwinter in fields which to benefit ...
... where it will feed on over 400 types of crop plant from peach trees to wheat to lettuce. These insects appear as small oval ... Nymphs are wingless, and being light green in color, are often mistaken for aphids. However, lygus nymphs have harder ... The western tarnished plant bug (Lygus hesperus) is a very serious pest of cotton, strawberries, and seed crops such as alfalfa ... feeds on over half of all commercially grown crop plants, but favors cotton, alfalfa, beans, stone fruits, and conifer ...
A wide range of yield losses due to climate change impacts on wheat, rice, and maize crops in SA is observed. Studies on the ... On the opposite end of the spectrum, drought conditions favour different kinds of pests like aphids, whiteflies and locusts. ... Global warming could lead to an increase in pest insect populations, harming yields of staple crops like wheat, soybeans, and ... According to this 2019 report, projections indicate that yields of non-irrigated crops like wheat, corn and sugar beet would ...
Potatoes are sensitive to soil water deficits compared to other crops such as wheat, and need frequent irrigation, especially ... Aphids which act as vectors for many potato viruses and will also be able to spread under increased temperatures. Several ... These changes in crop yields are predicted to cause shifts in the areas in which potato crops can be viably produced. In some ... Potato production must be adapted to climate change to avoid reductions in crop yields. Potato plants and potato crop yields ...
Press Enterprise published a feature article on Gill and his work on citrus-hungry aphids that caused the loss of citrus crops ... This wheat malady devastated farmers in Blythe, CA that resulted in multimillion dollars of loss to the US economy. The State ... County agriculture officials hunt for citrus-hungry aphids, The Press Enterprise Newspaper, February 4, 1993 The Use of ...
Crop Protection. 42: 338-344. doi:10.1016/j.cropro.2012.06.009. ISSN 0261-2194. "Small Grain Wheat Diseases - Powdery Mildew". ... Aphids are often an indicator of other potential plant problems. In an agricultural setting, the pathogen can be controlled ... Aphids penetrate plant surfaces where they often reside and provide a host of potential inoculants through physical, digestive ... Typically woolly aphids in sub temperate climates precede and are an indicator of various infections, including Powdery mildew ...
It is of uncertain origin[1]:160 and widely cultivated as a crop for human consumption. It is also used as a cover crop, the ... Gulban is made of peeled, half beans collected and well cooked with other grains such as wheat, peas and chickpeas. This is ... Broad bean plants are highly susceptible to early summer infestations of the black bean aphid, which can cover large sections ... They are still often grown as a cover crop to prevent erosion because they can overwinter and, as a legume, they fix nitrogen ...
... many important crops need no insect pollination at all. The ten most important crops,[28] comprising 60% of all human food ... Rice, wheat, and corn are all wind-pollinated, because this is true of all grasses. ... to the value of crops across the world. However, despite contributing substantially to crop pollination, there is debate about ... Similarly, no crops originating in the New World depend on the domesticated honey bee Apis mellifera at all, as the insect is ...
Other kinds of insects (specialised sawflies and aphids) sequester glucosinolates.[19] In specialised aphids, but not in ... Wheat, C. W.; Vogel, H.; Wittstock, U.; Braby, M. F.; Underwood, D.; Mitchell-Olds, T. (2007). "The genetic basis of a plant ... The use of glucosinolate-containing crops as primary food source for animals can have negative effects if the concentration of ... but also certain aphids, moths, such as the southern armyworm, sawflies, and flea beetles.[citation needed] For instance, the ...
As of 2014, potatoes were the world's fourth-largest food crop after maize (corn), wheat, and rice.[4] ... the green peach aphid (Myzus persicae), the potato aphid, beet leafhoppers, thrips, and mites. The potato cyst nematode is a ... Potato crop yields are determined by factors such as the crop breed, seed age and quality, crop management practices and the ... Wheat[C] Potatoes[D] Cassava[E] Soybeans, green[F] Sweet potatoes[G] Yams[Y] Sorghum[H] Plantain[Z] RDA ...
a b c d e f ISAAA Brief 43-2011: Executive Summary Global Status of Commercialized Biotech/GM Crops: 2011 Archived 10 February ... But Bt cotton is ineffective against many cotton pests, however, such as plant bugs, stink bugs, and aphids; depending on ... The next earliest was also found at Mehrgarh: a collection of cotton seeds discovered amidst charred wheat and barley grains ... GM cotton crop was 4.0 million hectares in 2011 the second largest area in the world, the Chinese GM cotton crop was third ...
... of wheat samples, including major cultivars, were susceptible,[22] implying that higher crop diversity was required. The Nobel ... such as parasitoidal wasps which are able to control aphids and lepidopteran caterpillars. These ecosystems continuously ... Within-crop diversity, a specific crop can result from various growing conditions, for example a crop growing in nutrient-poor ... "The Crop Trust". The Crop Trust. Retrieved 14 June 2016.. *^ U.S. Department of Agriculture's National Center for Genetic ...
Sometimes a third crop, winter wheat, is added to the rotation. Many of the maize varieties grown in the United States and ... Corn leaf aphid (Rhopalosiphum maidis). *Corn rootworms (Diabrotica spp) including Western corn rootworm (Diabrotica virgifera ... Wheat[C]. Potatoes[D]. Cassava[E]. Soybeans, green[F]. Sweet potatoes[G]. Yams[Y]. Sorghum[H]. Plantain[Z]. RDA ... When ground into flour, maize yields more flour with much less bran than wheat does. It lacks the protein gluten of wheat and, ...
They are still often grown as a cover crop to prevent erosion, because they can overwinter and because as a legume, they fix ... Gulban is made of peeled, half beans collected and well cooked with other grains such as wheat, peas and chickpeas. This is ... Broad bean plants are highly susceptible to early summer infestations of the black bean aphid, which can cover large sections ... To make Panetela combine and roast a cup of: fava bean (habas), barley, corn, wheat, rice and / or beans without allowing it to ...
... similar to a high yielding wheat crop.[80] Producers[edit]. The world-leading producer of hemp is China, which produces more ... found in both indoor and outdoor crops, include the hemp russet mite, Aculops cannibicola, and cannabis aphid, Phorodon ... "Crop Factsheet: Hemp" Archived 26 March 2009 at the Wayback Machine, National Non-Food Crops Centre, 9 June 2008. Retrieved on ... Hemp crops are tall, have thick foliage, and can be planted densely, and thus can be grown as a smother crop to kill tough ...
a b Chestnut mosaic virus : Transmission by the aphid Myzocallis castanicola on Chestnut tree. By J.-C. Desvignes and D. ... Their carbohydrate content compares with that of wheat[38] and rice. Chestnuts have twice as much starch as the potato on an as ... Chestnuts produce a better crop when subjected to chill temperatures during the dormant period. Frosts and snowfalls are ... The oak aphid (Myzocallis castanicola) sucks on the apex of young shoots and leaves. Native to Europe and North America, it is ...
Crop Sci 35:1451-1461. *^ Staff, USDA Economic Research Service. Last updated: January 24, 2013 Wheat Background ... Plums genetically engineered for resistance to plum pox, a disease carried by aphids ... WheatEdit. As of December 2017, genetically modified wheat has been evaluated in field trials, but has not been released ... Most vegetable oil used in the US is produced from GM crops canola,[89] corn,[90][91] cotton[92] and soybeans.[93] Vegetable ...
II: gall midges of fodder crops. Crosby Lockwood & Son Ltd., London.. *Barnes, H.F. 1948a. Gall midges of economic importance. ... The most common prey are aphids and spider mites, followed by scale insects, then other small prey such as whiteflies and ... Other important pests of this family are the wheat blossom midge Sitodiplosis mosellana, the asian rice gall midge (Orseolia ... VI: gall midges of miscellaneous crops. Crosby Lockwood & Son Ltd., London.. *Barnes, H.F. 1951. Gall midges of economic ...
Collectively, non-native crops and livestock account for 98% of US food.[11] These and other benefits from non-natives are so ... For example, soybeans, kiwi fruit, wheat, honey bees, and all livestock except the American bison and the turkey are non-native ... Some become invasive, for example the oleander aphid, accidentally introduced with the ornamental plant, oleander. ... Sweet clover (Melilotus sp.), introduced and naturalized to the Americas from Europe as a forage and cover crop ...
Aphids[18] and carabid beetles[19] are more likely to be predated by birds near bird feeders. ... Additionally, a bird bath and grit (sand), that birds store in their crops to help grind food as an aid to digestion, can be ... Suet cake - or "fat balls" are nutritional supplements for wild birds, commonly consisting of sunflower seeds and wheat or oat ...
Agrobacteria infection is less successful in crops like wheat and maize.. Electroporation is used when the plant tissue does ... a costly virus that causes stunted growth which is carried in Johnson grass and spread by aphid insect vectors. These strands ... Crops[edit]. See also: List of genetically modified crops. Herbicide tolerance[edit]. Crop. Use. Countries approved in. First ... Genetically modified crops (GMCs, GM crops, or biotech crops) are plants used in agriculture, the DNA of which has been ...
Push-pull technique: intercropping with a "push" crop that repels the pest, and planting a "pull" crop on the boundary that ... Spraying of especially wheat and corn in Europe is believed to have caused an 80 per cent decline in flying insects, which in ... Treated insects exhibit leg tremors, rapid wing motion, stylet withdrawal (aphids), disoriented movement, paralysis and death.[ ... Transgenic crops that act as insecticides began in 1996 with a genetically modified potato that produced the Cry protein, ...
On the opposite end of the spectrum, droughts can also wipe out crops. It is estimated that 35-50% of the world's crops are at ... One example is wheat, which has the ability to express genes that make it resistant to leaf and stem rusts, and to the Hessian ... drought conditions favour different kinds of pests like aphids, whiteflies and locusts.[106] ... Farmers who depend on weather to water their crops lose tons of crops per year due to drought. Plant growth is severely stunted ...
Striga infects both grasses and grains, including corn, rice and sorghum, undoubtedly some of the most important food crops. ... "wheat", hence "food".[7] The related term parasitism appears in English from 1611.[8] ... aphids, and caterpillars are much like ectoparasites, attacking much larger plants; they serve as vectors of bacteria, fungi ... Species of Striga (witchweeds) are estimated to cost billions of dollars a year in crop yield loss, infesting over 50 million ...
... residue and a wheat (Triticum aestivum) cover crop. Weed Technol. 15: 467-473 Beard, J. 1973 Turfgrass: Science and Culture ... 2004 Alfalfa living mulch advances biological control of soybean aphid Why I Chose White Clover as a Living Mulch Living Mulch ... When cover crops are turned over into the soil, they contribute nutrients to the main crop so that less chemical fertilizer is ... Legume cover crops have important positive effects on the nutrient cycling of tree crops. Leguminous living mulches work in ...
The oak aphid (Myzocallis castanicola) sucks on the apex of young shoots and leaves. Native to Europe and North America, it is ... Their carbohydrate content compares with that of wheat and rice. Chestnuts have twice as much starch as the potato on an as-is ... Chestnuts produce a better crop when subjected to chill temperatures during the dormant period. Frosts and snowfalls are ... Chestnut mosaic virus is probably transmitted by the oak aphid Myzocallis castanicola. Root rot is caused by the honey fungus ...
... is considered a noxious weed in arable crops, especially cereals and rapeseed. In winter wheat, one plant per ... Furthermore, aphids and leafhoppers can cause relevant damage to Centaurea cyanus. Seeds are harvested either by hand or, in an ... In the past, it often grew as a weed in cornfields (in the broad sense of "corn", referring to grains, such as wheat, barley, ... Vincent van Gogh, Wheat Field with Cornflowers, 1890. Cornflower blue Other names include bluebottle, bluecap, blue blob, blue ...
Russian wheat aphid) [14] Euwallacea fornicatus (tea shot-hole borer) [15] Forficula auricularia (common earwig) [16] ... Helicidae and Hygromiidae as Pests in Cereal Crops and Pastures in Southern Australia. In Baker, G.M. Molluscs as Crop Pests ... green citrus aphid) [9] Bruchophagus roddi (alfalfa seed chalcid) [10] Cerataphis lataniae (palm aphid) [11] Ceratitis capitata ... Indian grain aphid) [25] Solenopsis geminata (ginger ant) [26] Spodoptera frugiperda (fall armyworm) [27] Spodoptera litura ( ...
The U.S. GM cotton crop was 4.0 million hectares in 2011 the second largest area in the world, the Chinese GM cotton crop was ... The next earliest was also found at Mehrgarh: a collection of cotton seeds discovered amidst charred wheat and barley grains ... However, Bt cotton is ineffective against many cotton pests, such as plant bugs, stink bugs, and aphids; depending on ... of the Australian cotton crop was GM in 2009 making Australia the country with the fifth largest GM cotton crop in the world. ...
... with special reference to the Russian wheat aphid (Homoptera: Aphididae)". J Econ Entomol. 84: 140-147. doi:10.1093/jee/84.1. ... Fisher, RA (1921). "Studies in crop variation. I. An examination of the yield of dressed grain from Broadbalk". Journal of ... Smith, HF (1938). "An empirical law describing heterogeneity in the yield of agricultural crops". J Agric Sci. 28: 1-23. doi: ... Hayman, BI; Lowe, AD (1961). "The transformation of counts of the cabbage aphid (Brevicovyne brassicae (L.))". NZ J Sci. 4: 271 ...
Aphids as Crop Pests. CABI. pp. 229-230. ISBN 978-1-78064-709-8. Brust, Gerald E. (22 June 2006). "Early season aphid and ... aphid honeydew and fungicide effectiveness in wheat under field conditions". Plant Pathology. 41 (6): 661-675. doi:10.1111/j. ... melon or cotton aphid Aphis nerii, oleander aphid Hyadaphis coriandri, coriander aphid Longistigma caryae, giant bark aphid ... "Aphid Species File - Aphidomorpha". Université de Montréal. aphid.speciesfile.org. Aphid Species File. Montreal, Canada: Aphid ...
