Shahin Khan, N. S. Bhadauria and V.K. Shrivastava
Abstract
Eight chemical insecticides Dimethoate, Acephate, Chilorantraniliprote, Acetamiprid, Oxydemeton-methyl, Imidacloprid, Thiamethoxam, Diafenthiuron and Neem leaves extract 5% were tested against mustard aphid and their toxicity effect on beneficial insects in the department of Entomology College of Agriculture, R.V.S.K.V.V. Gwalior. Imidacloprid was found most effective against mustard aphid followed by Thiamethoxam and Dimethoate. Among chemical insecticide Acetamiprid was found less toxic to D. rapae followed by acephate. Diafenthiuron was less toxic to coccinellid beetle followed by acephate and Acetamiprid. Acephate less toxic to honey bee follwed by Diafenthiuron and Acetamiprid. Neem leaves extract 5% was found less toxic to D. rapae, Coccinellid beetle and pollinator (Honey bee) in comparison to chemical insecticides. Maximum grain yield was obtained in Imidacloprid followed by Thiamethoxam and Acetamiprid.