A laboratory experiment was conducted in the Department of Agricultural Entomology, College of Agriculture, Vijayapur to evaluate the toxicity of insecticides to second instar grub of Chrysoperla zastrowi sillemi (Esben-Petersen) (Neuroptera: Chrysopidea). The results of the experiment indicate that among 18 treatments tested, irrespective of the interval, the grub mortality increased with the increase in the dosage of insecticides. Among the different insecticides, in the recommended dose at 24 Hours Afetr Treatment (HAT), NSKE @ 5 ml/l, neem gold 0.03 EC @ 5 ml/l, buprofezin 50 SC @ 0.25 ml/l, thiamethoxam  25 WG @ 0.2 g/l, spinetoram 12 SC @ 0.2 ml/l, emamectin benzoate 5 SG @ 0.2 g/l, chlorantraniliprole 20 SC @ 0.15 ml/l, spinosad 45 SC @ 0.15 ml/l, fipronil 5 SC @ 1 ml/l,  flonicamid 50 WG @ 0.1 ml/l and indoxacarb 15 EC @ 0.3 ml/l were classified as harmless insecticides. At 72 HAT, NSKE @ 5 ml/l, neemgold 0.03 EC @ 5 ml/l, buprofezin 50 SC @ 0.25 ml/l, thiamethoxam 25 WG @ 0.2 g/l, spinetoram 12 SC @ 0.2 ml/l and emamectin benzoate 5 SG @ 0.2 g/l can be classified as harmless insecticides