Conquering Silverfish: DIY Repellents & Control Recipes Silverfish are a common household pest that feast on things like wallpaper glue, bookbinding, plaster, paper, drywall, carpet and other materials so although your home is unlikely to suffer extensive structural damage, common household items can be destroyed if these critters are left unchecked. Try A Few Herbs & Spices As Natural Silverfish Repellents Environme