The selective toxicity of three doses viz., 1.25, 2.5, 3.75 mL/L ofspirotetramat 150 OD against the life stages of Chrysoperlazastrowisillemi was studied under in vitro conditions. The higher dose of tested insecticide caused 28.88% mortality and hence spirotetramat can be considered ‘harmless’ to C. z. sillemi as per the categorization of IOBC (International Organization on Biological Control). There was no adverse effect of spirotetramat 150 OD over the egg hatching percentage, rate of pupation, adult emergence and fecundity of C. z. sillemiand hence considered as a safer molecule to be integrated with chrysoperla in insect management programs.