Armyworms on Lettuce: Signs & Control

Armyworms is a common pest of lettuce. Here's how to spot the damage and stop it organically-first.

Signs to look for on Lettuce

Leaves chewed from edges; frass; groups of larvae.

How to control it (organic-first)

BT; hand-pick; row covers.

More on Armyworms: Ragged turf; clusters of caterpillars; birds feeding. Prevention: Monitor with pheromone traps; maintain dense turf.

Armyworms on other plants

ZoneFig pest guidance reflects common extension-service recommendations. Always confirm the pest before treating and follow any product label. Verify locally.

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