Two smooth green larvae on lighter-green leaf. Larger larva below is dark green with faint yellow line down center of back. Small larva above is lighter green.

Figure 29. Imported cabbageworms on cabbage. The caterpillar at bottom is fully grown (about 1 1/4 inches long).

Two smooth green larvae on lighter-green leaf. Larger larva below is dark green with faint yellow line down center of back. Small larva above is lighter green.

Photo by Whitney Cranshaw, Colorado State University, Bugwood.org.