Symptoms and Damage:
Silverfish are found in basements, kitchens, sinks, bathtubs, in bookcases, on closet shelves, behind baseboards, wallpaper, window or door frames, wall voids, and sub-floor areas. Attics are a favorite place for silverfish due to the abundant food sources due to the recycled blown in paper insulation and storage boxes.
You may see them trapped in sinks and bathtubs because they enter seeking moisture and are unable to climb a slick vertical surface to escape.
Firebrats will be found in similar but warmer areas.
Because silverfish and firebrats molt during their adult lives their cast skins may be a useful detection too.
Silverfish and firebrats diets are high in protein, sugar, or starch, including cereals, moist wheat flour, starch in book bindings, and paper on which there is glue or paste.
Firebrats and silverfish can damage book bindings, wallpaper, paper goods and dry foods. They may eat holes, irregular shaped in the wallpaper to get to the paste. Silverfish may bite very small holes in various fabrics, including cotton, linen, and silk, even though they cannot digest either linen or cotton.
They may leave a yellowish stain on fabric.
Outside, they may be found in nest of insects, birds, mammals, and under tree bark and mulch They can be found in wood shingles or sidings on houses, they may enter the home from these.