What Is the Common Silverfish?
Common silverfish (Lepisma saccharina) are primitive, wingless insects easily recognized by their silvery-gray, fish-like appearance and wriggling movement. They have long antennae and three tail-like appendages, and adults measure about 12–19 mm in length.
Habitat & Behavior
Silverfish are nocturnal and prefer dark, humid environments. In North Carolina homes, they are commonly found in bathrooms, basements, kitchens, laundry rooms, and attics. They can live for several years and survive long periods without food.
These insects feed on starchy materials including book bindings, wallpaper paste, photographs, paper, cotton, linen, and cereal products. They can cause significant damage to important documents, books, and stored clothing over time. Silverfish may also feed on the glue in cardboard boxes.
Prevention & Control
Control begins with reducing humidity through dehumidifiers and improved ventilation. Fix plumbing leaks, remove standing water, and use exhaust fans in bathrooms. Store books, papers, and clothing in sealed plastic containers rather than cardboard boxes. Caulk cracks and crevices in bathrooms, kitchens, and basements. Sticky traps can help monitor populations, and professional treatment targets harborage areas directly.