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Green "Cutworms" on Basil: Actually Hornworms—Use Bt

Green caterpillars making holes in sweet basil. Asks for control beyond hand-picking.

Correction: Not Cutworms

  • Cutworms cut stems at soil line.
  • Hornworms (likely tomato/tobacco hornworm) chew holes in leaves.

Same Solution: Bt

  • Bacillus thuringiensis (Bt): Powder (Dipel, MVP, Green Step).
  • Dust foliage & plant base. Organic, safe.
  • Caterpillars eat, stop feeding, die in days.
  • Reapply after rain.

Works on all caterpillars/worms. Diatomaceous earth also effective.

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