Indian Journal of Horticulture
  • Year: 2015
  • Volume: 72
  • Issue: 2

Efficacy of novel insecticides and biopesticides against whitefly on okra

1DRI cum Director of Research, SKUAST-Jammu

Faculty of Agriculture, Wadura, Sopore, Sher-e-Kashmir University of Agricultural Sciences & Technology, Kashmir

*Corresponding author's present address: KVK/ETC, SKUAST-K, Malangpora, Pulwama (J&K); khokherak@rediffmail.com

Online published on 6 July, 2015.

Abstract

The experiment was conducted at the farmer's okra field in Randomized Block Design with 8 treatments replicated thrice. The bio-efficacy of different novel insecticides against white fly revealed that among the treatments, seed treatment of imidacloprid 5 g/kg seed + neem Azal @ 5000 ppm spray + indoxacarb 75 g a.i/ha spray + Bacillus thuringiensis (Biolep) @1 kg/ha spray was significantly most effective treatment and reduced whitefly count by 63.01 -52.13 and 52.45 -42.34% at one and seven days after first and second spraying, respectively. However, imidacloprid 5 g/kg seed + neem Azal @ 5000 ppm + indoxacarb 75 g a.i/ha + Bt @ 1 kg/ha combination was not so much effective treatment after 3rd spray as that was after 1st and 2nd spray of the insecticides and biopesticides.

Keywords

Okra, whitefly, imidacloprid, indexocarb insecticides and biopesticides