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Cotton bollworm

American bollworm: Helicoverpa armigera (Hubner)  (Lepidoptera: Noctuidae)


  • Eggs :Laid single and in all parts of plant and yellowish, shiny
  • Adult:Stout, yellowish brown with a dark speck area on the forewings, which have grayish wavy lines and a black kidney shaped mark whereas the hind wings are whitish with blackish patch along the outer margin. 
  • Larva:35 mm long, greenish brown with dark gray yellow stripes along the sides of the body.


            Eggs                                          Larva                                   Pupa                                     Adult

Damage symptoms:

  • Feeds on squares, flowers and small as well as big sized bolls.
  • Flaring up symptoms and dropping of squares.
  • Entry holes on boll.
  • Bad opened bolls


                                                                          Damaging symptom

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