Efficacy of Newer Insecticides against Spotted Pod Borer (Maruca vitrata Geyer) in Black Gram (Vigna mungo (L.) Hepper)

Efficacy of newer insecticides against spotted pod borer, Maruca vitrata was evaluated during late rabi, 2023-24. The results revealed that among all the treatments, the lowest mean larva per plant of 0.72, 0.98 and 1.10 with highest reduction in larval population of 87.0, 82.0 and 80.1% were recorded in chlorantraniliprole 10% + lambda-cyhalothrin 5% ZC, chlorantraniliprole 8.8% + thiamethoxam 17.5% SC and pyridalyl 10% EC, respectively. The least pod damage was recorded in chlorantraniliprole 10% + lambda-cyhalothrin 5% ZC (5.1%) which recorded highest yield (12.63 q ha¹) and C:B ratio (1:1.93), followed by chlorantraniliprole 8.8% + thiamethoxam 17.5% SC (6.0%, 11.57 q ha^-1 and 1: 1.78) and pyridalyl 10% EC (6.7%, 10.35 q ha¹ and 1:1.6). Spinetoram 11.7% SC was found to be the least effective with highest mean larva per plant (2.26), lowest reduction (58.3%) and pod damage (10.9%).