PROJECT OBJECTIVES To monitor pyrethroid, endosulfan, organophosphate and carbamate resistance in H. armigera and H. punctigera. from all cotton areas and to refine resistance management strategies. Determine the genetic basis of carbamate in H. armigera and H. punctigera and organopbosphate resistance in H. armigera To develop and promote use of rapid biochemical techniques for the detection of organophosphate and carbamate resistance in the field. To evaluate new insecticides for Helicoverpa control, establish baseline susceptibility data and investigate their inherent resistance potential