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Showing 1 to 20 of 30 for “"thrips"”.
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Abundance and Species Diversity of Thrips (Thysanoptera: Thripidae) in Cotton, Soybean, and Peanut in Southeast Virginia, and Evaluation of Cyantraniliprole for Thrips Management
Thrips are major agricultural pests throughout much of the United States. More information is needed about sampling methods, management practices, and insecticide susceptibility to help better control this pest. A two year survey was conducted to determine the species present in southeast Virginia …
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Factors affecting the response of thrips to an olfactory cue
Some thrips (Order Thysanoptera) are key pests of many greenhouse and outdoor crops worldwide. Biological attributes such as polyphagy, rapid reproduction, cryptic behaviour and insecticide resistance make them particularly difficult to manage. Because a large number of insects utilize plant …
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Movement patterns and phenology of the tobacco thrips, Frankliniella fusca (Hinds), in Virginia peanuts
… and intra-field movement patterns of the tobacco thrips, Frankliniel/a fusca (Hinds), in peanuts were studied in 1990 and 1991 in the City of Suffolk, Virginia. The long-term goal was to improve our understanding of the role of tobacco thrips in the epidemiology of tomato spotted wilt virus in …
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An Analysis of a Generic Complex of New World Plant-Litter Thrips (Thysanoptera: Phlaeothripidae: Glyptothripini)
Made available in DSpace on 2014-12-14T07:04:06Z (GMT). No. of bitstreams: 1 8004172.pdf: 13398388 bytes, checksum: da8e85fba90d7fa13cf747cb20d2e6b8 (MD5) Previous issue date: 1979
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Monitoring and management of thrips populations in vegetables, row crops, and greenhouse crops in Virginia
Thrips are pests in a variety of crops and are responsible for millions of dollars in damage worldwide. In Virginia there are a few key thrips species that cause a large portion of damage to both vegetable and floricultural crops. Three prominent pests include Frankliniella tritici (Fitch), …
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Characterizing global gene expression and antiviral response in Frankliniella occidentalis infected with Tomato spotted wilt virus
Frankliniella occidentalis, the western flower thrips, transmits the plant-pathogenic virus, Tomato spotted wilt virus (TSWV), through a circulative-propagative transmission strategy. The virus infects and replicates in the insect, traversing membrane barriers as it moves from the midgut to the …
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The effectiveness of biological control of Frankliniella occidentalis in prevention of the spread of Tomato spotted wilt virus
… versus chemical control for western flower thrips, Frankliniella occidentalis, as a means of reducing the spread of Tomato spotted wilt virus (TSWV) on tomatoes. To compare efficacy of different thrips management tactics for reducing TSWV incidence, tomatoes were subjected to one of three …
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Biology and ecology of the predatory mite Iphiseius degenerans (Berlese)(Acari: Phytoseiidae)
… used, amongst others, against spider mite and thrips infestations in greenhouse crops. Iphiseius degenerans is used commercially in Belgium for thrips control in greenhouse crops since 1994. A survey of the literature revealed that information on I. degenerans is relatively scarce. For …
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Leptothrips mali (Fitch): a potentially important predator in Virginia apple orchards
… in Virginia apple orchards and predators (Leptothrips mali, Haplothrips subtilissimus, Orius insidiosus, Stethorus punctum, Dereacoris nebulosus, Chrysopa spp.) were monitored during 1977-78 under 3 reduced pesticide programs. The pesticide program with phosalone and Dikarᴿ as its principal …
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Relationships among spread-sticker application, blossom cap retention, berry scarring, thrips populations, and Botrytis bunch rot in 'Chardonnay' grapes, and a survey of pesticide use and pest severity in Virginia vineyards in 1990 and 1991
… reduced Botrytis bunch rot. The role of flower thrips <i>Frankliniella tritici</i> (Fitch) in causing scarring and in increasing Botrytis rot in Chardonnay grapes was explored in 1992. The insecticide methomyl (Lannate®) at a labeled rate (0.9 ml per 377 ml water per vine), or water (control), …
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Bionomics of the anthocorid, Orius insidiosus (Say) in Virginia apple orchards
… on other beneficial species including predaceous thrips and mites. O. insidiosus falls prey to a number of other general orchard predators, particularly spiders, chrysopids, and other predaceous Heteroptera. During 1977-1978, the population dynamics of O. insidiosus along with a complex of …
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Death by a thousand cuts: the role of pesticides, predators, and habitat patch characteristics on wild bee and insect communities
… Coleoptera), bees (Clade: Anthophila), and thrips (Order: Thysanoptera) in a fragmented landscape. Most bee species nest below ground in soils where some pesticides, such as the neurotoxic neonicotinoids, have long half-lives and can accumulate in agrolandscapes. However, risk assessments …
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Inheritance of Resistance to Tomato Spotted Wilt Virus in Lettuce (Lactuca Sativa L.)
Tomato Spotted Wilt Virus (TSWV), a thrips transmitted virus disease with a wide host range, has become a major limiting factor in lettuce production in Hawaii. Symptoms of this disease on lettuce are necrotic spotting of young leaves, stunting, wilting, and death of the plant. The large host range …
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Pollen digestion in flower-feeding Scarabaeidae : protea beetles (Cetoniini) and monkey beetles (Hopliini)
… pierce the grain and suck out the contents (thrips and biting-flies) or cause the grain contents to leach out an imbibe the leachate (butterflies and the eucalupt nectar fly). Pollen-feeders that can ingest the grains (bees, syrphid flies, rodents, marsupials, bats and birds) may use osmotic …
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ΟΙΚΟΛΟΓΙΑ ΕΔΑΦΙΚΩΝ ΑΡΘΡΟΠΟΔΩΝ ΝΗΣΙΩΤΙΚΩΝ ΟΙΚΟΣΥΣΤΗΜΑΤΩΝ ΦΡΥΓΑΝΙΩΝ ΚΑΙ ΥΠΟΒΑΘΜΙΣΜΕΝΟΥ ΜΑΚΙ (Ν. ΝΑΞΟΣ-ΚΥΚΛΑΔΕΣ)
… GROUPS OF TRUE FLIES, PSEUDOSCORPIONS, SPIDERS, THRIPS BRISTLE-TAILS AND PSOCIDS DOMINATE AND CHARACTERIZE THE TWO BIOTOPES. THE COMMUNITIES OF SOIL ARTHROPODS WERE DISTINGUISHED BY STABILITY AND HAVE INTENSE MEDITERRANEAN CHARACTERISTICS, AS MUCH ON THE LEVEL OF FAUNA COMPOSITION, AS IN THE …
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