Green Gram Spiny pod borer

Green Gram Spiny pod borer : Etiella zinckenella

Symptoms of damage:

  • Dropping of flowers and young pods
  • Older pods marked with a brown spot where a larvae has entered

Identification of the pest:

  • Larval – greenish initially, turns pink before pupation.
  • It has 5 black spots on the prothorax


  • Brownish grey moth
  • Prothorax – orange in colour
  • Fore wing – has a white stripe along the anterior margin.


  • Conserve natural enemies like Tetrastichus sp., Bracon hebetor, Phanerotoma sp. and P. hendecasisella.
  • ETL 10% affected parts
  • Deep summer ploughing in 2-3 years to eliminate quiescent pupa.
  • Early sowing, short duration varieties.
  • Avoid closer plant spacing.
  • Grow tall sorghum as comparison crop to serve as biological bird perches
  • Collect and destroy larvae and adults to the extent possible
  • Install pheromone traps at a distance of 50 m @ 5 traps/ha for each insect pest.
  • Install Bird perches @ 50/ha.
  • The setting of light traps (1 light trap/5 acre) to kill moth population.
  • Control is achieved by releasing of Trichogramma chlionis at weekly intervals @1.5 lakh/ha/ week for four times.
  • Conserve green lacewing, predatory stink bugs, spider, ants
  • Application of NPV 250 LE /ha with teepol 0.1% and Jaggery 0.5% thrice at 10 – 15 days interval commencing from flowering stage. (Note: Insecticide / Ha NPV spray should be applied when the larvae are in early stage).
  • Bt @ 600 g, neem oil/ pungum oil 80 EC @ 2ml/lit
  • Spray NSKE 5% twice followed by triazophos 0.05%.
  • Apply any one of insecticides at 25 kg/ha quinalphos 4D, carbaryl 5D
  • Spray insecticide Quinalphos 25 EC @ 1000 ml/ha.



  • TamilNadu Agritech Portal
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