Compatibility of entomopathogenic fungi Beauveria bassiana with plant extracts evaluated against okra two spotted spider mite, Tetranychus urticae Koch

Efficacy of aqueous fruit extract of Sapindus marginatus rhizome extract of Acorus calamus and NSKE 5% and compatibility of entomopathogenic fungi, Beauveria bassiana (Buls.- criv.) Vuill with selected aqueous extracts against okra two spotted spider mite Tetranychus urticae Koch was studied under laboratory conditions. The results revealed that the aqueous extract of S. marginatus showed highest acaricidal activity at 10%. In compatibility studies, A. calamus was highly detrimental to B. bassiana followed by S. marginatus. These extracts could be integrated with fungi in the biointensive integrated pest management (BIPM) programme.