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Pink bollworm — કપાસ

The most damaging pest of cotton; larvae bore into bolls and feed on seeds.

Scientific name: Pectinophora gossypiella · Pests

Symptoms

Rosetted flowers, exit holes on bolls, stained lint and damaged seeds. Bolls open prematurely.

How to monitor

Install 5 pheromone traps per hectare from squaring. Threshold: 8 moths/trap/night for 3 nights, or 10% damaged bolls.

Remedies & treatment

  • Cultural

    Timely sowing, destroy crop residue after harvest, avoid extending the season (no ratoon).

  • Biological

    Release Trichogramma; conserve natural enemies; use pheromone mass-trapping.

  • Chemical

    Spray only on threshold. Rotate modes of action to avoid resistance.

    Products:
    Profenophos / Thiodicarb / Chlorpyriphos (per label)
    Dose:
    As per product label
    When:
    Evening spray at threshold; repeat after 12–15 days if needed.

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