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Infestation of pink bollworm in cotton

Adult is a small, thin, gray moth with fringed wings. Young larvae is white in color, which is exactly the color of cotton fiber and thus these are not clearly visible, later turns pink. The female moth lays eggs in cotton bolls and when the larvae emerge from the eggs, they inflict damage through feeding. They chew through the cotton lint to feed on the seeds. Since cotton is used for both fiber and seed oil, the damage is twofold. It damages flowers, twigs and bolls. Infested bolls don’t open and are small in size.

Control:

Pheromone traps should be used to monitor the insects. PB rope should be used as soon as the cotton buds start, which is effective for its control around 100 days. Early cultivation should be avoided. For the next season, the affected bolls should be destroyed by deep plowing the soil and Lambda Cyhalothrin 2.5EC at 330 ml or Triazophos 40EC at 1000 ml per acre should be used.

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