Baseline Toxicity of Abamectin and Indoxacarb Against Spotted Bollworm, Earias vittella

Studies carried out to find the acute toxicity of abamectin and indoxacarb against spotted boll worm, Earias vittella revealed an LD value of 0.00233 and 0.09270 μg larva^-1, respectively. Discriminating dose was fixed for the same after assessing the susceptibility of the insect by culturing the insect through a number of generations without insecticide exposure so as to have a susceptible population. The discriminating doses were fixed as 0.013 and 0.80 μg larva^-1for abamectin and indoxacarb, respectively which can be used in resistance monitoring programmes further.