none Twelve pesticides recommended on tobacco were tested against two important natural enemies Apanteles africanus Cameron and Telenomus remus Nixon of tobacco caterpillar, Spodoptera litura F. All the insecticides except phosalone were found to be highly toxic 24 hours after application to both the parasitoids. Phosalone was found to be moderately toxic, whereas all the fungicides and neem seed kernel suspension were safe. Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Habitat; Man made habitat; Abiotic factors; Chemical factors Spodoptera litura (Noctuidae); Hymenopteran parasites; Apanteles africanus & Telenomus remus; Parasitoid response to pesticides on tobacco; Cultivated land habitat; Tobacco, response of hymenopteran parasite to pesticides Apanteles africanus (Braconidae ); Telenomus remus (Scelionidae ); Lepidopteran hosts; Spodoptera litura; Parasitoid response to pesticides on tobacco; Cultivated land habitat; Tobacco, response of natural enemies of lepidopteran host to pesticides; Fertilizers and pesticides; Pesticides effect on natural enemies of lepidopteran host, tobacco habitat