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How to Manage Pests

The UC Guide to Healthy Lawns

Cutworms and armyworms — Life cycle

Adult moths fly at night and lay eggs on the leaves of grasses or nearby plants. Larvae feed at night on leaves and crowns and hide in the thatch layer or in a burrow in the soil during the day. Larvae pupate in the soil. There may be several generations per year.

Armyworm eggs

Armyworm larva

Armyworm pupa

Armyworm pupa in soil cell

Statewide IPM Program, Agriculture and Natural Resources, University of California
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