As of 2014, potatoes were the world's fourth-largest food crop after maize (corn), wheat, and rice. Following millennia of ... the green peach aphid (Myzus persicae), the potato aphid, Tuta absoluta, beet leafhoppers, thrips, and mites. The potato cyst ... Potato crop yields are determined by factors such as the crop breed, seed age and quality, crop management practices and the ... Seed potato crops are rogued in some countries to eliminate diseased plants or those of a different variety from the seed crop ...
NDSU › Crop & Pest Report › Images / 06/20/13 / aphids_in_wheat_map.Knodel.png ... NDSU Crop and Pest Report - August 31, 2017 NDSU Crop and Pest Report - August 17, 2017 NDSU Crop and Pest Report - July 27, ... NDSU Crop and Pest Report - July 20, 2017 Download PDF Reports 2016-Current - More… ...
... indicate that cereal aphids are become more common and abundant in winter wheat and spring wheat in southern areas of MN, but ... NDSU › Crop & Pest Report › Entomology / Watch For Cereal Aphids in Winter Wheat and Spring Wheat (06/09/16) ... Watch For Cereal Aphids in Winter Wheat and Spring Wheat. Field reports from Minnesota (MN) indicate that cereal aphids are ... NDSU Crop and Pest Report - August 31, 2017 NDSU Crop and Pest Report - August 17, 2017 NDSU Crop and Pest Report - July 27, ...
... [1994] Aheer, G.M.; Ahmad, K.J.; Ali, A. (Ayub Agricultural Research ... Maximum aphid population was trapped in March. Wind velocity played a positive and significant role in fluctuating aphid ... Maximum aphid population was trapped in March. Wind velocity played a positive and significant role in fluctuating aphid ... rainfall and wind velocity in fluctuating aphid density in wheat. Fluctuation in pest population varied in different years. It ...
... , Syed Wafa Abbas*, Umar Niaz ... 29 species of the aphid are infested the wheat crop [4]. Aphid is the key sucking pest of wheat and other crops. It is the ... which cause huge yield losses in wheat crop. The study was conducted to check the effect of aphid density on wheat crop and its ... Wheat crop, Triticum aestivum, Aphid species, Infestation level, Yield losses. Introduction. Wheat (Triticum aestivum L.) is an ...
BYD is a virus disease that is moved from grasses and some crops to and within wheat fields by aphids. Severity of the disease ... The percentage of aphids carrying the virus is unknown. There can be many aphids on the crop but only a very low percentage ... In Kentucky wheat fields aphids reproduce asexually. That is to say all the aphids you see are female and all of their ... a very small number of aphids can have a major impact on crop yield. It would be nice to know what proportion of aphids ...
... is a serious pest of wheat in South Africa and can cause up to 80% yield loss on susceptible cultivars if not controlled. ... Crop Science 36, 210.Google Scholar. *. Tolmay, V.L. (1995): The inheritance and mechanisms of Russian wheat aphid (Diuraphis ... Russian wheat aphid (Diuraphis noxia) is a serious pest of wheat in South Africa and can cause up to 80% yield loss on ... Although present in Hungary, Russian wheat aphid is not an economically significant pest of wheat and this is possibly due to ...
New Strain of Aphid Attacks Colorados Wheat Crops. 23 Jun, 2003 A new strain of Russian wheat aphid has been identified in ... If left untreated, the aphid can destroy more than half of a crop. The aphids begin to appear in crops in April and May and ... Since the voracious original strain of Russian wheat aphid entered Colorado in 1986, it has cost the states 14,000 wheat ... This represents about 30 percent of the total wheat acreage in the United States. Aphids prevent young wheat leaves from ...
Similar to the Aphid Advisor app for soybean aphids, the free Cereal Aphid Manager app developed by AAFC helps to determine if ... There are several species of aphids that are grouped together as "cereal aphids". The most common are bird cherry oat aphids ( ... Tracey Baute May 23, 2012 3704 Comments Off on Cereal Aphids Found in Wheat - Should You Be Concerned? ... Figure 1) and corn leaf aphids (Figure 2), though English grain aphid and greenbugs can sometimes be found. The aphids would ...
For more than 35 years Greenbook® has been the trusted, go-to crop and turf chemical reference guide for farmers, ranchers, ... Scouting: Check at least 10 plants in four areas of the field for aphid presence. Economic threshold: Aphids present on at ... agronomists, retailers and crop advisers alike. Greenbook collects, maintains, and disseminates the most useful plant ...
AphidBBCExecutive directorFriends of the EarthGenetic engineeringGenetically modified cropsGenetically modified wheat ... GM wheat crop fails to repel bugs, £3m trial branded a waste A controversial trial of genetically modified (GM) wheat has ... Researchers attempted to engineer a variety of wheat to emit an odor that deters aphids in the hope of reducing the amount of ... The crops, nicknamed "whiffy wheat," were successful in lab tests, but … Read More ...
Western Regional Aphid Suction Trap Network and Update on Russian Wheat Aphid Public Deposited ... WESTERN_REGIONAL_APHID_SUCTION.pdf. 2018-04-20. Public. Press to Select an action * Download ... Cereal Crop Pests. Conference Location. *Portland, Oregon, USA. Subject. *Agricultural pests--Control--Congresses ...
While some species have a broad host range and cause damage to a variety of crops, others are restricted to only closely ... In addition, BAK-1 contributes to nonhost resistance to aphids pointing to another parallel between plant-pathogen and -aphid ... In addition, BAK-1 contributes to nonhost resistance to aphids pointing to another parallel between plant-pathogen and -aphid ... While some species have a broad host range and cause damage to a variety of crops, others are restricted to only closely ...
Fungi strengthen the "immune systems" of crops. The researchers studied three types of fungi to compare their effects against ... Home fungi A unique fungi can strengthen the "immune systems" of wheat and bean plants against aphids reducing agricultural ... aphid infestations on wheat and bean plants:. "It turned out that two of these fungi were able to effectively reduce aphid ... A unique fungi can strengthen the "immune systems" of wheat and bean plants against aphids reducing agricultural insecticide ...
The Russian wheat aphid (Diuraphis noxia) is an aphid that can cause significant losses in cereal crops. The species was ... Aphid infestation on wheat also affects the flour that is made from infested wheat plants. Aphid feeding in wheat results in ... The species was probably transmitted through wheat imports. Russian wheat aphids are one of the most significant pests on wheat ... Lists general information and resources for Russian Wheat Aphid. Russian Wheat Aphid: An introduced pest of small grains in the ...
2006 by Gary Hein and John Thomas General Thresholds for Russian Wheat Aphid Season Crop Stage Treatment Threshold Level ... 120-day plant-back interval for non-labeled crops.. 4A. Gaucho. (multiple formulations);. (Commercial Seed-Treaters Only). ... Type of Aphid. Seedling. Stage. Boot to. Heading Stage. Flowering. Stage. Milky Ripe. Stage. Milk to Medium. Dough Stage. ... English Grain Aphid. 30. 50. 5. 10. ,10. This list is not inclusive. See http://www.greenbook.net or other resources for ...
Section IV: Cereal Crop Insects. 64th Annual Pacific Northwest Insect Management Conference, held January 3 and 4, 2005. ... RUSSIAN_WHEAT_APIDD_CONTROL_IN_SPRING_BARLEY__2004.pdf. 2017-07-30. Public. Press to Select an action * Download ... of bitstreams: 1 RUSSIAN WHEAT APIDD CONTROL IN SPRING BARLEY, 2004.pdf: 214294 bytes, checksum: ... of bitstreams: 1 RUSSIAN WHEAT APIDD CONTROL IN SPRING BARLEY, 2004.pdf: 214294 bytes, checksum: ...
... reports of some wheat fields infested with bird cherry-oat aphids. I have seen low levels of greenbugs in some of our ... The decision to control aphids is especially important right now so a producer can decide to add an insecticide with their top- ... Greenbug infestations results in visible injury to the plants, but bird cherry-oat aphid infestations do not produce visible ... Strip Cropping and Interseeding Cover Crops with Marty Weiss. Capturing sunlight and keeping living roots in the ground as long ...
Growers could be caught napping after aphids started to arrive in cereal and oilseed rape crops several weeks earlier than ... Winter and spring wheat. Lots of these about on cereal crops too. Rose grain aphid pic.twitter.com/3220faHkeE ... Finding aphids too easily in end Sept planted wheat which has had deter and a follow up pyrethroid pic.twitter.com/wENOOlbWuF ... finding aphids in Wbarley,patches of BYDV starting to show even in later drilled Deter treated crops@agronomist_oli pic.twitter ...
Location: Wheat, Peanut, and Other Field Crops Research Title: Sugarcane aphid resistant sorghums found within USDA-ARS Lubbock ... ARS Home » Plains Area » Stillwater, Oklahoma » Wheat, Peanut, and Other Field Crops Research » Research » Publications at this ... Sugarcane aphid resistant sorghums found within USDA-ARS Lubbock, TX genotypes [abstract]. In: Valentin, K.E., Burow, G.B., ... Technical Abstract: The sugarcane aphid, Melanaphis sacchari, was discovered infesting grain sorghum in the southern United ...
Location: Wheat, Peanut, and Other Field Crops Research Title: Plant resistance in sorghums to the sugarcane aphid (Hemiptera: ... ARS Home » Plains Area » Stillwater, Oklahoma » Wheat, Peanut, and Other Field Crops Research » Research » Publications at this ... Two of the ten entries OL2042 and SP7715 expressed a high degree of resistance to the sugarcane aphid with damage ratings 4.0, ... The relationship helps explain the degree of tolerance when sorghum is challenged with heavy sugarcane aphid feeding. This ...
Scouting for Bird Cherry Oat Aphids on Wheat. Posted on March 27, 2019. by l-francis ... of Soil & Crop Sciences, College Station, 979-845.5366, [email protected] Twelve Common Grower Questions about N for Wheat ... Despite an abundance of wheat worldwide, there is a shortage of high protein wheat which has generated protein premiums at ... tamu.edu Early spring is an important time to assess the wheat crop and determine end goals and marketing options that will ...
Field Evaluation of Different Insecticides for the Control of Mustard Aphid, Lipaphis erysimi (Kalt.) (Homoptera: Aphididae) on ... Efficacy of different insecticides against mustard aphid, Lipaphis erysimi (Kalt.) on mustard crop. M.Sc. Thesis, Sindh ... Tests will acricides against wheat mites. J. Econ. Ent., 48: 157-161.. Islam, N., M.I. Bhuiyan, A. Begum and M.A. Karim, 1990. ... Control schedule of mustard crop particularly against mustard aphid in India. Oilseed J., 4: 125-144.. Zaman, M., 1990. ...
Aphid is one of the most serious cucumber pests and frequently cause severe damage to commercially produced crops. ... Aphid is one of the most serious cucumber pests and frequently cause severe damage to commercially produced crops. ... In this study, two parental cucumber lines, JY30 (aphid susceptible) and EP6392 (aphid resistant), and pools of resistant and ... In this study, two parental cucumber lines, JY30 (aphid susceptible) and EP6392 (aphid resistant), and pools of resistant and ...
Armyworm on Wheat ENT-36 agronomic crops Soybean Aphid ENT-37 agronomic crops ... agronomic crops Monitoring Western Corn Rootworm Activity in Soybeans to Predict Rootworm Injury in First-Year Corn ENT-17 ...
Wheat (134) Apply Wheat filter *Crop diseases (107) Apply Crop diseases filter ... Russian wheat aphid: declared pest * Boosting Grains Research and Development - Royalties for Regions ... WA is the worlds leading supplier of premium malting barley to China, the major supplier of wheat for the Japanese udon noodle ... Do our current wheat varieties need different management to get the best performance from them. ...
Aphids and Parasitoids Population) by Shahid Sohaib (ISBN: 978-3-639-31855-5); Published by AV Akademikerverlag GmbH & Co. KGin ... In Pakistan, the wheat crop is cultivated over an area of 8.033 million hectares engaging 33 percent of the cultivated area of ... In Pakistan, the wheat crop is cultivated over an area of 8.033 million hectares engaging 33 percent of the cultivated area of ... Wheat (Triticum aestivum L.) and brassica (Brassica compestris L.) are the important crops in barani areas. The former is ...
Leaf reflectance spectra of cereal aphid-damaged wheat. Crop Sci. 1999;39:1835-40.CrossRefGoogle Scholar ... Increased susceptibility to aphids of flowering wheat plants exposed to low temperatures. Environ Entomol. 2015;44(3):610-8. ... Increased susceptibility to aphids of flowering wheat plants exposed to low temperatures. Environ Entomol. 2015;44:610-8. ... In a study of Russian wheat aphids [Diuraphis noxia (Mordvilko) (Hemiptera: Aphididae)] and greenbugs (S. graminum), both ...
In Western Australia, competition from 7-90 capeweed plants per square metre in a wheat crop can reduce crop yield by 28-44% ... A summary of registered insecticides for use in cereal crops for controlling the aphid vectors of barley yellow dwarf virus ( ... WA is the worlds leading supplier of premium malting barley to China, the major supplier of wheat for the Japanese udon noodle ... Beet western yellows virus (BWYV) that has been renamed Turnip Yellows virus (TuYV) is an aphid-borne virus that causes yield ...
Get identification tips and learn more about the corn leaf aphids natural enemies, its potential impact on crop and management ... Corn leaf aphids are blue-green in color and trimmed in black. ... leaf aphid is winter barley but winter rye and winter wheat are ... Pest Facts - Corn Leaf Aphid. *Latin name: Rhopalosiphum maidis. *Worldwide pest of corn and related grass crops; present ... When the crop is under moisture stress populations may increase rapidly. *Aphid populations are highly susceptible to control ...
