Vol. 6, Issue 6 (2018)
Relative residual toxicity of selected insecticides against greenhouse whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleurodidae) on tomato
Author(s): Sachin US and Suchithra Kumari MH
Abstract: The relative residual toxicity of selected insecticides against whitefly was assessed in the Entomology laboratory at College of Horticulture, Mudigere during the year 2014-2015. The treatments viz., imidachloprid (15.70 to 22.97%), triazophos (10.43 to 21.97%), thiamethoxam (20.77 to 37.97%), cyantraniliprole (20.03 to 34.37%), azadirhactin (10.40 to 18.27%), fipronil (6.60 to 29.10%) and buprofezin (7.93 to 17.00%) showed high level of residual toxicity up to sixth day after the treatment. From eighth day after treatment, toxicity started decreasing. However, in treatments acephate and emamectin benzoate, residual toxicity started decreasing from sixth day itself. Although toxicity of spinosad (15.23%) was noticed to be high at two days after treatment, its toxicity started decreasing from fourth day itself. At sixth day after treatment, the order of residual toxicity was thiamethoxam > cyantraniliprole > fipronil > imidachloprid > triazophos > azadirhactin > buprofezin > spinosad > emamectin benzoate > acephate.
Pages: 73-76 | 1058 Views 133 Downloads
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How to cite this article:
Sachin US, Suchithra Kumari MH. Relative residual toxicity of selected insecticides against greenhouse whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleurodidae) on tomato. Int J Chem Stud 2018;6(6):73-76.
