The experiment was conducted at Experimental Research Farm, Department of Agricultural Entomology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, during the Kharif season of the year 2016-17 to study population dynamics and bio-efficacy of new insecticides against insect pests of chilli. The experiment was laid out in a randomized block design with 9 treatments replicated three times. The treatments comprised of fipronil 5 SC @ 1000 ml/ha, hexythiaziox 5.45EC @ 500 ml/ha, spinosad 45 SC @ 187.5 ml/ha, acetamiprid 20 SP @ 250 g/ha, fenpyroximate 5 EC @ 600 ml/ha, emamectin benzoate 5 SG @ 250 g/ha, spiromesifen 22.9 SC @ 250 ml/ha, diafenthiuron 50 WP @ 625 g/ha and untreated control. The observations on population dynamics of thrips, mites, white fly and fruit borer also recorded.The overall results indicated that the treatment with spinosad 45 SC @ 187.5 ml/ha was found superior in controlling chilli thrips & fruit borer, whereas the treatment with diafenthiuron 50 WP @ 625 g/ha was found superior in controlling chilli whitefly, Fenpyroximate 5 EC @ 65 EC @ 600 ml/ha was found superior in controlling chilli mites.