New Crop Model Should Speed Resistance to Wheat Diseases Article. FASTER ... SIMPLER ... SHARPER! Article. Tracking and Taming ... Soybean Aphid Development on, and BCMV Transmission to, Otebo Dry Bean Summary , Article. Perspective. Standard Operating ... Crop Management. Research. The Economic Impacts of Disease Suppressive Rotations in Maine Potato Cropping Systems Summary , ... Safeguard Wheat Profitability with Nitrogen Reference Strips Article. New Articles from. Applied Turfgrass Science. Research. ...
  • In North Dakota and Minnesota, IPM Scouts also report increasing populations, so continue to scout fields for cereal aphid population buildups. (ndsu.edu)
  • Recent rains last week may have decreased aphid populations by increasing the risk for fungal pathogens that infect and kill aphids, and/or strong thunderstorms could have physically washed aphids off leaves and drowned them. (ndsu.edu)
  • After heading, cereal aphids usually do not cause significant yield losses, but can reduce grain quality (protein and test weight) if populations are economic and plants are stressed from abiotic factors, such as drought. (ndsu.edu)
  • Aphid life cycles are very complicated and vary considerably between species and even between individual populations of the same species. (uky.edu)
  • Some predators do take action and help keep aphids populations below threshold. (fieldcropnews.com)
  • On-farm trials done in Ontario have not found an economic benefit to spraying aphids, though if populations reach an average of 12-15 aphids per stem prior to heading, an insecticide application may be required, though again, this is a rare event in Ontario. (fieldcropnews.com)
  • Beneficial insects do a relatively good job of controlling aphid populations so consideration should be given to how the beneficial insects are dealing with the aphids before applying an insecticide since the registered insecticides will harm the beneficial insects as well. (fieldcropnews.com)
  • Aphid populations can overwinter through temperatures between 0 and 5 degrees Celsius. (wikipedia.org)
  • However, I prefer that you scout first and make this application if and when aphid populations reach 3 or more per foot of row but before populations exceed 8 or more aphids per foot. (deltafarmpress.com)
  • We can often ride low aphid populations into winter during a normal/cooler fall and them clean them up in late winter. (deltafarmpress.com)
  • All invasive populations of Russian wheat aphid outside its natural range have an anholocyclic life cycle and are parthenogenetic (reproduce without needing to mate). (agriculture.gov.au)
  • Ladybugs will feed on other pests, but are best known to eliminate aphid populations, and are one of the most active predators. (buglogical.com)
  • Aphid populations increased around the state due to immigration of the insects from the south and local reproduction, according to a Kansas State University entomologist. (croplife.com)
  • The good news, said Jeff Whitworth, crops specialist with K-State Research and Extension, is that in the last seven to 10 days, most of these populations have, or are, decreasing due to the increase in parasitoid wasps and lady beetles. (croplife.com)
  • May be controlled with photoselective greenhouse covers, which reduce aphid populations but not aphid parasitoids. (flashcardmachine.com)
  • Russian wheat aphids are considered one of the most invasive pests of small grains in the world and many efforts have been made to control their populations. (orkin.com)
  • In some fields, natural enemy populations seem to be building in response to the soybean aphids. (pembinavalleyonline.com)
  • The researchers found that aphid populations were larger in wheat when barriers blocked predators such as ground beetles, rove beetles, and linyphiid spiders. (motherearthnews.com)
  • Also, Erin saw a small plot with increasing soybean aphid populations - it was also noted in other research plots compared to last week. (iastate.edu)
  • 8 Recent research with new herbicides showed reductions in wild oat populations in wheat of 94-100% depending on rate and timing. (croplife.org)
  • Crop rotation involves planting different crops on the same plot during different times of the year, and can include some of the benefits of intercropping, such as reducing insect pest populations, increasing beneficial insects, and weed suppression. (ufl.edu)
  • Sampling of RWA, other cereal aphids, and natural enemy populations was conducted on four dates from mid May through early July. (k-state.edu)
  • The RWA-resistant barley varieties had no negative impact on populations of other cereal aphids compared to those found on the susceptible variety, Otis at any of the three research sites. (k-state.edu)
  • There was also no clear response of populations of other cereal aphids to different planting date. (k-state.edu)
  • Wheat midge (Sitodiplosis mosellana): Most of the higher populations of wheat midge were reported from the Southwest. (gov.mb.ca)
  • Aside from fields staying green longer, another possible explanation for the increased aphid populations following fungicide applications could be that beneficial fungi that affect aphids could have been killed by the fungicides, as has been found to happen with use of some fungicides (Lagnaoui & Radcliffe 1998, Nanne & Radcliffe 1971, Wilding 1982). (gov.mb.ca)
  • On a different note cotton aphids are real bad around the Valley, had heavy populations in Harlingen, Combs, Sebastian areas. (agfax.com)
  • I feel though in some fields these predators are doing a good job keeping aphid populations at bay but in other fields they are having a hard time keeping up with the rapid reproduction of these cotton aphids which is probably due to the heat. (agfax.com)
  • Sugarcane aphid populations have a tendency to build up and then crash throughout the season, so the sorghum industry is also working on better sampling and forecasting tools that will help growers decide whether a pesticide application is actually needed, he added. (agjournalonline.com)
  • Some living mulches were found to increase populations of the natural enemies of crop pests. (wikipedia.org)
  • The aphid damages wheat and other grains by injecting saliva into grain and sucking sap from plants. (colostate.edu)
  • The aphid can survive the winter in most areas of the state where wheat and grain is grown. (colostate.edu)
  • The most common are bird cherry oat aphids (Figure 1) and corn leaf aphids (Figure 2), though English grain aphid and greenbugs can sometimes be found. (fieldcropnews.com)
  • The sugarcane aphid, Melanaphis sacchari, was discovered infesting grain sorghum in the southern United States in 2013 and has been a perennial pest through 2016. (usda.gov)
  • Six out of 10 grain sorghum lines that are at or near commercial release, were found to express good sources of resistance against the sugarcane aphid. (usda.gov)
  • Recent declines in wheat grain price may make positive returns above total cost impossible. (agrilife.org)
  • Host plants: cereal grain crops including wheat and barley and to a lesser extent, wild grasses such as wheatgrasses, brome-grasses, ryegrasses and anything in the grass family. (wikipedia.org)
  • Bird cherry-oat aphids are being found in suction traps right across the UK and the grain aphid has made its first appearance in 2016 after it was recorded in Herefordshire. (fwi.co.uk)
  • At the Minneapolis Grain Exchange, spring wheat prices had been prairie-flat this year, but then suddenly caught fire in July. (twincities.com)
  • The grain aphid ( Sitobion avenae F.) is a major agricultural pest which causes significant yield losses of wheat in China, Europe and North America annually. (biomedcentral.com)
  • Transcriptome profiling of the grain aphid alimentary canal after feeding on wheat plants could provide comprehensive gene expression information involved in feeding, ingestion and digestion. (biomedcentral.com)
  • However, due to the tiny size of the alimentary canal and lack of genomic information on grain aphid as a whole, selection of the RNAi targets is a challenging task that as far as we are aware, has never been documented previously. (biomedcentral.com)
  • In this study, we performed de novo transcriptome assembly and gene expression analyses of the alimentary canals of grain aphids before and after feeding on wheat plants using Illumina RNA sequencing. (biomedcentral.com)
  • Furthermore, comparison of the transcriptomes of alimentary canals of pre- and post feeding grain aphids indicated that 5490 unigenes were differentially expressed, among which, diverse genes and/or pathways were identified and annotated. (biomedcentral.com)
  • Finally, by adding fluorescently labelled dsRNA into the artificial diet, the spread of fluorescence signal in the whole body tissues of grain aphid was observed. (biomedcentral.com)
  • Comparison of the transcriptome profiles of the alimentary canals of pre- and post-feeding grain aphids on wheat plants provided comprehensive gene expression information that could facilitate our understanding of the molecular mechanisms underlying feeding, ingestion and digestion. (biomedcentral.com)
  • Furthermore, five novel and effective potential RNAi target genes were identified in grain aphid for the first time. (biomedcentral.com)
  • The aphid species infesting wheat in China include grain aphid ( Sitobion avenae F.), greenbug ( Schizaphis graminum Rondani), Rhopalosiphum padi Linnaeus and Metopolophium dirhodum Walker. (biomedcentral.com)
  • The grains industry is the largest plant industry in Australia and grain crops are grown in all states and territories. (agriculture.gov.au)
  • Grain growers are advised by the Russian Wheat Aphid National Technical Group to monitor their crops for infestations of the newly introduced Russian wheat aphid and to report suspected infestations but to hold off spraying wherever possible until spring. (agriculture.gov.au)
  • The Russian wheat aphid is widespread in grain growing regions of the world. (agriculture.gov.au)
  • Russian wheat aphids can be found on grasses or the underside of small grain leaves all year long. (orkin.com)
  • Wheat grain heads may be bleached in appearance. (orkin.com)
  • The following rules of thumb also can help reduce the likelihood of an infestation: test soil regularly, remove any unused grains, plant spring grains early to prevent aphids from starting colonies, keep grain fields healthy since aphids tend to do well in stressed fields. (orkin.com)
  • Canadian farmers reported increased production of canola, soybean, oats and corn for grain in 2017, while wheat and barley production was lower than in 2016. (pembinavalleyonline.com)
  • In wheat there could be Oat bird-cherry aphid, English grain aphid, Corn leaf aphid or Greenbugs, all of which are feasted upon by lady bugs. (monroenews.com)
  • Producer Q&A on Grain Storage Affected by Sudden Temperature Drop Pesticide Safety: Ag Agencies Address Label Restrictions for Crop Rotation and Cover Crops. (unl.edu)
  • Parson considers wheat, rye, oats and other grain-type cover crops to be natural enemy habitat. (hobbyfarms.com)
  • Certain species of aphids attack grain crops but not vegetable crops. (hobbyfarms.com)
  • Time your grain planting so the beneficials move in to take care of the wheat aphids and then stick around when the vegetable aphids arrive. (hobbyfarms.com)
  • Aphids were a concern in many small grain cereal fields. (gov.mb.ca)
  • Application of insecticides to control aphids in small grain cereals was reported from near Portage la Prairie (C), Brunkild (C), Morris (C), and Aubigny (E). Most of these fields were sprayed in the first 3 weeks of August. (gov.mb.ca)
  • English Grain Aphid , Sitobium avenae Mordvilko, is a pest aphid appearing in cereals especially wheat as grain begins to fill. (wsu.edu)
  • Historically they have been reported as causing economic loss at 25 aphids per grain head. (wsu.edu)
  • Newer estimates of EGA damage occur at 50 aphids per tiller before and during the milk stage of grain fill. (wsu.edu)
  • They are a species confused with English Grain Aphid and Bird Cherry - Oat Aphid. (wsu.edu)
  • The English grain aphid Sitobion avenae (F.), the rose-grain aphid Metopolophium dirhodum (Walker), and the greenbug Schizaphis graminum (Rondani) were the most frequently recorded aphid species throughout the cereal-growing season. (thefreedictionary.com)
  • The National Management Group (NMG), comprising all Australian governments, Grain Producers Australia and Plant Health Australia, met on 8 June 2016 to discuss the incursion of Russian wheat aphid (Diuraphis noxia) in South Australia. (ippc.int)
  • A similar model was recently developed for prairie grain aphids through funding by the Pest Management Centre. (gc.ca)
  • 2017. Mapping of quantitative trait loci for grain yield and its components in a US popular winter wheat TAM 111 using 90K SNPs. (tamu.edu)
  • 2018. Canopy temperature depression at grain filling correlates to winter wheat yield in the US Southern High Plains. (tamu.edu)
  • 2016. Phenotypic plasticity of winter wheat heading date and grain yield across the U.S. Great Plains. (tamu.edu)
  • Effect of aphid species infestation on wheat crop, Triticum aestivum L. and its yield. (alliedacademies.org)
  • Rhopalosiphum maidis, Rhopalosiphum padi, Schizaphis graminum and Sitobian avenae are the major aphid species of wheat in Pakistan, which cause huge yield losses in wheat crop. (alliedacademies.org)
  • Among the different insect pests, 29 species of the aphid are infested the wheat crop [ 4 ]. (alliedacademies.org)
  • Rhopalosiphum maidis , Rhopalosiphum padi , Schizaphis graminum and Sitobia avenae are the major aphid species of wheat in Pakistan. (alliedacademies.org)
  • Aphid responds differently to different genotype of plant species while reducing the yield losses [ 8 ]. (alliedacademies.org)
  • The main objective of our study is used to check the infestation level of aphid's species on wheat crop and also their effects on yield. (alliedacademies.org)
  • Does genetically engineering crops - creating seeds with the DNA of other species inserted in them, like a tomato with DNA that includes genes from a fish - violate religious principles? (prn.fm)
  • While some species have a broad host range and cause damage to a variety of crops, others are restricted to only closely related plant species. (frontiersin.org)
  • Interestingly, resistance to some aphid species is known to involve plant resistance proteins with a typical NB-LRR domain structure. (frontiersin.org)
  • In addition, it was recently shown that unknown aphid derived elicitors can initiate reactive oxygen species (ROS) production and callose deposition and that these responses were dependent on BAK1 (BRASSINOSTERIOD INSENSITIVE 1-ASSOCIATED RECEPTOR KINASE 1) which is a key component of the plant immune system. (frontiersin.org)
  • Nearly half of the one million known insect species feed on plants ( Wu and Baldwin, 2010 ), including aphids. (frontiersin.org)
  • Over 4000 aphid species have been described and a number of these are known to damage plant health ( Dixon, 1998 ). (frontiersin.org)
  • Most aphid species are highly specialized and can only infest plants in a single taxonomic family or few related plant species ( Blackman and Eastop, 2000 ). (frontiersin.org)
