Cabbage butterflies (Figure 1), which are the adult stage of the imported cabbageworm are among the first butterflies to appear in spring. They will visit a range of host plants for nectar, but females lay their eggs on many plants in the mustard family.
Imported cabbageworms are serious pests of cabbage and broccoli. The fuzzy light green larvae (Figure 2) are easy to overlook. Information on cabbage insects is available in Cabbage Insects (EntFact-300).
By Lee Townsend, Extension Entomologist