Journal of Entomological Research
SCOPUSWeb of Science
  • Year: 2017
  • Volume: 41
  • Issue: 2

Impact of certain bio-pesticides on larval mortality of Helicoverpa armigera hübner (Noctuidae: Lepidoptera) in chickpea

1Department of Entomology, Bihar Agricultural University, Sabour, Bhagalpur-813 210, Bihar, India; E-mail: rsc_bau@rediffmail.com

University Department of Zoology, Lalit Narayan Mithila University, Darbhanga-846 004, Bihar, India

*Corresponding author's E-mail: pkojha2@gmail.com

**E-mail: renuka_lnmu@rediffmail.com

Online published on 17 July, 2017.

Abstract

Data recorded after 14th days of treatment showed that Btk (1.25 kg), HanPV (350 LE), HanPV (125 LE) + Btk (0.5 kg), Btk (0.5 kg) + quinalphos (0.02%) exhibited the highest mean larval mortality as 93.33%. Btk (1.25 kg) proved its highest efficacy with similar potency (93.33%) in both the years. Azadirachtin (0.05%) showed lowest mean larval mortality as 33.33%.

Keywords

Field evaluation, bio-pesticides, larval mortality, Helicoverpa armigera, chickpea