  • However, some aphid species are considered polyphagous and are able to infest plants in many families, including important crops. (frontiersin.org)
  • For example, the aphid species Acyrthosiphon pisum (pea aphid) can only colonize plant species in the family Fabaceae . (frontiersin.org)
  • In contrast, Myzus persicae (green peach aphid) can infest over 400 plant species, mostly dicotyledonous plants, in over 40 families ( Blackman and Eastop, 2000 ), including many important crops. (frontiersin.org)
  • Most aphid species produce multiple asexual generations through parthenogenesis during spring and summer, when secondary hosts, including many crops, are readily available, and enter a sexual life stage in autumn when the days become shorter and the temperature falls. (frontiersin.org)
  • The species was probably transmitted through wheat imports. (wikipedia.org)
  • Deutsch and his colleagues found that the effects of temperature on insect metabolism and demographics were fairly consistent across insect species, including pest species such as aphids and corn borers. (washington.edu)
  • The Russian wheat aphid's host range also includes several non-crop grass species that occur in Australia. (agriculture.gov.au)
  • It has a double tail at the tip of the abdomen, a feature that distinguishes it from all other cereal aphid species. (agriculture.gov.au)
  • Rhopalosiphum padi and R. maidis has been observed cohabiting on the same plant, there is a possible aphid attack strategy between the species that has not been studied and its sensitivity to climate warming conditions may play a role in reducing wheat production. (omicsonline.org)
  • This is the species sold by insectaries for aphid control. (buglogical.com)
  • The Russian wheat aphid eats all types of grasses but is a major pest species for wheat and barley. (mpi.govt.nz)
  • The RR plants have even invaded other crop species becoming a super-weed. (greens.org)
  • Unlike other aphid species, it has a supracaudal structure, meaning it has a twin-tailed appearance. (orkin.com)
  • Given that a field of monoculture agricultural crops is essentially a open buffet to many species of insects, I admit to being very skeptical as to how anyone could in good faith believe that this strategy would work. (eatdrinkbetter.com)
  • Additional research suggests that various ground beetle species supported by beetle banks may feed extensively on weed seed, and can play an important role in suppressing crop weeds. (motherearthnews.com)
  • 6 In recent years new aphid species have been introduced into Argentina that are not controlled by natural enemies. (croplife.org)
  • However, Frank and Liburd (2005) found reduced numbers of Bemisia tabaci and aphids (several species) in a more diverse cropping system involving squash and a living mulch, buckwheat ( Fagopyrum esculentum Moench). (ufl.edu)
  • Often when a pest becomes more abundant on one crop species than another, it is incorrectly assumed that the crop with high pest numbers may function as a trap crop. (ufl.edu)
  • In order to serve as a trap crop, a plant species must draw pests away from the main crop, resulting in fewer pests on the main crop than if the trap crop were not present. (ufl.edu)
  • This aphid is able to develop on cool-season grass species as well as warm-season grass species. (ippc.int)
  • Abdel-Rahman, M.A.A. 2005 , The relative abundance and species composition of hymenopterous parasitoids attacking cereal aphids (Homoptera: Aphididae) infesting wheat plants in Upper Egypt. (nhm.ac.uk)
  • The nomenclature used to identify the five strains of BYDV reflected the species of aphid that most efficiently transmitted that strain and were not intended to imply absolute specificity (Power and Gray, 1995). (fao.org)
  • This species is also used as the principal vector for MAV-Mexico in BYDV screening trials at the International Maize and Wheat Improvement Center (CIMMYT). (fao.org)
  • As with other field crops, each new growing season seems to introduce another challenge to farmers, adding to the list of pests, diseases and weed species that they're already managing. (country-guide.ca)
  • Planting date is the most important factor that determines the intensity of aphid infestations, and consequently, BYDV levels in fields. (uky.edu)
  • Infestations can develop relatively quickly due to an asexual stage in the aphid life cycle allowing for rapid population growth ( Blackman and Eastop, 2000 ). (frontiersin.org)
  • Certain fungi are able to establish a close rapport with plants that results in fewer insect infestations and thereby less damage to crops. (innovationtoronto.com)
  • It turned out that two of these fungi were able to effectively reduce aphid infestations by establishing themselves in plant roots and tissues. (innovationtoronto.com)
  • Greenbug infestations results in visible injury to the plants, but bird cherry-oat aphid infestations do not produce visible damage and may go unnoticed. (no-tillfarmer.com)
  • The first case was identified in a wheat crop in South Australia's Mid North, and infestations now stretch into Victoria, New South Wales and Tasmania. (grdc.com.au)
  • Seed treatments such as Gaucho, Cruiser and NipsIt Inside will generally protect against aphids infestations during the fall (and reduce transmission of barley yellow dwarf virus). (deltafarmpress.com)
  • The RWA infestations were investigated in irrigated, dryland, and greenhouse growing wheat and spectral reflectance was measured using a field radiometer with nine discrete spectral channels. (deepdyve.com)
  • The best strategy for managing aphid infestations in winter wheat - and the potential yellow dwarf diseases that they transmit - is prevention, according to a South Dakota State University Plant Pathology field specialist. (croplife.com)
  • Most infestations have occurred on wheat plants but a small number of barley and oat crops have also been affected. (ippc.int)
  • Farmers in Colorado have managed biotype A aphids with a combination of predatory insects, insecticides, controlling weeds that host the insect and by planting resistant varieties. (colostate.edu)
  • This makes it difficult to kill the aphids with predatory insects and insecticides. (colostate.edu)
  • Aphids are small insects with soft, pear-shaped bodies and piercing sucking mouthparts. (uky.edu)
  • Similar to the Aphid Advisor app for soybean aphids, the free Cereal Aphid Manager app developed by AAFC helps to determine if the number of beneficial insects you have will do the control for you, or whether there are too few and an insecticide application is required. (fieldcropnews.com)
  • Damage to plants as a result of aphid infestation can result in water stress, reduced plant growth, wilting, and importantly, these insects can are vectors of economically important plant viruses. (frontiersin.org)
  • Rising temperatures will stimulate insects' appetites -- and make some prone to reproducing more quickly -- spelling danger for key staples like wheat, corn and rice which feed billions of people, researchers said Thursday. (newvision.co.ug)
  • This suggests that the impact of our powdery mildew-resistant GM wheat plants on food web structure may be negligible and potential ecological effects on non-target insects limited. (royalsocietypublishing.org)
  • But new research is showing that climate change is expected to accelerate rates of crop loss due to the activity of another group of hungry creatures - insects. (washington.edu)
  • Increased pesticide applications, the use of GMOs, and agronomic practices such as crop rotations will help control losses from insects. (washington.edu)
  • To investigate how insect herbivory on crops might affect our future, the team looked at decades of laboratory experiments of insect metabolic and reproductive rates, as well as ecological studies of insects in the wild. (washington.edu)
  • Climate is a primary determinant for the growth of insects and crops. (omicsonline.org)
  • Garden ladybugs for controlling aphids and other harmful insects. (buglogical.com)
  • A single ladybug is capable of consuming up to 50 to 60 aphids per day but will also eat a variety of other insects and larvae including scales, mealy bugs, leaf hoppers, mites, and various types of soft-bodied insects. (buglogical.com)
  • So if there are a few resistant aphids, they will rapidly produce more resistant individuals, especially since the beneficial insects - the parasitoid wasps and lady beetles - will be decimated by the insecticide application. (croplife.com)
  • There were a number of accusations made by the Cubans that we had used insects to spread dengue fever and a whole bunch of crop pests," Lockwood said. (telegram.com)
  • Beetle banks are a simple way to attract and maintain a population of beneficial insects near your crops. (motherearthnews.com)
  • The impact of the predation by beneficial insects and spiders on aphids declined as distance from the beetle banks increased. (motherearthnews.com)
  • Movement of insects between Bt crops and refuges of non-Bt crops is essential for the refuge strategy because it increases chances that resistant adults mate with susceptible adults from refuges. (bioone.org)
  • It's an effective pest-management tool because insects emerge from their winter slumber in the soil to find the delicious crop they remember from last year gone. (hobbyfarms.com)
  • In one crop family's place is another crop family, not nearly as inviting to these insects. (hobbyfarms.com)
  • While your focus is often on the pest eating your crop, beneficial insects are often standing on the sidelines, ready to pounce. (hobbyfarms.com)
  • However, reviews of the literature indicate that insects that have a broad host range may not be reduced by diversifying crops (Andow 1991). (ufl.edu)
  • Research indicates that insects with a narrow host range, such as pests that only attack cruciferous crops, are more readily reduced in number when host crops are mixed with non-host crops (Andow 1991, Hooks and Johnson 2003). (ufl.edu)
  • Effective use of trap crops requires that insects concentrated on trap crops must be destroyed by spraying or tillage before they disperse to other plants. (ufl.edu)
  • The spring and summer of 2004 were very cool and wet in Manitoba, and as a result many insects were well below normal in their rate of development and damaged crops later in the season than is normal. (gov.mb.ca)
  • As pesticide sprays were no longer needed, beneficial predator insects such as ladybirds, spiders and lacewings could thrive and spill over onto neighbouring farms, where they ate aphids. (newscientist.com)
  • Rothamsted's John Pickett said the Chinese research is exciting because it shows that certain GM crops can spread beneficial insects to neighbouring farms. (newscientist.com)
  • Farmers have a keen eye, especially when it comes to spotting insects and diseases threatening their crops. (gc.ca)
  • Spotting the helpful insects that work in their favour by naturally controlling crop pests can sometimes be more challenging. (gc.ca)
  • For example, aphids are small, soft-bodied, pear-shaped insects that suck the sap out of plants. (gc.ca)
  • While farmers may not be aphid fans, lady beetles, damsel bugs, green lacewing larvae, and some other insects love them as tasty dinner treats. (gc.ca)
  • Agricultural Insecticides Product Application It is effective for hemiptera ( aphids , leaf hoppers, mealopsis, scale insects, scale worms, etc.Due to the different mechanism of the action of diamidine and the commonly used insecticides . (spintoband.com)
  • In Colorado, 4.7 million acres has had to be treated with insecticides to control the aphid since 1986. (colostate.edu)
  • The fungi has the potential to reduce the need for insecticides because treated seeds result in fewer aphids in the field. (innovationtoronto.com)
  • Field Evaluation of Different Insecticides for the Control of Mustard Aphid, Lipaphis erysimi (Kalt. (scialert.net)
  • The results on reduction percentages in the population of aphids indicated that all the insecticides had higher initial killing effects, however, Monophos was comparatively more toxic and persistent insecticide against this insect pest on mustard. (scialert.net)
  • Screening of insecticides for the control of mustard aphid Lipaphis pseudobrassicae Dav. (scialert.net)
  • Efficacy of different insecticides against mustard aphid, Lipaphis erysimi (Kalt. (scialert.net)
  • Evaluation of emulsifiable concentrate insecticides against mustard aphid on rape. (scialert.net)
  • A summary of registered insecticides for use in cereal crops for controlling the aphid vectors of barley yellow dwarf virus (BYDV) and aphid feeding damage. (wa.gov.au)
  • Insecticides can reduce the chance of an aphid infestation. (orkin.com)
  • The authors claimed the insecticides used to control soybean aphid was an important factor. (iastate.edu)
  • 3 In Ecuador, experiments were established for controlling aphids with insecticides. (croplife.org)
  • After the appearance of cereal aphids in Chile, Argentina and Brazil in the late 1960s, farmers sprayed insecticides several times per season. (croplife.org)
  • 6 Insecticide use was reduced significantly although insecticides have continued to be used on 95% of the wheat crops in northern areas of Brazil. (croplife.org)
  • Kill Aphid in Green House Isoprocarb 10% Greenhouse Fumigation Insecticides 50gram Solid Usage: 1. (spintoband.com)
  • Field reports from Minnesota (MN) indicate that cereal aphids are become more common and abundant in winter wheat and spring wheat in southern areas of MN, but not the central and northern areas of MN (Source: P. Glogoza & B. Potter, UMN, pers. (ndsu.edu)
  • more common and abundant in winter wheat and spring wheat in southern areas of MN, but not the central and northern areas of MN (Source: P. Glogoza & B. Potter, UMN, pers. (ndsu.edu)
  • The latest update from the AHDB's aphid news service says aphids are now easily found in winter cereals in southern parts of England, with BYDV infection suspected in both winter wheat and barley in the South and West. (fwi.co.uk)
  • With regards to crop stage of growth, fall rye and winter wheat crops are in the dough stage. (gov.mb.ca)
  • FHB has been observed in winter wheat in the southern portion of the state. (smallgrains.org)
  • Get all those right and chances are you'll have effective suppression of fusarium head blight (FHB) in your winter wheat crop. (realagriculture.com)
  • Lesotho lies adjacent to one of the largest wheat producing areas in South Africa, the Eastern Free State, where winter wheat and facultative types are cultivated under dry land conditions. (scirp.org)
  • Current management practices for winter wheat in South Africa include the use of resistant cultivars, which is the most economical management strategy for Russian wheat aphid. (scirp.org)
  • Winter wheat and fall rye are progressing well and fungicide applications on winter wheat are complete. (gov.mb.ca)
  • Researchers in Britain wanted to find out whether beetle banks could help reduce cereal aphids in winter wheat. (motherearthnews.com)
