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Genetically improved potatoes: protection from damage by Colorado potato beetles
Russet Burbank potato plants have been genetically improved to resist insect attack and damage by Colorado potato beetles (Leptinotarsa decemlineata (Say)) by the insertion of a cryIIIA gene encodingExpand
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Effects of Insecticides on Populations of the Vegetable leafminer and Associated Parasites on Summer Pole Tomatoes
Studies were conducted to determine the feasibility of using a biotic larvicide or an ovicide as alternatives to methomyl for control of lepidopterous pests on summer plantings of fresh marketExpand
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Insecticide Resistance of Diamondback Moth (Lepidoptera: Plutellidae) in North America
Following widespread reports of control failures of the diamondback moth, Plutella xylostella (L.), in North America during 1987, a cooperative project was established in 1988-1989 in which 41Expand
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Polymerase chain reaction detection of viruliferous Bemisia tabaci (Homoptera: Aleyrodidae) with two tomato-infecting geminiviruses.
The sweetpotato whitefly, Bemisia tabaci (Gennadius), is an important pest worldwide. A new biotype of sweetpotato whitefly, biotype B, causes damage by direct feeding and by the transmission ofExpand
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Enhancing Overwintering Mortality of Colorado Potato Beetle (Coleoptera: Chrysomelidae) by Manipulating the Temperature of Its Diapause Habitat
Experiments were conducted to evaluate the potential of using an artificially mulched trap crop to arrest adult dispersal of Colorado potato beetle, Leptino-tarsa decemlineata Say, in the fall in aExpand
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Effects of Varying Twospotted Spider Mite Infestation Levels on Strawberry Yield
Varying infestation levels of Tetranychus urticae Koch were created on strawberry plants by application of cyhexatin at density treatment levels of 0–5, 25, 50, 75, and 100 mites/leaflet, andExpand
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Morphological responses of strawberry leaves to infestations of twospotted spider mite.
Injury to strawberry leaves caused by various infestation levels of Tetranychus urticae Koch was studied. Reduction in leaflet chlorophyll content by twospotted spider mite feeding was more evidentExpand
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Threshold Temperature and Heat Unit Summations for Seedcorn Maggot Development under Controlled Conditions
The development of the seedcorn maggot, Hylemya platura (Meigen) (Diptera: Anthomyiidae), was studied in controlled-temperature chambers, and threshold temperatures and heat unit summations for egg,Expand
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Effect of Varying Potato Leafhopper (Homoptera: Cicadellidae) Population Densities on Snap Bean Yield
Varying infestation levels of potato leafhopper, Empoasca fabae (Harris), were created on commercial snap bean ( Phaseolus vulgaris (L.)) cultivars by application of insecticides at predeterminedExpand
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Spider Mite Interactions with Photosynthesis, Transpiration and Productivity of Strawberry
Studie were conducted in 1978 and 1979 to evaluate the effects of varying twospotted spider mite populations on photosynthesis, transpiration, and productivy of strawberry plants under fieldExpand
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