2001•Journal of Entomological ResearchRequires access

Comparative field efficacy of insecticides against mustard aphid, Lipaphis erysimi (Kalt.) on rapeseed crop in mid-hill zone of Himachal Pradesh

Nirmala Devi, Indira Dogra, Desh Raj

Abstract

Studies on field efficacy of four insecticides against Lipaphis erysimi (Kalt.) infesting rapeseed, Brassica campestris var. brown sarson (BSH-1) at Palampur (H.P) during 1998–99 showed that highest reduction in aphid population and also maximum yield was obtained from phosphamidon (0.03%) and cypermethrin (0.01%) followed by methyl-demeton (0.025%) and dimethoate (0.03%) after 5 days of treatment.

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Key concepts: Lipaphis erysimi, Dimethoate, Phosphamidon, Rapeseed, Aphid, Brassica, Toxicology, Cypermethrin