Effect of Common Insecticides on Emergence and Parasitism of Trichogramma chilonis Ishii (Hymenoptera: Trichogrammatidae)
Four insecticides commonly used in the management of cotton pests were field tested for their deleterious effects on an effective egg-parasitoid, Trichogramma chilonis Ishii. Endosulfan (0.05%) proved to be safer than quinalphos (0.05%), monocrotophos (0.04%) and fenvalerate (0.04%). Both, the emergence and parasitism of T. chilonis decreased gradually as the time increased from 12 to 72h in all treatments including control.
Cotton, Corcyra cephalonica, Helicoverpa armigera, Insecticides, Trichogramma chilonis.
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