Commonly called evergreen bagworm. Usually a pest of arborvitae and cedar in South Carolina, but sycamore and other plants may be infested in the North. Eggs overwinter in the bag; larvae hatch in the spring about mid-May. They immediately make new cases and feed and move about freely within the bag. They molt about four times and then fasten bag to twig and silken thread. The last summer male moth flies to mate with a female, which then lays 500 to 1,800 eggs in the pupal case. One generation occurs each season.