  • Resistant wheat cultivars were developed and provided control of D. noxia until 2003, when a new biotype (designated RWA2, as contrasted with the original biotype designation, RWA1) emerged and rapidly spread through dryland winter wheat-growing regions. (uvm.edu)
  • Winter wheat condition rated 79% good to excellent with 96% of the crop emerged. (unl.edu)
  • Some thrips feeding was noted on winter wheat near Sanford (C). (gov.mb.ca)
  • Winter wheat is now projected to be at the lowest plantings in a century, leaving many acres open for a summer crop. (agjournalonline.com)
  • 2016. Genotype imputation in winter wheat using first-generation haplotype map SNPs improves genomewide association mapping and genomic predictions of traits. (tamu.edu)
  • 2018. TAM 114 wheat, excellent bread making-quality hard red winter wheat cultivar adapted to the Southern High Plain. (tamu.edu)
  • 2018. Physiological Responses to Water Stress and Yield of Winter Wheat Cultivars Differing in Drought Tolerance. (tamu.edu)
  • 2017. Wheat curl mite resistance in hard winter wheat in the U.S. Great Plains. (tamu.edu)
  • 2015. Spectral reflectance models for characterizing winter wheat genotypes. (tamu.edu)
  • Russian wheat aphid ( Diuraphis noxia) is a serious pest of wheat in South Africa and can cause up to 80% yield loss on susceptible cultivars if not controlled. (springer.com)
  • Du Toit, F. (1988): A Greenhouse screening test for screening wheat seedlings for resistance to the Russian wheat aphid Diuraphis noxia (Homoptera: Aphididae). (springer.com)
  • Tolmay, V.L. (1995): The inheritance and mechanisms of Russian wheat aphid (Diuraphis noxia) resistance in two Triticum aestivum lines. (springer.com)
  • Walters, M.C. (1984): Progress in Russian wheat aphid (Diuraphis noxia Mord. (springer.com)
  • The Russian wheat aphid (Diuraphis noxia) is an aphid that can cause significant losses in cereal crops. (wikipedia.org)
  • Russian wheat aphid (Diuraphis noxia) is an international wheat pest and was first recorded in South Africa in 1978 in the Bethlehem area in the Eastern Free State. (scirp.org)
  • Russian wheat aphid (Diuraphis noxia (Kurdjumov)) has spread from its native area in central Asia [1] to all the major wheat producing countries in the world, becoming an international wheat pest. (scirp.org)
  • The Russian wheat aphid (RWA: Diuraphis noxia) feeding damage (RWAFD), referred to as "hot spots", can be traced, indentified, and isolated from uninfested areas for site specific RWA control using remote sensing techniques. (deepdyve.com)
  • Image of Russian wheat aphids ( Diuraphis noxia ). (washington.edu)
  • Here, multimodel synthesis was used to develop a spatiotemporal model predicting the density of a key pest of wheat, the Russian wheat aphid, Diuraphis noxia Kurdjumov). (uvm.edu)
  • The Russian wheat aphid, Diuraphis noxia (Kurdjumov) is a serious pest of small grains, such as wheat and barley. (uvm.edu)
  • The Russian wheat aphid, Diuraphis noxia (Kurdjumov) (Hemiptera: Aphididae) (RWA), is an important pest in the U.S. Western Plains, causing hundreds of millions of dollars of losses to wheat and barley production through reduced yields and insecticide application costs. (k-state.edu)
  • The warmer temperatures benefitted all crops, particularly the warm season crops including corn, soybeans and sunflowers. (gov.mb.ca)
  • Disease pressure is being monitored, with reports of blackleg lesions and sclerotinia in canola, bacterial leaf blight in soybeans and fusarium head blight in winter and spring wheat. (gov.mb.ca)
  • The summer rain and warmth that have kept Twin Cities lawns lush have had the same effect on the 17 million acres of corn, soybeans and wheat grown in the state. (twincities.com)
  • The rally also sweetened prices for Minnesota's biggest crops, corn and soybeans. (twincities.com)
  • There are above-trend yields in corn, in wheat and in soybeans. (twincities.com)
  • For both soybeans and spring wheat, 87 percent of state acres were in good or excellent shape. (twincities.com)
  • In 1945 corn was grown in rotation with soybeans, wheat and other crops. (greens.org)
  • Soybeans, wheat and barley make up the biggest part of his acreage. (agweb.com)
  • Soybeans, alfalfa and peas are legumes, so they produce nitrogen grown in a crop rotation. (agweb.com)
  • In the future, our team will release monitoring reports of pests and diseases for more crops including maize, rice, and soybeans to provide support for agricultural production," Huang said. (xinhuanet.com)
  • Darren Meyer, Hope, N.D. -- Meyer and his wife DeAnna raise wheat, soybeans and sunflower. (redorbit.com)
  • He was spraying Roundup on his soybeans on July 24, and had sprayed soybean aphids the same morning. (redorbit.com)
  • The co-chair of the Dodge County Farmers for Healthy Soil & Healthy Water talks about strip-cropping and interseeding cover crops at a field day in the summer of 2020. (no-tillfarmer.com)
  • In addition, non-crop plants such as weeds, cover crops, and habitat plantings can be combined in space and time to influence numbers of pest and beneficial arthropods on the main crop. (ufl.edu)
  • Living mulches grow for a long time with the main crops, whereas cover crops are incorporated into the soil or killed with herbicides. (wikipedia.org)
  • When cover crops are turned over into the soil, they contribute nutrients to the main crop so that less chemical fertilizer is required. (wikipedia.org)
  • Legume cover crops turn over nitrogen fixed from the atmosphere. (wikipedia.org)
  • Although leguminous cover crops have large biomass production and turnover, they are not likely to increase soil organic matter. (wikipedia.org)
  • Unfortunately, these cover crops also competed with corn for water which was particularly problematic during a dry period. (wikipedia.org)
  • The major contributors to these exports were wheat ($2.7 billion), barley ($905 million), canola ($710 million), oats ($83 million) and lupins ($77 million). (wa.gov.au)
  • Beet western yellows virus (BWYV) that has been renamed Turnip Yellows virus (TuYV) is an aphid-borne virus that causes yield and quality losses in canola. (wa.gov.au)
  • The decision to re-seed a canola crop can be a difficult one, and the reasons to re-seed can be numerous: wind damage or sandblasting, especially in sandier soils, insect damage from cutworms or flea beetles, or overall low plant density. (realagriculture.com)
  • Majority of the canola crop looks good to excellent. (gov.mb.ca)
  • Crop advisor casebook: Are cutworms collapsing this canola crop? (grainews.ca)
  • On June 19, Ryan, a Saskatchewan producer who farms south of Canora, called me to diagnose a problem in his canola crop. (grainews.ca)
  • Ryan's farm is situated on light, sandy soil with rolling topography, on which he grows wheat, oats and canola. (grainews.ca)
  • Flea beetles caused widespread damage in canola, and aphids were a concern in peas, cereals and canaryseed in many areas. (gov.mb.ca)
  • The aphid is attacking all wheat varieties this spring that were developed to be resistant to the original strain of the insect, especially in central and southern Colorado. (colostate.edu)
  • In particular, Prairie Red, a variety of wheat that has been resistant to the aphid, is consistently infested with the new aphid biotype, known as biotype B. (colostate.edu)
  • Prairie Red contains the same Russian wheat aphid-resistant gene as the other resistant varieties developed by Colorado State University: Ankor, Halt, Prowers 99 and Yumar. (colostate.edu)
  • All of these varieties continue to be resistant to the original aphid, known as biotype A. (colostate.edu)
  • Researchers are not sure if the new biotype adapted in response to resistant varieties of wheat or if it was introduced from another country, where different types of the insect exist. (colostate.edu)
  • Previous studies have suggested that wheat lines resistant in South Africa may be susceptible to Hungarian Russian wheat aphid. (springer.com)
  • Germplasm identified as resistant in this study could be utilised in wheat breeding programmes to develop Russian wheat aphid resistant cultivars. (springer.com)
  • Van der Westhuizen, A.J. & Pretorius, Z. (1995): Biochemical and physiological responses of resistant and susceptible wheat to Russian wheat aphid infestation. (springer.com)
  • Our results suggests that R.11143 was highly resistant, scoring a 3.1 damage rating compared to TX2783, and R.11259 which scored a 5.8 rating or moderate resistance to sugarcane aphid. (usda.gov)
  • This evaluation provides sorghum producers with options for planting sorghums resistant to sugarcane aphid which allows for more time to find and develop new sources of resistance. (usda.gov)
  • The researches that found D. noxia resistant strains of wheat were in 1996 but genotypes of aphids that were able to overcome these resistance strains began to appear in 2003. (wikipedia.org)
  • Research has been conducted to identify the specific genes that can be attributed to aphid resistance and the information marked to assist in breeding aphid resistant strain of wheat or barley. (wikipedia.org)
  • Understanding the genetic mechanisms underlying pest resistance is important for aphid-resistant cucumber varieties breeding. (frontiersin.org)
  • In this study, two parental cucumber lines, JY30 (aphid susceptible) and EP6392 (aphid resistant), and pools of resistant and susceptible ( n = 50 each) plants from 1000 F 2 individuals derived from crossing JY30 with EP6392, were used to detect genomic regions associated with aphid resistance in cucumbers. (frontiersin.org)
  • This study provides a certain theoretical basis of molecular biology for genetic improvement of cucumber aphid resistance and aphid resistant variety breeding. (frontiersin.org)
  • Introducing Russian wheat aphid resistant cultivars in Lesotho will improve overall yield and as a result food security. (scirp.org)
  • The most effective management option for Russian wheat aphid is the cultivation of Russian wheat aphid resistant wheat. (scirp.org)
  • But researchers hope their findings will spark a hunt for more local solutions, like selecting heat and pest resistant crops and rotating plantings rather than simply dumping more pesticides into the environment. (newvision.co.ug)
  • In this study, we looked at transgenic disease-resistant wheat ( Triticum aestivum ) and its effect on aphid-parasitoid food webs. (royalsocietypublishing.org)
  • We studied this on two disease-resistant GM wheat lines ( Triticum aestivum ), their respective non-transformed controls and a conventional line. (royalsocietypublishing.org)
  • aphid powdery mildew (France turned to the US for resistant germplasm). (greens.org)
  • RWA2 displaced RWA1 more quickly than expected, based on RWA2 advantage in RWA1-resistant wheat cultivars. (uvm.edu)
  • GMO giant Bayer CropScience has announced they will research drought resistant varieties of wheat without the use of genetic modification. (eatdrinkbetter.com)
  • Determination of the genetic basis of crop resistance to insect pests has been widely studied. (frontiersin.org)
  • And when pest metabolism increases, insect pests eat more food, which is not good for crops. (newvision.co.ug)
  • Asana Insecticide - a proven control tool for a wide range of insect pests in major field crops, vegetables, tree fruits and nuts - will be distributed in the U.S. by Valent U.S.A. (croplife.com)
  • the prevention and control of insect pests of wheat crops, including armyworm, aphid and wheat leaf bees, were sprayed with. (xpshou.com)
  • This project will provide many novel approaches to the study of the effects of climate warming on insect pests using a system insect-virus vector on wheat crop as a model system. (omicsonline.org)
  • Ladybugs are also called lady beetles or ladybird beetles, are natural enemies of many insect pests and it has been demonstrated that a single lady beetle may consume as many as 5,000 aphids in its lifetime. (buglogical.com)
  • The text comprises a brief description of the major wheat and triticale diseases, insect pests, nematodes, physiologic and genetic disorders, and mineral and environmental stresses. (usda.gov)
  • Many insect pests are witnessed to damage the growth of the plant and also damage the crops post-harvest or in storage, resulting in crop loss. (marketsandmarkets.com)
  • The marketability of the crops is also reduced due to the infestation caused by insect pests. (marketsandmarkets.com)
  • Growing early maturing variety of wheat reduce aphid attack [ 13 ]. (alliedacademies.org)
  • A warm and dry winter will aid aphid survival and BYDV spread while a cold and wet winter will reduce aphid survival and movement. (uky.edu)
  • Cygon 480 and Transform WG are registered for aphids in cereals. (fieldcropnews.com)
  • More information can be found in the Cereals Chapter of Field Crop Protection Guide, Publication 812 . (fieldcropnews.com)
  • By John Few, Tyler Mays, and David Drake - Texas A&M AgriLife Extension Agents - IPM Thrall, Hillsboro, and Commerce TX Rhopalosiphum padi commonly known as Bird cherry oat aphid (BCOA) is an insect pest of cereals and grasses that is readily appearing now in oat and wheat fields in Texas. (agrilife.org)
  • Delayed drilling of some spring cereals crops because of soggy soil conditions will likely result in later emergence, with seedlings facing a greater risk of aphid-transmitted diseases such as barley yellow dwarf virus (BYDV). (fwi.co.uk)
  • Barley yellow dwarf virus (BYDV) is an aphid-vectored disease that causes significant losses in cereals worldwide by reducing photosynthesis. (omicsonline.org)
  • Aphids were also reported on cereals in the St. Pierre (E) area. (gov.mb.ca)
  • Overall, aphid numbers were low on cereals in Manitoba. (gov.mb.ca)
  • The corn leaf aphid (CLA) is a bluish green insect with a velvety or fuzzy appearance. (uky.edu)
  • The decision to control aphids is especially important right now so a producer can decide to add an insecticide with their top-dress fertilizer. (no-tillfarmer.com)
  • Furthermore, selection of aphid-specific RNAi target genes would be essential for utilizing a plant-mediated RNAi strategy to control aphids via a non-toxic mode of action. (biomedcentral.com)
  • The study was conducted to check the effect of aphid density on wheat crop and its yield. (alliedacademies.org)
  • Mean spike length, number of grains per spike, 100 grains weight and yield kg/ha was significantly affected by the population density of an aphids. (alliedacademies.org)
  • Aphid density was low correlated with mean spike length but it was significantly correlated with number of grains per spike, 100 grains weight and yield kg per hectare. (alliedacademies.org)
  • Rhopalosiphum padi can reduce the yield up to 600 kg/hectares in wheat [ 12 ]. (alliedacademies.org)
  • The time of sowing of wheat before 25th November gave high yield and low aphid population [ 14 ]. (alliedacademies.org)
  • Aphids are major economic pests that cause yield losses worldwide, especially in temperate regions ( Blackman and Eastop, 2000 ). (frontiersin.org)
  • Aphid feeding in wheat results in qualitative and quantitative losses in flour yield. (wikipedia.org)
  • Delayed seeding or emergence will shorten the growing season for wheat, reducing yield potentials. (wa.gov.au)
