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Production · Protection · Nutrients · Water
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Symptoms of damage :

Gram pod borer: Helicoverpa armigera
Symptoms of damage : Larvae feed on the foliage, prefers flowers and buds When tender leaf buds are eaten symmetrical holes or cuttings can be seen upon unfolding of leaflets Identification of the pest : Eggs: S pherical in shape and creamy white in colour, present singly Larva: Shows colour variation from greenish to brown. It has dark brown grey lines 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. Forewings are olive green to pale brown with a dark brown circular spot in the centre. Hind wings are pale smoky white with a broad blackish outer margin.
Management : Deep summer ploughing Intercrop one rows of red gram for every 5 or 6 rows Install pheromone trap @ 5/ha Use Trichogramma chilonis @ 1 lakh/ha or Chrysoperla carnea @ 50000/ha at 40 and 50 days after sowing of groundnut can effectively check the pest Apply HaNPV @ 250 LE/ha or B.t ( Bacillus thuringiensis ) 1 kg/ha or 5% NSKE for monitoring eggs and early instar larvae Conserve the bio control population of spiders, long horned grasshoppers, preying mantids, robber fly, ants, green lace wing, damsel flies/dragon flies, flower bugs, shield bugs, lady bird beetles, ground beetle, predatory cricket, braconids, trichogrammatids, NPV, green muscardine fungus Spray any one of the following insecticide quinolphos 2ml/lit of water chloropyriphos 3ml/lit of water Imidacloprid 2ml/lit of water
  • Larvae feed on the foliage, prefers flowers and buds
  • When tender leaf buds are eaten symmetrical holes or cuttings can be seen upon unfolding of leaflets

Identification of the pest :

  • Eggs: S pherical in shape and creamy white in colour, present singly
  • Larva: Shows colour variation from greenish to brown. It has dark brown grey lines 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. Forewings are olive green to pale brown with a dark brown circular spot in the centre. Hind wings are pale smoky white with a broad blackish outer margin.

Management :

  • Deep summer ploughing
  • Intercrop one rows of red gram for every 5 or 6 rows
  • Install pheromone trap @ 5/ha
  • Use Trichogramma chilonis @ 1 lakh/ha or Chrysoperla carnea @ 50000/ha at 40 and 50 days after sowing of groundnut can effectively check the pest
  • Apply HaNPV @ 250 LE/ha or B.t ( Bacillus thuringiensis ) 1 kg/ha or 5% NSKE for monitoring eggs and early instar larvae
  • Conserve the bio control population of spiders, long horned grasshoppers, preying mantids, robber fly, ants, green lace wing, damsel flies/dragon flies, flower bugs, shield bugs, lady bird beetles, ground beetle, predatory cricket, braconids, trichogrammatids, NPV, green muscardine fungus
  • Spray any one of the following insecticide
  • quinolphos 2ml/lit of water
  • chloropyriphos 3ml/lit of water
  • Imidacloprid 2ml/lit of water