• larvae
  • This translated to higher numbers of predatory larvae on M. periscae -infested plants in two out of our three experiments, and more consistent control of this pest (78%-95% control across all stages of plant growth). (mdpi.com)
  • In a series of pulse-labeled radiotracer experiments, 24Na tracer fed to 4th instar larvae was not retained in the insect and reached nearly undetectable levels 6 h post ingestion. (usda.gov)
  • citation needed] Although the adults feed on nectar, pollen and aphid honeydew, the larvae are active predators and feed on aphids and other small insects. (wikipedia.org)
  • Although the larvae are effective as biological control agents, in open air environments the adult lacewings tend to disperse widely. (wikipedia.org)
  • In the case of insect hosts, vertical transmission often occurs as transovarial transmission, where the microsporidian parasites pass from the ovaries of the female host into eggs and eventually multiply in the infected larvae. (wikipedia.org)
  • pest control
  • Our study illustrates that suitability of a natural enemy for pest control may change over a crop cycle as the position of prey on the plant changes, and that prey preference based on within-plant prey location can negatively influence biological control programs in systems with pest complexes. (mdpi.com)
  • Farms work in partnership with birds, enjoying increased pollination and pest control. (tilth.org)
  • The calculated value of birds' pest-control actions for coffee farmers is as much as $125 per acre, or about one-eighth of the total crop value of $1,044 per acre. (tilth.org)
  • Biological pest control through introduction of tachinid flies from Africa and the Caribbean has been attempted, but those flies have failed to become established. (wikipedia.org)
  • Other integrated pest control methods that have met with success include spraying the crop with granulosis virus, releasing Trichogramma chilonis, releasing Cotesia flavipes and mechanical control with removal and destruction of egg masses. (wikipedia.org)
  • Murdoch's work in biological control has been instrumental in demonstrating that stability of parasitoid-host interactions in pest control can be achieved by non-equilibrium mechanisms. (wikipedia.org)
  • Because of its voracious appetite, the cane toad has been introduced to many regions of the Pacific and the Caribbean islands as a method of agricultural pest control. (wikipedia.org)
  • It was used as an agent of biological pest control against the noxious weed leafy spurge (Euphorbia esula), but never established a viable population. (wikipedia.org)
  • physiology
  • Currently he is studying the plasticity of insect digestive physiology by using nutrigenomics, immunocytohistology and enzymology to unravel the insect's physiological and biochemical responses to changes in its nutrition. (usda.gov)
  • Her research interests are primarily in insect physiology with an emphasis on how insects respond to and interact with their environment at both the cellular and whole organismal level. (usda.gov)
  • parasites
  • The evolution within the Clavicipitaceae is marked by interkingdom host jumping, and the range of this large and heterogeneous fungal group spans mutualistic plant symbionts, as well as parasites of plants, insects, and other fungi. (wikipedia.org)
  • Hemiptera
  • Other insect orders with mouthparts modified into anything like the rostrum and stylets of the Hemiptera include some Phthiraptera, but for other reasons they generally are easy to recognize as non-hemipteran. (wikipedia.org)
  • larval
  • While Fe radiotracer levels among larval tissues changed, the overall whole insect tracer levels did not decline from 6 - 60 h post ingestion. (usda.gov)
  • This is the first study of tissue Fe levels during viral infection of an insect, and clearly demonstrates that larval Fe homeostasis is substantially disrupted by baculoviral infection. (usda.gov)
  • Invasions
  • Guest Editors: Andrew Liebhold, Eckehard Brockerhoff and Martin Nuñez / Special issue on Biological Invasions in Forests prepared by a task force of the International Union of Forest Research Organizations (IUFRO). (springer.com)
  • population dynamics
  • After graduation, he headed to the University of Oxford to study insect population dynamics at the Bureau of Animal Population under Charles Sutherland Elton. (wikipedia.org)
  • birds
  • In 1991, an article published on organic agriculture's relationship with birds in the Journal of Pesticide Reform, cited how farms can be "rewarded by birds participation in the 'pest management' program[s]" and "provide insect control and eliminate the need for insecticide applications" in their role as on-farm pest managers. (tilth.org)
  • The boxes attracted insect-eating birds, which in turn consumed 2.4 times more insects than in control plots with sentinel prey but no boxes. (tilth.org)
  • Two hundred birds were imported from Trinidad in an attempt to control the number of lizards, especially the tree lizard (Anolis grahami) which had itself been introduced. (wikipedia.org)
  • infection
  • This finding will impact scientists working on how an insect resists infection because it begins to explain, along with other studies in the field, why some infections are fatal while others are not and how baculoviruses can be made more useful as a control measure in the field. (usda.gov)
  • A significant difference was found in the bound/free ratio of 59Fe (large protein bound Fe: small protein bound and/or free Fe) between control and baculovirus infected hemolymph at 60 h post-infection indicating that Fe released from damaged cells is taken into hemolymph not as free Fe. (usda.gov)
  • These components of overall insect innate immunity are present at any post-embryonic life stage without previous infection. (usda.gov)
  • mutualistic
  • After entering an insect, infective juveniles release an associated mutualistic bacterium from their gut which multiplies rapidly. (wikipedia.org)
  • density
  • Under certain conditions, diseases can multiply and spread naturally through an insect population, particularly when the density of the insects is high. (umaine.edu)
  • genus
  • The high nectar yield of the genus makes it very attractive to insects such as butterflies - including the endangered Karner blue (Lycaeides melissa samuelis) which visits introduced spotted knapweed - and day-flying moths - typically Zygaenidae, such as Zygaena loti or the six-spot burnet (Z. filipendulae). (wikipedia.org)
  • beetles
  • Important insect predators include lady beetles, ground beetles, rove beetles, flower bugs and other predatory true bugs, lacewings and hover flies. (umaine.edu)
  • The extensive work conducted on ladybird beetles provides a good basis for examining insect predator-prey dynamics, and this eloquent book is an excellent synopsis of the research. (barnesandnoble.com)
  • The five major categories of insects considered in this article are flour beetles, the drugstore beetle, the sawtoothed grain beetle, the Indian meal moth and fruit flies. (wikipedia.org)
  • small
  • It is almost omnivorous, and hunts like a shrike or flycatcher, waiting on an open perch high in a tree to sally out to catch insects in flight, or to pounce upon rodents and similar small vertebrates. (wikipedia.org)
  • They are small insects, reaching a length of about 1/8 of an inch. (wikipedia.org)