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Pest & Disease Library · Solutions

Natural Armyworm and Cutworm Control in Vegetables

Armyworms and cutworms are caterpillars that defoliate crops and sever seedlings at the soil line, often overnight. This page covers armyworms & cutworms in vegetables.

Common crops affected

Why it matters

They can destroy stands of seedlings and strip foliage fast, so early larval control prevents the worst losses.

When it appears

Warm season; cutworm damage at establishment, armyworm flushes later.

How to identify it

  • Seedlings cut off at the soil line (cutworms)
  • Ragged defoliation and chewed leaves
  • Caterpillars and frass on or under plants

How to manage it

  1. Scout at dusk; clear weedy harbourage.
  2. Apply Larva Control at the start of larval activity; rotate with Larva BioControl.

Recommended Vegalab program

RoleProductUse
Primary controlLarva ControlBroad-spectrum natural larvicide
Rotation partnerLarva BioControlBiological larvicide

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