Vegetable Program
Insect Management

Cross-Striped Cabbage Worm

Evergestis rimosalis

Formally restricted to the South, this insect is now a serious problem on Brassica crops in southeastern New England. It has 2 to 3 generations per year and is most abundant on late-season plantings. Unlike the three major caterpillar pests on Brassicas, the cross-striped cabbageworm (CSC) lays its eggs in batches (3 to 25) rather than singly. Egg batches are yellow, flattened, and attached to the lower leaf surfaces. Larvae grow to 3/4"-long in 2 to 3 weeks. The caterpillars are light bluish-grey on top and green underneath, with numerous black bands across their backs and a yellow line down each side. Larvae produce small holes in leaves until only veins remain or target terminal buds and sprouts or may burrow into heads. Plants with larvae are often completely skeletonized. Adjacent plants may be left undamaged. Plow under debris after harvest and control wild mustard and Shepard’s purse to help minimize pest population. Spray if 5% of the plants are infested with CSC. Use selective insecticides to preserve parasitic wasps.

For Current information on production methods (including varieties, spacing, seeding, and fertility), weed, disease, and insect management, please visit the New England Vegetable Management Guide website.

Below you will find additional information on managing this insect, including photos, fact sheets, articles, and power point presentations, when available.