Control of the Whitefly Trialeurodes vaporariorum Westw. (Homoptera, Aleyrodidae) on tomato by the new insecticide Acetamiprid

The efficacy of a new class of insecticide (chloronicotinyl) Mospilan 20 SP (a.i. acetamiprid), compared with Lannate 90 SL (a.i. methomyl) and Applau d WP 25 (a.i. buprofezin), in glasshouse control of whitefly (Trialeurodes vaporariorum) on tomatoes, was investigated. All investigated insecticides significantly decreased the number of whitefl y larvae, compared with untreated plots where population density grew durin g the trial. Based on statistical analysis, efficacy of all insecticides on whitefly larvae were in the same category Some differences occurred 7 days after the third treatment. Deposited egg number was significantly differen t between checks and each insecticide plot, Efficacy of investigated insect icides, evaluated according to deposited egg number, was also good and in t he same category.