Toxicity and residual effect of selected insecticides against Bemisia tabaci and Orius tristicolor

The whitefly Bemisia tabaci is a global pest, well-known for its capacity to transmit begomoviruses during sap sucking (<24h). Chemical control mainly adopted, aiming kill the insect before it acquires and transmits virus. In present study, we evaluated toxicity of 17 insecticides on B. subsequently determined lethal time this pest (only that caused mortality equal or greater than 80%). Here, an efficient methodology assessing in individual adult. We also provided investigation regarding residual effect cabbage greenhouses. selectivity these predator minute pirate bug Orius tristicolor was assessed. Bifenthrin, cartap, chlorfenapyr chlorpyrifos ≥ 80% adults. They showed fast (<24 h), principally which 100% only 45 min. However, short period (<3 days) did not physiological O. tristicolor. terms management, few were avoid begomoviruse transmission. absence suggests use products should involve sustainable approach. Taking population levels into account when making decisions preservation agroecosystems positively contribute more management.