Plaster Bagworm

Plaster bagworm

Plaster bagworms are similar in appearance to clothes moths. The larvae live inside a flattened gray watermelon-shaped case that is about ½ inch long. These cases are made of silk fibers, lint, paint fragments, and debris. The case has an opening on either end so that the larva can move around and feed from either end. Plaster bagworms can be easily seen on light-colored walls and more commonly hanging down from the ceiling in garages and underneath buildings. They feed on spider webs and fabrics made of natural fibers. The control of plaster bagworms is not difficult, its based on good housekeeping and removal of all spider webs from visible areas.