International Journal of Tropical Insect Science (2015) 35, 132-136

Shaaban Abd-Rabou and Alvin M. Simmons (2015)
Infestation by Bemisia tabaci (Hemiptera: Aleyrodidae) and incidence of whitefly-transmitted viruses after the application of four biorational insecticides in some crops in Egypt
International Journal of Tropical Insect Science 35 (3), 132-136
Abstract: Bemisia tabaci (Gennadius) is a global insect pest that transmits many important plant viruses. A field study was conducted on infestation by B. tabaci and incidence of whitefly-transmitted viruses after the application of selected foliar and seed-treated biorational insecticides in seven vegetable and row crops in Egypt. Three foliar insecticides (Actara, Biofly and Neemix) and a treated check (Actellic) were assayed across three weeks on seedlings and mature plants, and two seed-treated insecticides (Actara and Gaucho) and a treated check (Aldicarb) were assayed on seedlings. All of the foliar insecticides led to 60–100% reductions in whitefly infestations in each crop. Biofly and Neemix were the least efficacious insecticides. Incidences of whitefly-transmitted viruses were reduced in each insecticide-treated plot with seedlings of four crops; however, no effect on virus incidence was observed in the experiment with mature plants. Crops of cucumber, eggplant, squash and tomato displayed symptoms characteristic of Cucumber vein yellowing virus, Squash leaf curl virus or Tomato yellow leaf curl virus; however, no symptoms of whitefly-transmitted viruses were observed in green bean, potato or sugar beet. The results show that several biorational insecticides may suppress whitefly populations in seedlings to delay whitefly-transmitted viruses in some vegetable crops in Egypt.
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Link to article at publishers website
Database assignments for author(s): Alvin M. Simmons, Shaaban Abd-Rabou

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bemisia tabaci	Eggplant (Solanum melongena)	Egypt
	Bemisia tabaci	Cucumber (Cucumis sativus)	Egypt
	Bemisia tabaci	Squash/pumpkin (Cucurbita)	Egypt
	Tomato yellow leaf curl virus		Egypt
	Squash leaf curl virus		Egypt
	Cucumber vein yellowing virus	Cucumber (Cucumis sativus)	Egypt