The Effect of Some Biorational Insecticides on Trialeurodes Vaporarioum in Laboratory and Greenhouse Conditions

Greenhouse whitefly (Trialeurodes vaporarioum) is one of the most important pests of farms, gardens, and greenhouses which reduce the quality and quantity of yield. This insect is controlled by chemical poisons or biological factors. Sensitivity of mature insects in laboratory and sensitivity of eggs and nymphs in greenhouse were evaluated against acetamipride, pyriproxyfen, buprofezin, azadirachtin and flufenoxuron pesticides. Bioassay method for mature insects was dipping method. In greenhouse, mentioned pesticides were used as five treatments of a completely randomized design (200, 40, 64, 2500, and 500 ppm, respectively) with three replications. Each experimental unit had three pots of same age plants of tomato. In bioassay method, LC50 amount of pesticides were determined as 75.17, 57.14, 33.22, 631.2, and 59.7 ppm, respectively. The highest and the least mortality of nymphs were belonging to acetamipride (66.59%) and Pyriproxyfen (52.07%) whereas for eggs were belonging to acetamipride (67.03%) and flufenoxuron (56.03%). According to results, buprofezin and acetamipride are recommended as the best poisons for greenhouse whitefly.