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  • crop
  • Once the seeds are filling the pod cavity full yield potential has occurred, and soybean aphids are no longer an economic threat to the crop. (gov.mb.ca)
  • Among different crop legumes such as pigeon pea, chickpea, cowpea, soybean and common bean, hyacinth bean also serves as a significant source of nutrition for both tropical and temperate regions and execute an imperative function in fixing biological nitrogen in agriculture. (springer.com)
  • Our crop survey efforts in MN have shifted to soybean. (umn.edu)
  • It has been found experimentally that interplanting a crop susceptible to aphid attack with a flowering plant such as the dandelion, Taraxacum officinale, encouraged predation on aphids because the spotted lady beetles were attracted to their pollen-rich flowers. (wikipedia.org)
  • The virus can be introduced into a susceptible field crop by aphids from a nearby reservoir (infected perennial hosts like clover, alfalfa or perennial peanuts) and then is spread further into the field by aphids. (wikipedia.org)
  • buckthorn
  • Soybean aphids overwinter as eggs on their primary hosts, buckthorn (Rhamnus spp. (wikipedia.org)
  • Eggs begin to hatch into fundatrices when temperatures in the spring reach 10 °C (50 °F).[citation needed] Colonization of buckthorn by soybean aphids in the spring can lead to curling of leaves and twigs. (wikipedia.org)
  • Insects
  • Aphids, the tiny insects that can overwhelm soybeans and reduce yields, are appearing earlier than in previous years. (futurity.org)
  • The insects reproduce quickly-up to 15 generations in a single growing season-so 250 aphids on a plant can multiply into 650 in a hurry. (futurity.org)
  • Wooly aphids (Eriosomatinae) and other sucking insects are often vectors of transmission for powdery mildew, and other infectious diseases. (wikipedia.org)
  • Overall yield gains are not expected from neonicotinoid seed treatments for soybean insect pests in the United States, and foliar insecticides are recommended instead when insects do reach damaging levels. (wikipedia.org)
  • insecticides
  • Ultimately, this new tool will help reduce production costs by reducing the number of foliar insecticides being applied to soybean. (blogspot.com)
  • midgut
  • These vertically transmitted bacteria live within specialized bacteriocytes, aggregated to form the organ-like bacteriome located near the aphid midgut ( 6 , 8 ). (jgenomics.com)
  • The midgut bacteria of susceptible larvae may be required for B. thuringiensis insecticidal activity. (wikipedia.org)
  • Plant
  • Soybean plant introduction (PI) 200538 has strong resistance to the aphid. (environmental-expert.com)
  • Detached leaf and whole plant assays for soybean aphid resistance: differential responses among resistance sources and biotypes. (semanticscholar.org)
  • As the infested plant ages, soybean aphids remain on leaves near the top of the plant. (wikipedia.org)
  • Damage to a soybean plant during this initial stage is a result of stylet-feeding and can include curling and stunting of leaves and twigs, physiological delays, and underdevelopment of root tissue. (wikipedia.org)
  • As colonies expand and temperatures increase, soybean aphids move toward lower portions of the soybean plant. (wikipedia.org)
  • A few aphids on a plant won't cause appreciable damage, but if the population reaches around 250 aphids per plant, Hodgson recommends farmers consider treating their fields with a pesticide. (futurity.org)
  • Daren Mueller, an assistant professor of plant pathology and microbiology, says Iowa soybeans have suffered environmental stress in recent years that leaves them more susceptible to pests and disease. (futurity.org)
  • Aphid population growth rate was measured for each caged plant for 9‐12 d after infestation. (iastate.edu)
  • 1. A plant of soybean variety XB15R14R2, wherein a sample of seed of said variety has been deposited under ATCC Accession No. (patentsencyclopedia.com)
  • 5. A method of producing soybean seed, wherein the method comprises crossing the plant of claim 1 with itself or a second soybean plant. (patentsencyclopedia.com)
  • 6. The method of claim 5, wherein the method is further defined as comprising crossing the plant of soybean variety XB15R14R2 with a second, distinct soybean plant to produce an F 1 hybrid soybean seed. (patentsencyclopedia.com)
  • 11. A plant produced by introducing a single locus conversion into soybean variety XB15R14R2, or a selfed progeny thereof comprising the single locus conversion, wherein the single locus conversion was introduced into soybean variety XB15R14R2 by backcrossing or genetic transformation and wherein a sample of seed of soybean variety XB15R14R2 has been deposited under ATCC Accession No. (patentsencyclopedia.com)
  • 5. A soybean plant that expresses all of the physiological and morphological characteristics of soybean variety A1026201, wherein a sample of seed of said variety has been deposited under ATCC Accession No. (patentsencyclopedia.com)
  • 20. A method of producing a commodity plant product comprising collecting the commodity plant product from a plant of soybean variety A1026201, wherein a sample of seed of said variety has been deposited under ATCC Accession No. (patentsencyclopedia.com)
