Abstract

The diamondback moth, Plutella xylostella L., belongs to the family Plutellidae and the order Lepidoptera, which is a destructive pest all over the world and causes great problems in many countries and has great economic importance and its control costs approximately one billion dollars annually. The current experiment was performed on this pest to check the toxicity of Dimethoate, Emamectin, and Lufenuron insecticides on larvae of P. xylostella. The results showed that emamectin was the most toxic insecticide, followed by lufenuron and dimethoate in both laboratory and field conditions. The mortality rate of pests was low in field conditions as compared to laboratory conditions. The mortality percentage increased with the increase in the application time of insecticides. All the treatments were also observed to be significantly superior to the control.

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