Bioefficacy and shelf life of different biopesticides in oil based liquid formulation

Prof. C. V. Shende, Prof. A. C. Shende, Prof. N. A. Nalawade, Prof. A. S. Kumbhar


Oil – based formulations have been reported to increase the adhesion of progapules to the insect integument, enhance spread of inoculum over the insect body, enhance penetration of the insecticide, protect propagules from ultraviolet radiation and enhance infection under low humidity. Use of oil-based formulations within a biologically based framework is vital. Study investigated the effects of various oils on the germination of Metarhizium and Beauveria, also the viability of propagules stored in oil, the oil and adjuvants interfere with the inoculation and infection process. Shelf life of biopesticides viz. B. thuringiensis, M. anisopliae and B. bassiana in D-C-Tron Plus oil, gave 3.8 x 106, 3.8 x 106 and 3.5 x 106 spore / ml population respectively after 120 days, whereas in the alone (in broth) treatment biopesticides gave 3.4 x 106, 3.7 x 106 and 3.7 x 106 spore / ml population respectively, after 120 days.


Shelf Life, oil based liquid formulation, Biopesticides

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