The larvae of several Lepidoptera are collectively called green fruitworms because of their general appearance and tendency to damage apple and pear fruit. One species, Orthosia hibisci, which will be referred to as the green fruitworm (GFW), is currently a serious pest in commercial orchards. It is native to and a pest of deciduous fruits across North America. The larvae feed on a variety of deciduous shade, forest, and fruit trees and shrubs. The GFW has only one generation annually.