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Crop Protection :: Oil Seeds :: Pest of Castor

Capsule Borer: Conogethes (=Dichocrosis) punctiferalis


Symptoms of damage

  • Capsule with bore holes
  • Damaged capsules webbed together
  • Peduncle and capsules showing galleries made of silk and frass

 

Identification of the pest

  • Larva: pale greenish with pinkish tinge and fine hairs with dark head and prothoracic shield
  • Adult: yellowish with black spot

Management

  • Spray any one of the following insecticides, thrice from flowering at three weeks interval
    • Malathion 50 EC 2.0 l/ha
    • Carbaryl 50 WP 2.0 kg/ha in 1000 l of water
 

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