A total of thirteen pesticides were tested againstTelenomus remusNixon, an exotic parasitoid ofSpodoptera litura(F.). At field‐recommended dosage, fungicides (Dithane and Fytolan) and the acaricides (Sulphur and dicofol) did not affect the parasitoid. All of the insecticides included in the study (monocrotophos, phosalone, endosulfan, methomyl, methyl demeton, dimethoate, chlorpyriphos, quinalphos and carbaryl) proved detrimental to adultT. remus.However, these insecticides did not affect the parasitoid emergence from the parasitized eggs except chlorpyriphos and quinalphos. When fresh eggs, treated with these two insecticides, were exposed toT. remuspercentage parasitism was found to be poor whereas the eggs treated with other insecticides were found completely parasitized byT. remus.Spraying of chlorpyriphos and quinalphos should be avoided when this parasitoid is released.