Phenotypic and biochemical characterization of microorganisms associated with the entomopathogenicity against Helicoverpa armigera and selection of best potent bacteria having insecticidal activity

There was a sum of four strains which were found to be entomopathogenic against Helicoverpa armigera. All of these bacterial strains were gram positive endospore forming strains. In the present study, the phenotypic and biochemical nature of all larvicidal strains was studied followed by a leaf based bioassay to obtain the best potent strain. As a result of this study, 4c culture was found to be best potent as 100% mortality was observed.