  • Unpublished research provided by Dr. Kris Giles (OSU) and Dr. Norm Elliott (USDA-ARS) combined with studies on spring wheat from the Dakotas and Minnesota indicate that 20-40 BCOA per tiller causes 5-9% yield loss before wheat reaches the boot stage. (no-tillfarmer.com)
  • The aphid, Aphis gossypii Glover, is found in the majority of cucumber producing areas in China and is a serious pest, often causing severe yield loss and reduced quality in cucumber production. (frontiersin.org)
  • The potential yield tool uses seasonal rainfall and decile finishes, calculated from historical data, to calculate the maximum wheat yield possible in the absence of any other constraints. (wa.gov.au)
  • Russian wheat aphid may have a significant impact on wheat yield. (scirp.org)
  • To contribute to food security an increasing wheat yield potential is a high priority. (scirp.org)
  • In Europe, currently the most productive wheat producing region in the world, annual pest-induced yield losses could reach 16 million tons. (newvision.co.ug)
  • Elliott, N. 2012-03-25 00:00:00 The effects of insect infestation in agricultural crops are of major economic interest because of increased cost of pest control and reduced final yield. (deepdyve.com)
  • For a 2-degree Celsius rise in global mean surface temperatures, their model predicts that median losses in yield due to insect activity would be 31 percent for corn, 19 percent for rice and 46 percent for wheat. (washington.edu)
  • In some areas, producers are assessing crop stands and yield potentials to justify further input costs. (gov.mb.ca)
  • This stops the wheat fruiting and reduces a crop's yield. (mpi.govt.nz)
  • What is an acceptable yield is an individual decision, based in part upon a crop insurance company recommendation. (monroenews.com)
  • Without insecticide protection there was a 17% reduction in wheat yield. (croplife.org)
  • Wheat yield losses of 22% due to wild oat competition have been determined in experiments in Argentina. (croplife.org)
  • In the mid-1970s, wild oats were estimated to cause wheat yield losses of 15% in Argentina and Peru, 20% in Columbia and Ecuador and 30% in Chile. (croplife.org)
  • In this experiment, there was a significant advantage in terms of wheat yield to herbicide applied early in the crop cycle. (croplife.org)
  • It is hard to pay for a spray with soft white spring wheat prices and obtain a yield increase. (wsu.edu)
  • In fact, wheat yield can be reduced by 20-30% during an aphid outbreak. (gc.ca)
  • 2017. More recent wheat cultivars extract more water from greater soil profile depths to increase yield in the Texas High Plains. (tamu.edu)
  • In fact, the lack of extremely hot days this summer has probably been beneficial to the crop as far as yield is concerned," Ransom says. (redorbit.com)
  • Priaxor is fast-acting and delivers a high level of activity on more than 50 major diseases that can threaten yield and crop quality. (nmsu.edu)
  • These authors established Smooth Meadow-grass (Poa pratensis) and white clover (Trifolium repens) as living mulches since they did not cause reduction of yield corn (the accompanying main crop). (wikipedia.org)
  • Among cereal crops, wheat ( Triticum aestivum L.) is an important staple food for human. (alliedacademies.org)
  • Wheat ( Triticum aestivum L .) is an important and healthy cereal diet which is consumed as a staple food in many parts all over the world. (alliedacademies.org)
  • Wheat (Triticum aestivum L.) and brassica (Brassica compestris L.) are the important crops in barani areas. (bookwire.com)
  • Wheat (Triticum aestivum L.) is an important crop adapted to all agro-ecological zones of Lesotho. (scirp.org)
  • Our objectives were to (1) examine the use of spectral reflectance characteristics and changes in selected spectral vegetation indices to discern infested and uninfested wheat (Triticum aestivum L.) by RWA and (2) quantify the relationship between spectral vegetation indices and RWAFD. (deepdyve.com)
  • Wheat yellow leaf virus (WYLV) is a wheat (Triticum spp. (wikipedia.org)
  • barley (Hordeum vulgare) and wheat (Triticum aestivum). (ippc.int)
  • Other primary hosts include durum wheat (Triticum durum), field broom grass (Bromus arvensis), Elymus sp. (ippc.int)
  • cereal rye (Secale cereale), triticale (Triticum aestivum x Secale cereale) and various grasses in the Poaceae family, such as oats (Avena satvia), tall wheat grass (Agropyron elongatum) and Indian rice grass (Oryzopsis hymenoides). (ippc.int)
  • 1996) reported 55 viruses to which Triticum aestivum is susceptible, and Wiese (1987) described around 30 viruses that naturally infect wheat. (fao.org)
  • Since the voracious original strain of Russian wheat aphid entered Colorado in 1986, it has cost the state's 14,000 wheat farmers more than $132 million in crop losses and insecticide control efforts. (colostate.edu)
  • All Verified systemic insecticide for aphids suppliers & systemic insecticide for aphids manufacturers have passed our Business License Check, they can provide quality systemic insecticide for aphids products. (xpshou.com)
  • Insecticide for Aphids / Beetles / Thrips , CAS 91465-08-6 Description: Lambda cyhalothrin is a kind of non-systemic synthetic pyrethroid insecticide and acaricide which can be used to control a wide range of pests, which include aphids . (xpshou.com)
  • Insecticide treatments therefore should be carefully evaluated before application, especially because aphids have the abilityto reproduce parthenogenetically, which means an unfertilized egg can develop into a new individual. (croplife.com)
  • Manitoba Agriculture says soybean aphids continue to be a concern in some fields, with some producers having to apply insecticide. (pembinavalleyonline.com)
  • This insecticide is an option in corn and soybean in Iowa and restricting or removing the use could have potential implications for field crop pest management. (iastate.edu)
  • Management of the disease is mainly achieved through control of the vectors, the cereal aphids, by insecticide application. (croplife.org)
  • 4 Aphids are the most serious pests of wheat in Northwestern Mexico, nearly always requiring insecticide control in most of the wheat fields. (croplife.org)
  • 7 As a result, insecticide use for aphid control in wheat in Argentina has increased. (croplife.org)
  • The only treatment effective in reducing other cereal aphids was the insecticide, thiamethoxam. (k-state.edu)
  • Transgenic Bt crops with less insecticide use can promote population increases of predators in the whole agricultural landscape," says Wu. (newscientist.com)
  • Some wheat in the Winkler (C) area was sprayed with insecticide to control armyworms. (gov.mb.ca)
  • Disulfoton is an organophosphate aphicide and insecticide used to control a variety of harmful pests that attack different field and vegetable crops. (naturalpedia.com)
  • A similar model was produced for soybean aphids in 2009 and the resulting mobile app, released in 2011 by the University of Guelph, saved growers $20-30 per acre in insecticide costs while also reducing pesticide impacts on the environment. (gc.ca)
  • All systemic insecticide for aphids wholesalers & systemic insecticide for aphids manufacturers come from members. (spintoband.com)
  • We doesn't provide systemic insecticide for aphids products or service, please contact them directly and verify their companies info carefully. (spintoband.com)
  • Economic thresholds levels for aphid in wheat is justified, if 50 or more aphids are present in the seedling stage of the wheat. (alliedacademies.org)
  • There are still aphids in most fields but not at treatment thresholds, for the most part," Whitworth said. (croplife.com)
  • Soybean aphid is increasing in the central Red River Valley as of July 28, and were increasing or approaching economic thresholds. (redorbit.com)
  • A new strain of Russian wheat aphid has been identified in Colorado by Colorado State University, causing crop losses on farms that still are recovering from the drought. (colostate.edu)
  • Eleven European countries are predicted to see 75 percent or higher losses in wheat from pests, compared to current pest damage. (newvision.co.ug)
  • Researchers project that this activity, in turn, will boost worldwide losses of rice, corn and wheat by 10-25 percent for each degree Celsius that global mean surface temperatures rise. (washington.edu)
  • Just a 2-degree Celsius rise in surface temperatures will push the total losses of these three crops each year to approximately 213 million tons. (washington.edu)
  • We expect to see increasing crop losses due to insect activity for two basic reasons," said co-lead and corresponding author Curtis Deutsch , a UW associate professor of oceanography. (washington.edu)
  • Under those conditions, total annual crop losses would reach 62, 92 and 59 million tons, respectively. (washington.edu)
  • Pesticide use is up more than 1000 fold on corn since 1945 but corn crop losses increased from 3.5% to 12% in the same period of time. (greens.org)
  • They can spread plant diseases in the process and are a headache for many wheat, oat, and barley farmers in the West by causing significant crop damage and losses. (gc.ca)
  • In particular, they can better predict if the aphid-eaters will be able to keep the aphid population under control or if farmers will need to step in and protect the crop to prevent too much damage and economic losses. (gc.ca)
  • Weeds cause more total crop losses than any other agricultural pest (Lorenzi and Jeffery, 1987). (nmsu.edu)
  • Aphid also transmits the viruses in plant (vector) Rhopalosiphum padi transmits the Barley Yellow Dwarf Virus (BYDV) by direct feeding of the host [ 11 ]. (alliedacademies.org)
  • Metopolophium dirhodum , Rhopalosiphum padi and Sitobion avenae are common cereal aphids in Europe [ 5 ]. (royalsocietypublishing.org)
  • Fernholz's only insect problem is the soybean aphid. (agweb.com)
  • Topics include stink bugs, kudzu bug, caterpillars (like Old World bollworm and corn earworm), and even soybean aphid. (iastate.edu)
  • Temperature fluctuation, aphidicide use, weeds interruption, plant density and time of sowing of wheat are the factors that influence the high population of aphid. (alliedacademies.org)
  • The rain has been good for crops, but also for weeds. (twincities.com)
  • Weeds lower wheat yields directly by competing with the crop for moisture, light and nutrients. (croplife.org)
  • 8 Control of grass weeds in wheat demands accurate crop management strategies for improving herbicide performance. (croplife.org)
  • Determine efficacy of registered and non-registered pesticides for control of weeds in agricultural crops grown in northwestern New Mexico. (nmsu.edu)
  • Under a recent cooperative agreement, Plant Management Network ( PMN ) is now jointly managed by the American Society of Agronomy ( ASA ), Crop Science Society of America ( CSSA ), and American Phytopathological Society ( APS ). (plantmanagementnetwork.org)
  • Good agronomy can help a crop metabolize herbicides and reduce injury. (realagriculture.com)
  • If you are managing for high-yielding wheat, then protecting wheat from transmission of barley yellow dwarf virus is important. (deltafarmpress.com)
  • Barley yellow dwarf virus may already have been transmitted if you have high aphid numbers. (deltafarmpress.com)
  • Aphids are the principal vectors of barley yellow dwarf virus to wheat plants. (croplife.org)
  • 2 In the wheat growing areas of the Andean countries (Bolivia, Columbia, Ecuador and Peru) barley yellow dwarf virus is widely distributed and severe attacks occur every season. (croplife.org)
  • BYD is a virus disease that is moved from grasses and some crops to and within wheat fields by aphids. (uky.edu)
  • Their host plants are natural grasses including wheat, barley and rye. (orkin.com)
  • Leaf rust can affect wheat, triticale and many other related grasses. (usda.gov)
  • 9 In the 1970s, the development of new herbicides made possible the selective control of a broad spectrum of annual and perennial grasses in wheat. (croplife.org)
  • The Russian wheat aphid is restricted to grasses and it reproduces best and does most damage on cool-season grasses. (ippc.int)
  • The reproduction of the Russian wheat aphid on warm-season grasses is low but they can serve as potential host. (ippc.int)
  • Each type benefits the aphid in specific ways but also results in a specific type of BYDV spread. (uky.edu)
  • This movement brings BYDV into a wheat field. (uky.edu)
  • The bird cherry-oat aphid (BCOA) is the most common one found in wheat in the fall and winter and our most important vector of BYDV. (uky.edu)
  • Lots of bydv today in wheat and wbarley. (fwi.co.uk)
  • After its detection in the US in 1986, the Russian wheat aphid quickly became a major pest of wheat and barley. (wikipedia.org)
  • Speaking of crop pests, the U.S. was on the receiving end of an infestation in 1986, but no foul play was proved. (telegram.com)
  • Aphid is the key sucking pest of wheat and other crops. (alliedacademies.org)
  • It is the regular pest of wheat in Pakistan [ 5 ]. (alliedacademies.org)
  • Although present in Hungary, Russian wheat aphid is not an economically significant pest of wheat and this is possibly due to factors such as host plant resistance in Hungarian germplasm and the presence of effective natural enemies such as parasitoids, predators and entomopathogenic fungi. (springer.com)
  • Aphids are the major insect pest of wheat in Latin America. (croplife.org)
  • Russian wheat aphid is a major production pest of wheat and barley plants. (ippc.int)
  • Clark Neely, Small Grains Extension Specialist, College Station, 979-862-1412, [email protected] With harvest rapidly approaching, it is time to make the final management decisions that can maximize wheat revenue. (agrilife.org)
  • The Grains Research and Development Corporation has developed the FITE strategy against Russian wheat aphids. (planthealthaustralia.com.au)
  • Small grains: Wheat harvest was almost complete throughout the state. (lubbockonline.com)
  • Growers could be caught napping after aphids started to arrive in cereal and oilseed rape crops several weeks earlier than initially forecast. (fwi.co.uk)
  • Meanwhile, oilseed rape growers and agronomists are reporting large numbers of mealy cabbage aphids in crops, particularly in the South West and Midlands. (fwi.co.uk)
  • This site is a cooperative effort between Minnesota Association of Wheat Growers and the Minnesota Wheat Research & Promotion Council - Your Wheat Check-Off. (smallgrains.org)
  • The Minnesota Association of Wheat Growers, its agents, employees or contractors will not be liable to you for any damages, direct or indirect, or lost profits or data arising out of your use of information provided at this site, or information provided at any other site that can be accessed from this site even if informed of the possibility thereof. (smallgrains.org)
  • USDA said 90 percent of Minnesota growers reported their corn was in good or excellent condition, a level that earlier record-breaking crop years never reached. (twincities.com)
  • Fusarium head blight (FHB), caused by the fungus Fusarium graminearum, is a major concern for wheat growers across the Prairies. (realagriculture.com)
