Indian Journal of Entomology

Open Access
SCOPUSWeb of Science
  • Year: 2020
  • Volume: 82
  • Issue: 2

Egg and larval population of Helicoverpa armigera in ipm modules in pigeonpea

Department of Entomology and Agricultural Zoology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221005

1Department of Entomology, SVPUA&T, Meerut, 250110

Abstract

Present study done during kharif 2013–14 and 2014–15 at the Agricultural Research Farm, Banaras Hindu University, Varanasi evaluates the egg and larval population of Helicoverpa armigera in pigeonpea, as influenced by selected IPM modules. The least egg population was observed with the module M2 (pheromone traps @ 20 + bird perches @ 20 + Bacillus thuringiensis subsp. kurstaki @ 1.0 kg + spinosad 45SC @ 73 g/ha. As regards larval population, the module M4 (pheromone traps @ 20 + bird perches @ 20 + indoxacarb 14.5 SC @ 60 g a.i. + imidacloprid 17.8 SL @ 20 g a.i. + indoxacarb 14.5 SC @ 60 g a.i./ha) was the one with least numbers. The relationship between egg and larval counts was positive and highly significant in all modules during both the years.

Keywords

Helicoverpa armigera, pigeonpea, IPM modules, pheromone traps, bird perches, spinosad, indoxacarb, imidacloprid, monitoring, egg, larva, correlations