Abstract
The mustard aphid Lipaphis erysimi Kalt can reduce yields up to 96%. In rabi 2017-18, a field study was conducted at the Crop Research Centre (CRC), Sardar Vallabhbhai Patel University of Agriculture and Technology, Modipuram, Meerut (Uttar Pradesh), to assess the efficacy of some insecticides and biopesticides. Thiamethoxam 25WG @ 100 g/ ha was observed to be more effective with least incidence at 3, 7, and 10 days after the first and second sprays. Imidacloprid 17.8SL @ 100 ml/ ha was the second-best treatment. Dimethoate 30EC @ 1000 ml/ ha, fipronil 5 SC @ 500 ml/ ha, Beauveria bassiana @ 2.0 kg/ ha, and Metarhizium anisopliae @ 2.0 kg/ ha were the other treatments found effective.
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