Bioefficacy of insecticides against major sucking insect pests of brinjal ( Solanum melongena L.)

The bioefficacy of insecticides against the major sucking insect pests viz . jassid, Amrasca biguttula biguttula (Ishida) and Whitefly, Bemisia tabaci (Genn.) of brinjal, solanum melongena L. crop that the insecticide of imidacloprid 17.8 SL (0.005%) was found most effective against sucking insect pests on brinjal, followed by thiamethoxam 25 WG (0.005%), whereas, emamectin benzoate 5 SG (0.002%) and spinosad 45 SC (0.01%) were found to be least effective. The remaining treatments viz. , acetamiprid 20 EC (0.004%), acephate 75 SP (0.05%), indoxacarb 14.5 SC (0.005%) and fipronil 5 SC (0.01%) were found moderately effective. The maximum fruit yield was obtained in the treatment of imidacloprid 17.8 SL (220.73 q/ha), followed by thiamethoxam 25 WG (217.88 q/ha). The higher fruit yield was also obtained in the treatment of acetamiprid 20 EC (206.95 q/ha), followed by acephate 75 SP (205.27 q/ha), indoxacarb 14.5 SC (203.22 q/ha) and fipronil 5 SC (200.14 q/ha) and minimum fruit yield of 196.28 q/ hawas obtained in the treatment of emamectin benzoate 5 SG, followed by spinosad 45 SC (198.69 q/ha). The maximum net profit of rupees 124064/ha was obtained in the treatment of imidacloprid 17.8 SL, followed by thiamethoxam 25 WG (Rs. 120144/ha), while, the minimum net profit of rupees 91404 q/ha was obtained in the treatment of emamectin benzoate 5 SG followed by spinosad 45 SC (Rs. 93462 q/ha).

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