Do They Cause Damage?
Silverfish are primarily a pest of paper. They feed on starches and cellulose in glazed or sized paper, wallpaper paste, book bindings, gummed labels and envelopes, and photographs. Their feeding activity can damage these materials.
Do I Have An Infestation?
The live insects can be found in any room in the home and are mostly nocturnal. Silverfish flourish in both moist and dry conditions. Attic areas are a prime habitat especially if they are used for storage. If the roof is covered by cedar shake shingles, large numbers of silverfish can make their way into cracks and crevices between shingles their home. Their fecal material, which resembles a fine black sand, can be seen on the insulation below. They do not cause any damage to the roof or structure.
What Can Masters Touch Do?
Residual treatments in activity and harborage areas can reduce populations to a manageable level. Complete elimination of silverfish could be achieved with structural fumigation however the effort and expense is impractical for something that does cause structural damage.
How Can You Help?
Reducing moisture around the exterior, sealing cracks and crevices inside and outside can make it more difficult for silverfish to access the structure.
Silverfish will molt up to 14 times before reaching maturity at 2-3 years old. Adults can live up to 5 or more years.