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How to Manage Pests

Pests in Gardens and Landscapes

Cutworms

Cutworms are dull-colored caterpillars ranging in length from 1 to 2 inches when fully grown. The color and markings of their bodies blend well with the soil, where they are frequently found, especially during the day.

Damage

Cutworms feed on blossoms and leaves of many ornamental plants. New shoots may be eaten partway through.

Solutions

Cutworms are pests only in the spring. Pesticides are not very effective and not recommended. Clip and dispose of infested foliage and blossoms. Provide proper fertilization and water, protect roots and trunks from damage, and prune trees properly when needed.

Cutworm larva
Cutworm larva

Cutworm damage to rhododendron
Cutworm damage to rhododendron


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