1College of Agriculture Sciences, Teerthanker Mahaveer University, Moradabad - 244 001, Uttar Pradesh, India
Department of Entomology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur - 208 002, Uttar Pradesh, India
*Corresponding authors’ E-mail : rajuverma502860@gmail.com
Online Published on 24 December, 2025.
The infestation of mustard aphid was observed from flowering to maturity. It reached peak in the 8th standard meteorological week (SMW) with 196.44 aphids/10 cm twig at 27.4°C max, 12.3°C min temperature, 64.5% RH, and no rainfall conditions. Initial incidence started at 2.17 aphids/10 cm in the 52nd SMW, and decreased thereafter 8th SMW. Dimethoate 30 EC @ 1 ml/L was the most effective, which minimized the population to 3.66 aphids/10 cm, with 97.30% control, 17.46 q/ha yield, 1:26.96 ICBR, and ₹ 47,348/ha net return. Azadirachtin @ 5 ml also reduced the aphids to 5.53/10 cm, 95.92% control, 16.9 q/ha yield, and 1:20.49 ICBR.
Indian mustard (Brassica juncea), Management, Mustard aphid, Seasonal incidence