  • The Manitoba Wheat and Barley Growers Association (MWBGA) is welcoming two new directors and one returning director to its board, following an election process that took place this past fall. (pembinavalleyonline.com)
  • University of Arkansas System Division of Agriculture crop IPM extension faculty members partner with research scientists and county agents to develop and deliver needed information to growers, consultants, and industry representatives. (uaex.edu)
  • Sheer numbers frighten growers into spraying for these aphids. (wsu.edu)
  • Growers should consider getting their crop in as early as possible, to try to get out ahead of it, Lofton said. (agjournalonline.com)
  • He advised sorghum growers to factor in at least one $15 to $20 per acre pesticide application when budgeting what it will cost to grow the crop. (agjournalonline.com)
  • This trial assessed potential efficacy and benefits from various timings of fungicide application for managing powdery mildew, leaf rust and leaf spot diseases in wheat. (wa.gov.au)
  • Early seeded cereal crops are heading and producers are applying fungicide as conditions are favourable for fusarium head blight and leaf diseases. (gov.mb.ca)
  • Vavilov observed: These centers are also centers of greatest diversity of varieties and also a rich source of genetic alleles for resistance to specific crop diseases, having evolved varieties during millions of years through many different environments and diseases. (greens.org)
  • This booklet is designed as a quick guide for identifying wheat and triticale diseases in the field. (usda.gov)
  • Unless otherwise reported, the fungi included in this field manual cause diseases in bread wheat, durum wheat, and triticale. (usda.gov)
  • Identification of viral diseases affecting barley and bread wheat crops in Yemen. (cabi.org)
  • Among the biotic constraints on wheat production in Latin America, fungus diseases stand out by their incidence in humid years. (croplife.org)
  • In addition, wheat diseases are generally encouraged by such climatic conditions. (infonet-biovision.org)
  • BEIJING, June 19 (Xinhua) -- Chinese scientists said they have released the first remote sensing monitoring report on wheat pests and diseases globally, providing references for early warning and solutions. (xinhuanet.com)
  • Quantitative monitoring of major wheat pests and diseases, such as wheat rust, fusarium head blight, and aphids, was conducted, including spatial distribution, damage levels and areas. (xinhuanet.com)
  • The report was released on the website of the Crop Disease and Pest Monitoring and Forecasting System, which was developed by the research team to release remote sensing forecasting and monitoring of crop pests and diseases. (xinhuanet.com)
  • According to Huang Wenjiang, head of the team, remote sensing can effectively and objectively monitor the occurrence and development of crop pests and diseases on a large scale with the help of high-resolution satellites. (xinhuanet.com)
  • It helps prevent diseases and provides protection for more than 90 crops. (nmsu.edu)
  • TX2783 is a pollinator parent released by Texas A&M University with documented resistance to the sugarcane aphid. (usda.gov)
  • These trials provide the first step in identifying host plant resistance to the sugarcane aphid in sorghum. (usda.gov)
  • These sorghums will be a significant asset to producers who are looking for every feasible management practice they can use to manage sugarcane aphid epidemics. (usda.gov)
  • We evaluated ten sorghum lines that were near or in commercial release with the intent of identifying phenotypic expression of host-plant resistance to the sugarcane aphid. (usda.gov)
  • The relationship helps explain the degree of tolerance when sorghum is challenged with heavy sugarcane aphid feeding. (usda.gov)
  • Sorghum leaders and agronomists have also made progress fighting another foe that has deterred some farmers from growing sorghum in recent years: the sugarcane aphid, which is becoming more manageable as new research becomes available. (agjournalonline.com)
  • A new biotype of the Russian wheat aphid is not a completely unexpected development, but there was no way to prepare for it because we could not forecast how the aphid would develop and what sources of resistance would be effective,' said Frank Peairs, Colorado State University Cooperative Extension entomologist who, along with other experts at the university, has spent 17 years developing tactics to control the aphid. (colostate.edu)
  • Proceedings of a meeting of the Russian Aphid Task Team held at the university of the Orange Free State, Bloemfontein, 5-6 May 1982. (springer.com)
  • Tolmay V.L., Basky Z., Láng L. (2001) Assessing Russian Wheat Aphid Resistance in Hungarian and South African Germplasm. (springer.com)
  • The Russian wheat aphid is native to southwestern parts of Asia. (wikipedia.org)
  • Russian wheat aphids are one of the most significant pests on wheat in the world. (wikipedia.org)
  • Russian wheat aphid is established in Australia. (grdc.com.au)
  • Russian wheat aphid (RWA) (Photo 1) can damage cereal crops and reduce yields. (grdc.com.au)
  • Russian wheat aphid (RWA) is a high priority pest but it is manageable. (grdc.com.au)
  • Russian wheat aphid survives on a wide range of host plants and can reproduce rapidly. (grdc.com.au)
  • No monitoring or pest control is being done in Lesotho and at this stage there is very little information on the Russian wheat aphid resistance of wheat cultivars cultivated in Lesotho. (scirp.org)
  • In view of this it is important to monitor the distribution of Russian wheat aphid biotypes in Lesotho and determine the level of Russian wheat aphid resistance in local Lesotho wheat cultivars. (scirp.org)
  • These cultivars were screened in the field for Russian wheat aphid resistance. (scirp.org)
  • The predominant Russian wheat aphid biotypes in these areas were also determined. (scirp.org)
  • The Lesotho cultivar, Bolane had resistance against RWASA2 in the glasshouse, while Makalaote did not have any Russian wheat aphid resistance in either the glasshouse or field screenings. (scirp.org)
  • Russian wheat aphid has been included in the list of important international cereal pests. (scirp.org)
  • Russian wheat aphid adapts to changing environments and taking their ecology, distribution, virulence patterns, and variability into account is important in minimizing the gap between actual and attainable yields. (scirp.org)
  • This will also result in lower Russian wheat aphid pest pressure in the adjacent wheat production areas in the Eastern Free State, South Africa. (scirp.org)
  • The first authentic record of Russian wheat aphid outside its original area of distribution was in South Africa in 1978. (scirp.org)
  • There are currently four Russian wheat aphid biotypes known in South Africa. (scirp.org)
  • We've created a fact sheet so you will be able to recognise Russian wheat aphid if you see it. (planthealthaustralia.com.au)
  • Consider the case of a particularly dangerous pest, the Russian wheat aphid. (newvision.co.ug)
  • Russian wheat aphid has a great economic impact on cereal crops. (agriculture.gov.au)
  • There are two life cycle forms of the Russian wheat aphid: the holocyclic form which refers to sexual reproduction and allows the aphid to hibernate as eggs, and the anholocyclic form which refers to a life cycle based on asexual reproduction. (agriculture.gov.au)
  • Everyone needs to keep an eye out for Russian wheat aphid. (agriculture.gov.au)
  • Russian wheat aphid may occur on contaminated plant material, on machinery and other equipment. (agriculture.gov.au)
  • Find out more about Russian wheat aphid management . (agriculture.gov.au)
  • If the Russian wheat aphid spread to New Zealand, experts say it could cost us around $110 million over 10 years. (mpi.govt.nz)
  • The Russian wheat aphid likes the same kind of climates as wheat. (mpi.govt.nz)
  • The most obvious sign of Russian wheat aphids is a curled leaf with white stripes. (mpi.govt.nz)
  • Russian wheat aphids feeding on an oat leaf infected with yellow dwarf disease. (mpi.govt.nz)
  • Wheat awns trapped by flag leaf damaged by Russian wheat aphid feeding. (mpi.govt.nz)
  • The Russian wheat aphid is a small green insect with a football-shaped body about 2 mm in length. (orkin.com)
  • Russian wheat aphids are typically covered with a powdery wax coating. (orkin.com)
  • Russian wheat aphids prefer temperate terrestrial areas including savannas and grasslands. (orkin.com)
  • All states North and West of Texas now have the Russian wheat aphid established within. (orkin.com)
  • The Russian wheat aphid can reproduces both sexually and asexually. (orkin.com)
  • Non-North American Russian wheat aphids are known to mate in the fall. (orkin.com)
  • Russian wheat aphids generally take nine to 55 days to reach maturity and start reproducing. (orkin.com)
  • Russian wheat aphids can be found on the young leaves of wheat crops. (orkin.com)
  • Exotic pest alert: identification of Russian wheat aphid and associated crop damage. (cabi.org)
  • Russian wheat aphids did considerable economic damage, though the bugs were apparently imported accidentally along with the wheat. (telegram.com)
  • Victoria - On 9 June 2016, the presence of Russian wheat aphid was also confirmed in western Victoria at Kaniva, Nhill, Yaapeet and McKenzies Creek. (ippc.int)
  • Russian wheat aphid is a phloem feeder and requires moist/green plant material to survive. (ippc.int)
  • Acting on advice from the Consultative Committee on Emergency Plant Pests (CCEPP), the NMG agreed that it is not technically feasible to eradicate Russian wheat aphid from Australia. (ippc.int)
  • The NMG agreed that a national management plan for Russian wheat aphid be developed and implemented to manage the pest in Australia. (ippc.int)
  • Further information on the South Australian response to Russian wheat aphid can be found on PIRSA's website. (ippc.int)
  • Additional information on Russian wheat aphid can be found on Plant Health Australia's website. (ippc.int)
  • Department of Primary Industries and Regions South Australia (PIRSA) has confirmed that more than 20 properties are infested with Russian wheat aphid and this number is expected to increase. (ippc.int)
  • Trials include SAGIT break crop comparison, early sown wheat, CSIRO N efficiency, Russian Wheat Aphid and controlled traffic. (trybooking.com)
  • Field and forage crops, as well shelterbelts and farm infrastructure, were impacted by the storms. (gov.mb.ca)
  • Rangeland, pasture and forage crops improved with rains. (reporternews.com)
  • by John L. Few IV, IPM Agent in Southern Blacklands and Dr. David Kerns, Extension Entomologist in College Station Cotton and corn are major cash crops in Texas with a market value of over 3 million dollars combined in 2016. (agrilife.org)
  • Row crops: Storms damaged cotton, corn and sorghum in isolated areas of the Northern High Plains. (lubbockonline.com)
  • Producers in the Northern Low Plains reported aphid problems in sorghum. (lubbockonline.com)
  • Many farmers in the region need the extra time just to get their crop harvested and find out what their production will be, according to Jordan Shearer, who serves as executive director for sorghum grower groups in Colorado, Oklahoma and New Mexico. (agjournalonline.com)
  • Josh Lofton, a cropping specialist with Oklahoma State University, can still recall driving down to Corpus Christi, Texas, to identify the sorghum pest for the first time in 2013. (agjournalonline.com)
  • The aphids, which feed on the sap and reproduce rapidly, soon migrated northward across the sorghum belt, creating headaches for farmers used to growing what had been a dependable, low input, highly resilient crop. (agjournalonline.com)
  • Wet conditions this fall and winter, which are making it hard to get sorghum harvested and prevented wheat planting for many, could help boost sorghum acreage next year. (agjournalonline.com)
  • Because most of the population in North America consists solely of females, many aphids do not have the opportunity to mate at any time during their lives. (orkin.com)
  • Because there is no male aphid population in North America, female aphids rely on asexual reproduction to produce offspring. (orkin.com)
  • High population growth rates and a broad gramineae host range have allowed this aphid to successfully establish and become pestiferous across much of North America since its invasion in the mid-1980s. (uvm.edu)
  • Here is a Table of Preventable Loss estimates for bird cherry-oat aphids for expected yields of 30 to 50 bushels per acre, expected wheat prices of $3.00, $3.50, and $4.00 per bushel, and bird cherry-oat aphid numbers of 10-20, 20 to 40, and over 40 per tiller. (no-tillfarmer.com)
  • The Mission interviewed government and cooperative officials, and observed standing and harvested crops still in fields to assess yields. (fao.org)
  • A new study predicts that wheat yields will fall by as much as 30 percent by 2050 because of climate change. (eatdrinkbetter.com)
  • Unfortunately, living mulches compete for nutrients and water with the main crop, and this can reduce yields. (wikipedia.org)
  • For more than 35 years Greenbook® has been the trusted, go-to crop and turf chemical reference guide for farmers, ranchers, agronomists, retailers and crop advisers alike. (greenbook.net)
  • Once GM plants are introduced, farmers may be unable to grow non-GM crops. (greens.org)
  • Proponents argue that about half of the GM crops grown worldwide are produced by resource poor farmers. (bbc.com)
  • Early development of this crop was confined to large scale farms, but this pattern is changing with small farmers taking up wheat farming on smaller plots. (infonet-biovision.org)
  • Also, to meet the export demand for residue-free crops, farmers are implementing the use of biopesticide in combination with conventional chemicals. (marketsandmarkets.com)
  • The trend in the consumption of organic crops is also pushing the farmers to adopt biopesticides. (marketsandmarkets.com)
  • The demand to meet international export standards is urging the farmers to adopt biological crop protection inputs. (marketsandmarkets.com)
  • The team is aiming to improve corn, wheat and rice crops in order to help African farmers who cannot afford fertilizers. (inhabitat.com)
  • By tracking the population of these aphid-eaters, their feeding rates, and some other biological factors, researchers can accurately predict how many aphids farmers will have to deal with. (gc.ca)
  • Results from the five-year project published in the journal Scientific Reports on Thursday showed the GM wheat did not repel aphid pests in the field as hoped, despite initial success in laboratory tests. (eatdrinkbetter.com)
  • A field trial was carried out to know whether or not genetically-modified wheat can repel aphid pests. (topnews.in)
  • In 17 power-packed minutes, Peter laments the arrival of armyworm, soybean aphids and cereal leaf beetle. (realagriculture.com)
  • Armyworm is marching through the Ontario wheat crop. (realagriculture.com)
  • Today, Matt and Erin invite grad student, Mike Dunbar, to share his recent experience of true armyworm in a cornfield with a rye cover crop. (iastate.edu)
