The residual action of nine insecticides commonly used in cotton were assessed on the survival of the native egg parasitoid Trichogramma funiculatum by exposing adult wasps to sprayed cotton leaves 1, 3, 5, 7, 1 O and 14 days after treatment (DAT). Es-fenvelerate (.025% a.i.), betacyfluthrin (.02% a.i), methomyl (.045% a.i.) and thiodicarb (.075% a.i.) were highly toxic to the wasps, while endosulfan (.07% a.i) and profenofos (.075% a.i.) were not significantly toxic from DAT 3 onwards. Bacillus thuringiensis (30 ml/L), chlorfluazuron (.02% a.i.) and omethoate (.02% a.i.) had no significant adverse affects on wasp survival