IPMP3.0, Oregon State University, Copyright 2000

Variegated Cutworm



Life Cycle


Sampling and Action Threshold

Development Model

Fact Sheet (requires Acrobat Reader 3.x or above to read and print. Click below to download the free "Reader")

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Registered Insecticides


[Insect Management]


Variegated Cutworm Larva Link to large image (162K) of variegated cutworm adult
Variegated Cutworm Larva Variegated Cutworm Adult
Link to large image (156K) of variegated cutworm eggs and larvae Mature larvae are 40 to 50 mm long. The body is mottled with dark brown or black and marked along the side with a yellow band. There is a "w-shaped" mark on the top of the last abdominal segment, and yellow spots on the top of segments 4 to 7. Adults have a wingspan of about 45 mm. This cutworm overwinters in soil or under trash. Larvae mature in late April and May and pupate in the soil. Adults emerge in late May and June and lay eggs. Larvae feed for 4 to 6 weeks, and are most damaging in mint during July and August. There are two generations each year in the northwest.  Select samping and action threshold to calculate damage levels.

Variegated Cutworm Eggs and Larvae

View the Fact Sheet for More Information

This section contains information on the management of variegated cutworm in peppermint.  The Fact Sheet contains specific information on identifcation and biology of this pest (requires Acrobat Reader).  Select a category from the contents menu for additional information on sampling, development, and management of variegated cutworm.