Biological management

  • Application of Nuclear Polyhedrosis Virus (NPV) at 3x10      12POB/ha in evening hours at 7th and 12th week after sowing
  • Bacillus thuringiensis kurstaki 750-1000 g/ha
  • Beauveria bassiana 1.15% WP 400 g/ha
  • Conservation and augmentation of natural predators and parasitoids for effective control of the pest.
  • Inundative release of egg parasitoid, Trichogramma spp., at 6.25 cc/ha at 15 days interval 3 times from 45 DAS
  • Egg-larval parasitoid, Chelon us blackburnii and Predator, Chrysoperla carnea at 1,00,000/ha at 6th, 13th and 14th week after sowing.
  • ULV spray of NPV at 3x10     12POB/ha with 10% cotton seed kernel extract, 10% crude sugar, 0.1% each of Tinopal and Teepol for effective control of Helicoverpa
  • Dicofol, methyl demeton, monocrotophos and phosalone are comparatively safer to Chrysoperla larva recording low egg mortality