Evaluating the efficacy of insecticides against major insect pest threats on pigeonpea in Eastern Plain Zone of Uttar Pradesh

Abstract

The efficacy of seven insecticides was evaluated against major insect pests on long-duration pigeonpea crop. The results showed that Thiamethoxam 25 WG was the most effective against tur pod fly with the lowest maggot population, pod damage (23.33%), and grain damage (11.94%). Flubendiamide 480 SC resulted in the lowest larval population of gram pod borer, with the least pod and grain damage (0.67% and 0.21%, respectively). Thiamethoxam 25 WG also recorded the lowest bug population, pod damage, and grain damage in the case of tur pod bugs. The highest grain yield (1065.63 kg/ha) was achieved with Thiamethoxam 25 WG, followed by Flubendiamide 480 SC (1038.67 kg/ha). Thiamethoxam 25 WG also had the highest incremental cost-benefit ratio (1:7.04), followed by Flubendiamide 480 SC (1:5.06). Based on these results, Thiamethoxam 25 WG and Flubendiamide 480 SC can be recommended for controlling the key insect pests of pigeonpea in Eastern Plain Zone of Uttar Pradesh. © 2025, Malhotra Publishing House. All rights reserved.