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

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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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
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

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