Monitoring and management of potato crop aphids in Eastern Uttar Pradesh
摘要
Aphids are the primary vectors of viral diseases in potato crops, causing tuber degeneration and significant yield losses. While Eastern Uttar Pradesh is a major potato-growing region in India, data on peak aphid activity for timely pest management has been lacking. During 2023–24, experiments were conducted to monitor aphid population dynamics (variety. Kufri Garima) and evaluate insecticide efficacy (variety Kufri Jyoti). Among the species recorded, Aphis gossypii Glover predominated over Myzus persicae Sulzer during the potato growing season. Testing of novel insecticides revealed that two applications of Pymetrozine 50% WG (T3) at 14-day interval were most effective, significantly reducing the aphid population by 86.95% and achieving a maximum potato tuber yield and net profit of 224.5 q/ha and Rs.27,222 respectively. These findings will be useful for potato growers of eastern Uttar Pradesh for obtaining better profits through effective mitigation of aphid borne virus transmission in potato crop using novel chemistry insecticides.