Author(s):

Parmod Negi, Vishvendra and Sandeep Kumar

Abstract: An experiment was conducted at Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand, to study the bioefficacy of some biopesticide formulation against cabbage butterfly Pieris brassicae Linn., In cabbage. Biopesticide used in the experiment were Bacillus thuringiensis (Lipel), Verticillium lecanii (Mealikil), Beauveria bassiana (Race), Beauveria bassiana (Daman), Beauveria bassiana (Local strain), Metarhizium anisopliae (Pacer), Metarhizium anisopliae (Kalichkra) and contol. The Bacillus thuringiensis (Lipel), Verticillium lecanii (Mealikil), Beauveria bassiana (Race), Metarhizium anisopliae (Pacer) and Beauveria bassiana (Local strain) were Ist 1x108, 2nd 5x107, 3rd 2x107 and 4th 1x107. The observations of mortality were recorded after 1st, 2nd, 3rd, 4th, 5th and 6th days of feeding at different concentrations. The final observation of bio-efficacy based on pooled mean values (mean of mortality values at all days and concentrations) was observed as B. bassiana (local strain) (49.9%)>Mealikil (47.2%)> Pacer (46.4%)>Kalichakra (45.8%)> Racer (45.7%)>Lipel (44.2%)> Daman (37.5%).

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