Journal of Entomological Research
SCOPUSWeb of Science
  • Year: 2001
  • Volume: 25
  • Issue: 2

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

  • Author:
  • Nirmala Devi, Indira Dogra, Desh Raj
  • Total Page Count: 5
  • Page Number: 93 to 97

Department of Entomology, C.S.K. Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, HP, (India).

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.