Abstract
A laboratory experiment was conducted at Post Graduate Laboratory, Department of Agricultural Entomology, College of Agriculture, Latur, Maharashtra, India during 2017-18. Resistance to five test insecticides viz., chlorantraniliprole, cyantraniliprole, emamectin benzoate, indoxacarb and spinosad was investigated against H. armigera infesting chickpea from different locations of Western Maharashtra (Ahmednagar, Kolhapur, Nashik, Pune, Sangali, Satara and Solapur). Results revealed that, H. armigera infesting chickpea of Solapur recorded 7.00-fold resistance to indoxacarb 15.8% EC which was higher than other field populations H. armigera. The resistance ratios varied greatly among the populations and high resistance factor of indoxacarb 15.8% EC against all field populations of H. armigera infesting chickpea from all 7 locations revealed that development of decreased susceptibility to low level resistance against this insecticide whereas chlorantraniliprole 18.5% SC, cyantraniliprole 10.26% OD, emamectin benzoate 5% SG and spinosad 45% SC found to be toxic.
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