Comparative Relative Toxicity of some Modern Insecticides against Spodoptera litura Fabricius on Groundnut

Investigation on comparative relative toxicity of some modern insecticides against S. litura revealed that emamectin benzoate was the most toxic and effective insecticide as its LC₅₀ value was 0.000954. Notably, emamectin benzoate proved very effective in laboratory, as evident from its low LC₅₀ values against S. litura. As emamectin benzoate is a novel semi-synthetic derivative of the natural product was found to be most toxic. On the other hand, spinosad found to be the least toxic in which the LC₅₀ value was worked out to the tune of 0.0158.