Vol. 8, Special Issue 9, Part D (2024)

The present study conducted to evaluate the efficacy of novel and conventional insecticides for managing whitefly populations and their associated impact on YVMV (Yellow Vein Mosaic Virus) in bhendi. Five insecticides-Pyriproxyfen 10% EC, Imidacloprid 17.8% SL, Thiamethoxam 25% WG, Acetamiprid 20% SP, and Bifenthrin 10% EC were tested for their effect on whitefly infestation, YVMV incidence, yield, and economic viability. Pyriproxyfen 10% EC and Imidacloprid 17.8% SL demonstrated superior efficacy, reducing whitefly populations by 80.00% and 72.22%, respectively, and achieving significant reductions in YVMV incidence (70.42% and 67.60%, respectively). Thiamethoxam and Acetamiprid also showed substantial efficacy but with lower reductions compared to other treatments. Bifenthrin 10% EC, while somewhat effective, did not significantly outperform the control. Yield analysis revealed Imidacloprid and Pyriproxyfen yielded the highest fruit yield in bhendi, and economic analysis confirmed that both these insecticides provided the best benefit-cost ratios (BCRs) of 1:2.27 and 1:2.13, respectively. The strong association between reduced whitefly populations and lower YVMV incidence underscores the effectiveness of these treatments in both pest and disease management.