Habrobracon hebetor Say is an idiobiont and gregarious larval ectoparasitoid of many moths. In this study, the effects of field recommended concentrations (FRC) of seven biorational and conventional pesticides in cotton fields (imidacloprid, thiacloprid, deltamethrin, thiodicarb, carbaryl, abamectin and spinosad) were studied on the larval ectoparasitoid, H. hebetor. Exposure cages were used for the bioassay experiments. The experiments were carried out in the laboratory at 26±1°C, 60±5% relative humidity (RH) and with a photoperiod of 16:8 (L:D). Experiments were done in three replications. The results showed that all pesticide treatments had significant differences compared to the control treatment. The results also showed that synthetic and biorational pesticides had lower toxicity than conventional pesticides. We demonstrated that imidacloprid and thiacloprid had lower adverse effects on the parasitoid and could be used as compatible chemical materials with the parasitoid in Integrated Pest Management (IPM) programs.