  • If this virus spreads in perennial peanuts in the Southern USA, this plant could become a reservoir of the virus and increase its spread to field peanut and soybean via aphid transmission. (wikipedia.org)
  • http://www.freshfromflorida.com/Divisions-Offices/Plant-Industry/Science/Florida-Plant-Viruses-And-Their-Inclusions/Florida-Plant-Viruses-And-Their-Inclusions/Peanut-Mot http://www.freshfromflorida.com/Divisions-Offices/Plant-Industry/Science/Florida-Plant-Viruses-And-Their-Inclusions/Florida-Plant-Viruses-And-Their-Inclusions Demski, J.W. (1975) Source and Spread of Peanut Mottle Virus in Soybean and Peanut. (wikipedia.org)
  • Aphids penetrate plant surfaces where they often reside and provide a host of potential inoculants through physical, digestive or fecal secretions. (wikipedia.org)
  • Aphids are often an indicator of other potential plant problems. (wikipedia.org)
  • Aphids pick up the plant virus during probing and transmit it non-persistently to other hosts for a period of time up to a few hours after contact. (wikipedia.org)
  • pests
  • Erin Hodgson, an associate professor of entomology at Iowa State University, says she's received reports that producers in Wisconsin, Minnesota, and northeastern counties in Iowa are treating soybeans for aphids, about two weeks ahead of when the pests became problematic last year. (futurity.org)
  • hosts
  • It has one of the broadest host ranges of any aphid in the world, where they both hosts on dicots and monocots. (wikipedia.org)
  • The soybean aphid possesses a heteroecious holocyclic life cycle, which means the insect alternates hosts and undergoes sexual reproduction for at least part of its life cycle. (wikipedia.org)
  • Thus, the recommended approach to control this virus in peanuts and other susceptible hosts such as soybean is the planting of PeMoV-free seed. (wikipedia.org)
  • Sometimes, the virus can be recognized by the intensity of symptoms caused in susceptible hosts. (wikipedia.org)
  • After the virus is found in fields, aphids could potentially spread it to new hosts before the pesticides eliminate the aphids. (wikipedia.org)
  • typically
  • In these early colonies, soybean aphids are typically grouped on tender, young leaves of soybean plants. (wikipedia.org)
  • Typically wooly aphids in sub temperate climates precede and are an indicator of various infections, including Powdery mildew. (wikipedia.org)
  • Milk is diluted with water (typically 1:10) and sprayed on susceptible plants at the first sign of infection, or as a preventative measure, with repeated weekly application often controlling or eliminating the disease. (wikipedia.org)
  • For soybeans, neonicotinoid seed treatments typically are not effective against the soybean aphid, because the compounds break down 35-42 days after planting, and soybean aphids typically are not present or at damaging population levels before this time. (wikipedia.org)
  • sorghum
  • As of 2013[update] neonicotinoids have been used In the U.S. on about 95 percent of corn and canola crops, the majority of cotton, sorghum, and sugar beets and about half of all soybeans. (wikipedia.org)
  • Hodgson
  • Hodgson says she can't say for certain why aphids appear to be running ahead of schedule, but she recommends farmers stay vigilant. (futurity.org)
  • grown
  • An interesting study of the spread of this virus in Georgia showed that the virus moved from infected peanut plants to nearby soybean fields and was only present in soybeans in areas where peanuts were also grown. (wikipedia.org)
  • temperatures
  • In the first experiment, I grew soybean seedlings to the V-0 stage at 25°C and then conditioned them for 0, 3 or 5 days at 20° or 30°C before infesting with a single first instar SBA at each of the two experimental temperatures. (k-state.edu)
  • I predicted that SBA fitness would be lower at all temperatures on resistant soybeans, but the magnitude of differences between cultivars would not be uniform across temperatures. (k-state.edu)
  • Cotton
  • In 1995 canola with modified oil composition (Calgene), Bt maize (Ciba-Geigy), bromoxynil-resistant cotton (Calgene), Bt cotton (Monsanto), glyphosate-resistant soybeans (Monsanto), virus-resistant squash (Asgrow), and additional delayed ripening tomatoes (DNAP, Zeneca/Peto, and Monsanto) were approved. (wikipedia.org)
  • responses
  • Four aphid responses were evaluated: preimaginal development, survival to adulthood, number of progeny produced, and adult longevity. (k-state.edu)
  • fields
  • Management decisions are further complicated in some fields as the soybean move towards the R6 growth stage. (gov.mb.ca)
  • It is definitely time to be monitoring your soybean fields for aphids if you haven't already begun. (umn.edu)
  • Fields from west central to south central areas have aphids but sampled fields had tolerable numbers below threshold. (umn.edu)
  • Any pie charts that begin to show orange and red indicate those fields had plants with aphids into the 100's. (umn.edu)
  • In 2016, fields in Polk County, MN required 4x the bifenthrin and 28x the lambda-cyhalothrin for control when compared to a lab-reared, susceptible colony of soybean aphids. (umn.edu)
  • threshold
  • As a nominal threshold, it has been suggested that control may be justified when at least 10-20% of the stems are infested with a cluster of aphids in flowering to early pod stages. (gov.mb.ca)