  • Aphid infestation on wheat also affects the flour that is made from infested wheat plants. (wikipedia.org)
  • Plants were grown in 40 plots (80 × 60 × 80 cm) arranged in two rows, each plot containing a separate central cylinder (26 cm diameter) in which 10 experimental wheat plants were grown. (royalsocietypublishing.org)
  • Those scenarios incorporated information based on where corn, rice and wheat - the three largest staple crops in the world - are currently grown. (washington.edu)
  • Anti GM protestors broke into the Hertfordshire field where the feisty crop is being grown with the intention of uprooting it and setting it alight, but their plans were thwarted when several bundles of wheat became aggressively self-aware. (newsbiscuit.com)
  • Wheat is the most widely adapted cereal, being grown from sea-level to altitudes of more than 4500 m, and from the equator to within the Arctic Circle. (infonet-biovision.org)
  • Wheat has been grown in East Africa since early 1900s and currently occupies the second highest production figures after maize. (infonet-biovision.org)
  • In tropical areas, wheat is best grown at higher elevations or in the cooler months of the year. (infonet-biovision.org)
  • an agricultural system in which a single crop (e.g. wheat) is grown to the exclusion of other crops. (thefreedictionary.com)
  • Estimated acres: Unless otherwise indicated, estimated acres grown in Manitoba in 2010 (shown in brackets under each commodity title) are from the Manitoba Crop Insurance Corporations 2010 Variety Market Share Report. (gov.mb.ca)
  • Many herbicides are approved for use on agronomic crops grown on medium- and fine-textured, high-organic soils. (nmsu.edu)
  • Aphid cause both direct and indirect damage by sucking the cell sap of phloem containing nitrogen contents while [ 9 ] the direct effect of aphid is promoted by directly sucking the cell sap and indirect effect is produced by secreting the honeydew that reduces the process of photosynthesis [ 10 ]. (alliedacademies.org)
  • Moreover, 100 or more aphids are present during the 3-6 inches of plant height and 300 or more aphids when the plant reaches 6-10 inches in height and the visible damage of aphids is on the top terminal portion of leaves. (alliedacademies.org)
  • Aphids are economically important pests that cause extensive feeding damage and transmit viruses. (frontiersin.org)
  • Aphid is one of the most serious cucumber pests and frequently cause severe damage to commercially produced crops. (frontiersin.org)
  • Crop damage, including lodging and stalk breakage, ranges from light to severe. (gov.mb.ca)
  • Salivary secretions play critical roles in aphid- host plant interactions and are responsible for damage associated with aphid feeding. (bioone.org)
  • Damage to crops from hail and strong winds range from light to severe with assessments continuing over the next several days. (gov.mb.ca)
  • It is anticipated that further crop damage will occur due to wet and saturated soil conditions. (gov.mb.ca)
  • Reports of high wind and some hail damage to crops. (gov.mb.ca)
  • Some reports of alfalfa weevil doing some damage to alfalfa crops. (gov.mb.ca)
  • The extent of crop damage caused by that hail event is not yet known. (gov.mb.ca)
  • Although it causes damage to the leaves and flowers of wheat and barley when feeding on them, its main impact is caused by a toxin it injects into the plant. (agriculture.gov.au)
  • This aphid causes characteristic damage: white to purple streaking and leaf-rolling on wheat and barley leaves. (agriculture.gov.au)
  • Research in the SEGS lab in this area focuses on variability of crop pest damage and predictions of changes in crop pests under different climate change scenarios. (uvm.edu)
  • Crop rotation-moving plant families around your growing area season to season-not only reduces insect-pest damage, it promotes soil health and decreases risk of plant disease. (hobbyfarms.com)
  • This reduces the time and energy the insect has to cause crop damage or deposit offspring, and in some instances it encourages the insect to migrate from the area. (ufl.edu)
  • Of these, only a few cause extensive damage and have an economic effect on wheat production. (fao.org)
  • The nature of the crop makes it harder to scout for Western bean cutworm in edible beans than in corn, yet easier to find feeding damage after leaf-drop. (country-guide.ca)
  • As a rule of thumb it needs to be about 50 o F for aphids to be active and temperatures below 30 o F result in increased aphid mortality. (uky.edu)
  • However, even at very low temperatures some aphids will survive. (uky.edu)
  • The aphids usually hang out at the base of the plant, either within the whorl or even underground at the base if night temperatures are quite cool. (fieldcropnews.com)
  • Once temperatures increase and the crop grows taller, they can be found on the stem and leaves of the plant. (fieldcropnews.com)
  • In addition to survivability in sub zero temperatures, the aphids are also capable of rapid cold hardiness (RCH) which allows an insect to develop protection against sudden sub freezing temperatures. (wikipedia.org)
  • In a paper published Aug. 31 in the journal Science , a team led by scientists at the University of Washington reports that insect activity in today's temperate, crop-growing regions will rise along with temperatures. (washington.edu)
  • Will inter-specific aphid interactions change with increased temperatures? (omicsonline.org)
  • The aphids also are able to survive in a variety of other habitats because of their ability to withstand a wide range of temperatures. (orkin.com)
  • During the right temperatures, an aphid can produce one to two daughter nymphs per day in a given month. (orkin.com)
  • If the crop is patchy or large areas die out, plant compensation may not be enough, and reseeding may be the best option for affected areas of the field - provided surface moisture and soil temperatures will allow for shallow seeding and rapid emergence of the reseeded crop. (grainews.ca)
  • Combined, these varieties account for about one-fourth of wheat acres in Colorado in 2003. (colostate.edu)
  • Do our current wheat varieties need different management to get the best performance from them. (wa.gov.au)
  • However, the observed effects were inconsistent between study years and the variation between wheat varieties was as big as between GM plants and their controls. (royalsocietypublishing.org)
  • We used five wheat lines belonging to three different spring-wheat varieties: Bobwhite, Frisal and Rubli. (royalsocietypublishing.org)
  • Successful wheat production depends on knowledge about suitable varieties for the area where wheat production is planned. (infonet-biovision.org)
  • Small, lime green, spindle-shaped aphid with short antennae. (greenbook.net)
  • A collaborative study was thus undertaken to evaluate a group of 45 Hungarian and 15 South African wheat cultivars in both countries using the same methodology. (springer.com)
  • Two local Lesotho wheat cultivars, Bolane and Makalaote were screened together with South African cultivars Elands, Matlabas, Senqu, PAN3379, PAN3118 and SST387, in the glasshouse against all four known biotypes that occur in South Africa. (scirp.org)
  • Study was conducted during 1988-91 at Faisalabad to determine the role of temperature, relative humidity, rainfall and wind velocity in fluctuating aphid density in wheat. (fao.org)
  • Wind velocity played a positive and significant role in fluctuating aphid density during 1990-91 (r = 0.798). (fao.org)
  • Regression analysis for 1988-89 and 1989-90 did not respond significantly showing 16.00 and 33.40 percent contribution in fluctuating aphid density. (fao.org)
  • Its body is flatter and longer than the bird cherry oat aphid. (uky.edu)
  • Bird Cherry Oat Aphids. (fieldcropnews.com)
  • Heath Sanders, OSU southwest area agronomist, reports of some wheat fields infested with bird cherry-oat aphids. (no-tillfarmer.com)
  • If 5-10% of bird-cherry oat aphids are mummies, more than 90% of the rest are also parasitized, and control is probably not warranted. (no-tillfarmer.com)
  • If aphids are mostly bird cherry-oat aphids, count the number of aphids on each of 25 randomly selected tillers across a zigzag transect of the field and note mummy activity. (no-tillfarmer.com)
  • Aphid population is high in Feb-March due to the favourable host available in the wheat field [ 15 ]. (alliedacademies.org)
  • The crop was sown by broadcasting method in the field. (alliedacademies.org)
  • The variety that was used in the wheat field was Faislabad-2008. (alliedacademies.org)
  • Make sure to scout throughout the field when determining the average, since aphids can start in patches and population levels can be overestimated if scouting is only done in these patches. (fieldcropnews.com)
  • The main concern with cereal aphids is that they vector barley yellow dwarf, especially if volunteer wheat was present in the field in the fall when the aphids arrived. (fieldcropnews.com)
  • By subscribing I agree to receive periodic communications from Field Crop News. (fieldcropnews.com)
  • Field Crop News" is an archive of information dedicated to the production of over 8.5 million acres of field crops in Ontario and a forum for which producers, researchers and industry personnel can share information and ideas. (fieldcropnews.com)
  • The crop technology team with the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA), faculty at the University of Guelph and Ontario field crop producers continually work together to find ways to improve field crop production. (fieldcropnews.com)
  • Check at least 10 plants in four areas of the field for aphid presence. (greenbook.net)
  • Aphids present on at least one in 10 plants in more than one area of the field. (greenbook.net)
  • My suggestion is to scout the field beforehand to determine if there are GROWING numbers of either aphid that could be of concern. (no-tillfarmer.com)
  • on mustard crop were carried out in the field. (scialert.net)
  • In general, most field crops throughout the region continue to advance nicely and are in relatively good condition. (gov.mb.ca)
  • You can imagine how quicky a very small population, even one aphid, can just explode over a whole field season. (newvision.co.ug)
  • Over 2 years, we studied different experimental wheat lines under semi-field conditions. (royalsocietypublishing.org)
  • The crops, nicknamed " whiffy wheat ," were successful in lab tests, but succumbed to aphids when trialed in the field. (rt.com)
  • While lab tests found the pheromone worked as a highly effective repellent, field tests revealed there was no difference between modified crops and conventional plants. (rt.com)
  • Recent field-scale tests of GMO wheat designed to repel aphids have shown the new GMO crop variety is nearly completely ineffective. (eatdrinkbetter.com)
  • Researchers at the John Innes Centre have applied to Defra for permission to carry out field trials of genetically modified (GM) wheat and a gene-edited brassica. (fwi.co.uk)
  • A strong within-field signal depicting aphid density was confirmed with low prediction errors. (uvm.edu)
  • We placed a known distribution of RWA1 and RWA2 aphids in the field for the winter at three sites across a latitudinal gradient (from northern Colorado to Texas) to test for a competitive advantage between these biotypes. (uvm.edu)
  • Lastly, they talk about the potential usefulness of UAVs for making management decisions in field crops. (iastate.edu)
  • Dominic is a field crop entomologist at North Carolina State University and has a wide range of responsibilities, for pest management including corn, soybean, cotton and wheat. (iastate.edu)
  • This morning, however, the wheat field appeared to be in a conciliatory mood. (newsbiscuit.com)
  • Crop advisor's casebook: What's causing the half-circle pattern in this wheat field? (grainews.ca)
  • However, low movement and fixed field locations favored rapid resistance evolution when some Bt crop fields were isolated from refuges. (bioone.org)
  • Confirming previous reports, results described here show that resistance can be delayed effectively by fixing field locations and distributing refuges uniformly to ensure that Bt crop fields are not isolated from refuges. (bioone.org)
  • A large swath of crop monoculture gives plant pests an open field to devour as they please. (hobbyfarms.com)
  • Intercropping is the practice of growing different crops in the same field. (ufl.edu)
  • Trap crops can be intercropped with the main crop, although they are more often planted on the perimeter of the field containing the main crop. (ufl.edu)
  • A wheat field from the Waskada (SW) area was reported to have wheat midge levels about 2-3 midge per plant, although in this case the wheat was too far advanced for the wheat midge to be of economical concern. (gov.mb.ca)
  • And GM field trials tell you only one thing more than GM trials in secure labs - how those crops interact with their environment. (liberalconspiracy.org)
  • In what is described as a major blow to genetic modification of crops, a variety of wheat developed in the UK to repel pests has failed in field trials. (mercopress.com)
  • The variety engineered to produce an odor that repels aphids, failed in the field test after it was successfully tested in the lab, proving a wide gap between lab and commercial application of the process. (mercopress.com)
  • Some higher levels of wireworms and damaged areas were reported from a wheat field in the Teulon (I) area. (gov.mb.ca)
  • up to 30 aphids per head were present in areas of the field. (gov.mb.ca)
  • On July 21st, a total of about 350 parasitized larvae were released in 2 fields of spring wheat near Swan River and 1 field of spring wheat near Minitonas. (gov.mb.ca)
  • The model developed by Dr. Tyler Wist, field crop entomologist with Agriculture and Agri-Food Canada and his team predicts aphid population growth. (gc.ca)
  • Genetically modified wheat has been found growing wild in a farmer's wheat field in Oregon. (eatdrinkbetter.com)
  • Field Crops Research 217: 11-19. (tamu.edu)
  • Researchers attempted to engineer a variety of wheat to emit an odor that deters aphids in the hope of reducing the amount of pesticides required by plants. (prn.fm)
  • Researchers at the University of Copenhagen have demonstrated that unique fungi strengthen the "immune systems" of wheat and bean plants against aphids. (innovationtoronto.com)
  • The researchers "treated" wheat and bean plants by applying fungal spores to seed, from which the plants were then germinated and cultivated. (innovationtoronto.com)
  • For now, it is not known as to why GM crop did not work as was expected by researchers. (topnews.in)
  • The transgenic line of Bobwhite ( Pm3b#1 ) carries the transgene Pm3b of hexaploid wheat, which confers race-specific resistance to wheat powdery mildew [ 6 ]. (royalsocietypublishing.org)
  • Transgenic crops will greatly accelerate the decline of biodiversity in the plant world. (greens.org)
  • The refuge strategy is designed to delay evolution of pest resistance to transgenic crops producing Bacillus thuringiensis Berliner (Bt) toxins. (bioone.org)
  • About 20 acres of spring wheat south of Minitonas was sprayed for cereal leaf beetle. (gov.mb.ca)