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Crop Protection :: Cash Crop :: Pest of Cotton

  Leaf roller: Sylepta derogata
 Symptom of damage
  • Leaves rolled in the form of trumpets fastened by silken threads
  • Marginal portion of leaves eaten away
  • Plants defoliated in severe attack
Rolled leaves
Larva
Adult

Identification of the pest

  • Larva- Bright green (glistening) with dark head and prothoracic shield
  • Adult- Moth with yellow wings having brown wavy markings

Managment

  • Collection and destruction of sheded plant parts
  • Hand picking and destruction of grown up caterpillars
  • Spray any one of the following insecticides
    • chlorpyriphos 20 EC 2.0 l/ha
    • dichlorvos 76 WSC 1.0 l/ha

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