Field-efficacy of biopesticides and insecticide combinations against diamondback moth at Bilaspur (Chhattisgarh)

Abstract

The field experiment was conducted at Instructional farm of BTC CARS, Bilaspur, (C.G.) during Rabi 2023-24, to know the field efficacy of biopesticides and insecticide combinations against diamondback moth in cabbage crop. The mean on number of larvae/plant recorded after first and second spray showed that Spinetoram 11.7% SC recorded the lowest larvae (2.21 larvae/5plants) was shown to be substantially superior to all other treatments. Bacillus thuringiensis 10% (1x109 CFU/ml) + 50% dose of Spinetoram 11.7% SC (3.79 larvae/5plants) was the second-best treatment followed by Azadirachtin 0.03% EC + 50% dose of Spinetoram 11.7% SC (4.79 larvae/5plants), Beauveria bassiana 10% (1x109 CFU/ml) + 50% dose of Spinetoram 11.7% SC (6.00 larvae/5plants), Whereas, in untreated control (16.17 larvae/5plants) were observed.