Vol. 11, Issue 8 (2022)

Author(s):
Ravi Shanker, Rajendra Singh, DV Singh, Kamal Khilari, Pawan Kumar, Aditya Patel, Sushant Kumar, Reetesh Pratap Singh and Malyaj R Prajapati

Abstract:
The effectiveness of entomopathogenic fungi M. anisopliae with the concentrations of 2 × 10³, 2 × 10⁴, 2 × 10⁵, 2 × 10⁶, 2 × 10⁷, 2 × 10⁸, 2 × 10⁹ and 2 × 10¹⁰ conidia ml^-1 with 0.5 percent Jaggary were evaluated against Helicoverpa armigera (Hub) infestation on chickpea under field condition during 2020-21 and 2021-2022. The larval reduction percent was gradually increased with conidial concentration. The most effective conidial concentration was 2 × 10¹⁰ @ 5ml/lit water with 59.07 mean larval reductions percent, pod damage 7.33 percent and yielded 16.81 q/ha grain with 5.26 Rs. incremental cost benefit ratio.