Silverfish are small, wingless insects that have survived for millions of years. Typically around one and a half inches long, their silvery-gray bodies and quick, wriggling movements make them easy to recognize once spotted. Though they don’t bite or spread disease, their presence often signals excess moisture and available food sources — conditions that make bathrooms, basements, kitchens, and laundry rooms especially inviting.
These pests are attracted to starchy and sugary materials such as paper, cardboard, fabric, and even crumbs. Over time, they can cause minor damage to books, wallpaper, clothing, and pantry items. Common signs of silverfish activity include tiny holes in paper or fabric, yellowish stains, shed skin, or small black droppings. If you notice peeling wallpaper or other subtle damage, it’s a sign they’ve made themselves at home — usually in dark, humid spaces.
To stop an infestation, address moisture first. Use dehumidifiers, improve airflow, and fix any leaks. Store dry goods in sealed containers, and remove clutter like old newspapers or cardboard boxes. Seal small gaps or cracks where silverfish could hide, and consider natural deterrents such as diatomaceous earth, boric acid, lavender, or cedarwood.
You can also place sticky traps to reduce their numbers. However, prevention is key. Keep your home clean, dry, and well-ventilated. Regularly vacuum corners, baseboards, and closets, and avoid leaving food or damp items exposed. By managing humidity and limiting their access to food, you’ll create an environment where silverfish can’t thrive — keeping your home comfortable and pest-free.