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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Caterpillars, maggots, grubs, and similar immature insects - 1/4 inch - 1/2 inch long > Imported cabbageworm

Imported cabbageworm
Photo Credit: Whitney Cranshaw, Colorado State University, Bugwood.org Imported cabbageworm
Photo Credit: Russ Ottens, University of Georgia, Bugwood.org

Imported cabbageworm
Artogeia rapae
Size: Up to 1 inch long

Where/When: The larva prefers cole crops, such as cabbage, cauliflower, broccoli, kale, rutabaga, radishes, turnips, collards, horseradish, and other crucifers. The larva is active from June until the end of the growing season.

Significance: Damage may result in stunted growth; reduced yield; death of young seedlings; and malformation of cabbage, broccoli or cauliflower.
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