Agritech Archive
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Agritech Archive

Production · Protection · Nutrients · Water
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Identification of the pest

  • Defoliation in early stages
  • Larva’s head alone thrust inside the pods and the rest of the body hanging out.
  • Pods with round holes
  • Eggs – are spherical in shape and creamy white in colour, laid singly
  • Larva - shows colour variation from greenish to brown. Green with dark brown grey lines laterally
  • on the body with lateral white lines and also has dark and pale bands.
  • Pupa – brown in colour, occurs in soil, leaf, pod and crop debris
  • Adult - light pale brownish yellow stout moth. Fore wing grey to pale brown with V shaped speck.Hind wings are pale smoky white with a broad blackish outer margin.

Management

  • ETL: 10% of affected pods
  • Pheromone traps for Helicoverpa armigera 12/ha
  • Mechanical collection of grown up larva and blister beetle
  • Ha NPV 3 x1012 POB/ha in 0.1% teepol
  • Apply any one of the following insectcides:
  • Azadirachtin 0.03%WSP 2500-5000 g/ha
  • Bacillus thuringiensis serovar kurstaki (3a,3b,3c) 5%WP 1000- 1250 g/ha
  • Emamectin benzoate 5%SG 220 g/ha
  • Indoxacarb 15.8%SC 333 ml/ha
  • NPV of H. armigera 2% AS 250-500
  • Quinalphos 25%EC 1400 ml/ha
  • Spinosad 45%SC 125-162 ml/ha
  • Phosalone 0.07%(Spray fluid 625 ml/ha) (Note : Insecticide / Ha NPV spray should be made when the larvae are upto third instar)
Larva feeding the podDamaged pod
EggLarvaPupaAdult