Comparative Efficacy of some Microbial Biopesticides against Gram Pod Borer, Helicoverpa armigera (Hubner), in Chickpea, Cicer arietinum (L.)

The experiment was conducted at the research plot of Department Agricultural Entomology Central Research Field, Sam Higginbottom University Agriculture Technology and Sciences, Prayagraj, India, during Rabi season 2022. treatments selected for this were Emamectin benzoate, Beauveria bassiana, Spinosad, Heterorhabditis indica, Metarhizium anisopliae, HaNPV, Bacillus thuringiensis control to observe efficacy cost benefit ratio. sprayed two times pod borers having crossed their ETL levels an interval 15 days. Observations i.e. larval counts (5 random plants/plot) taken in order day before spray, 3rd, 7th 14th days after spray. results revealed that successful bringing down pest infestation superior over control. Among all applied, lowest population gram borer observed Spinosad 45 SC (1.09) showing a highest yield 23.79 q/ha against yielding only upto 9.03 q/ha. At same time, ratios stands like 45% (1:2.81) followed by benzoate 5% SG (1:2.74), HaNPV 2x109 (POB’s/ml) (1:2.56), bassiana 1x108 (CFU/gram) (1:1.74), (CFU/ml) (1:1.54), anisopliae (1:1.37), indica 5.0x109 IJ (1:1.30) as compared (1:0.69).