Stenotrophomonas maltophilia a new biocontrol agent against the cowpea weevil Callosobruchus maculatus F. (Coleoptera: Bruchidae)

Callosobruchus maculatus F. (Coleoptera; Bruchidae) is one of the most important storage pests, especially in legumes, which causes significant damage many parts Iran, including east Azarbaijan province. This study aimed to isolate and identify insect-associated bacteria with this pest then evaluate capability these bacterial isolates biocontrol insect laboratory conditions. Stock culture C. was collected from field East Azerbaijan, maintained under conditions 25 ± 2° C 60 5% RH. Dead adult beetles were surface-sterilized 0.1% hypochlorite transferred NA media plates. It appeared that isolated purified.