Silverfish
Lepisma saccharina
How do you get rid of silverfish in a Southern California home?
Silverfish need humidity to survive, so the first step is drying out the spaces they hide in — run a dehumidifier in basements and laundry rooms, improve attic ventilation, fix leaks, and seal cracks where moisture collects. Store books, papers, and natural-fiber clothing in sealed plastic bins instead of cardboard. For a persistent or widespread infestation, a licensed technician can treat the harborages and cracks where they breed and break the lifecycle.
What are Silverfish?
Silverfish are primitives insects that thrive in high-humidity environments. While they don't bite or carry disease, they can cause significant damage to personal belongings by eating the adhesives in books, wallpapers, and natural fibers.
Key Takeaways
- Silverfish are wingless, silvery-grey insects with a tapered, fish-shaped body, three long tail bristles, and a quick, flowing motion across floors and walls.
- They do not bite people or carry disease — the real damage is to belongings, as they feed on the starches in paper, book bindings, wallpaper paste, and natural fabrics.
- In Southern California they gravitate to damp, dark spaces: attics, basements, laundry rooms, and under sinks where humidity builds up.
- Telltale signs include small irregular holes or yellowish stains on paper and fabric, fine pepper-like droppings, and shed skins in storage areas.
- Because silverfish are moisture-driven, lasting control depends on reducing humidity and sealing harborages rather than spraying alone.
Identification & Signs
- Silvery-metallic or grey color
- Tapered, fish-shaped body
- Three long "bristles" at the tail end
- Quick, flowing movement
Why are they a problem?
Silverfish love damp, cool, and dark places. Attics, basements, and laundry rooms are their favorite haunts. They feed on starch and sugar found in paper, glue, and certain fabrics.
Prevention and Home Tips
Use a dehumidifier in damp areas like basements
Ensure proper attic ventilation
Store old books and clothes in plastic bins
Clean out gutters and ensure water flows away from the house
How Xtermicon Treats for Silverfish
Our treatment focuses on both the active insects and the harborages they use. We treat attic spaces and cracks where moisture accumulates to disrupt their lifecycle.
Frequently Asked Questions
Are silverfish dangerous or do they bite?
No — silverfish do not bite people or pets, and they do not carry or transmit disease. They are a nuisance pest rather than a health threat. The genuine concern is property damage: they feed on the starches and adhesives in books, important papers, photographs, wallpaper, and natural-fiber clothing, leaving behind small holes and yellowish stains. Stored items in damp attics, garages, and closets are the most common casualties.
What attracts silverfish into my house?
Silverfish are drawn to humidity and starch. In Southern California they settle into damp, dark spots like attics, basements, laundry rooms, and the cabinets under sinks. They feed on the sugars and starches in paper, glue, cardboard, and certain fabrics, so stacks of old books, magazines, and cardboard boxes in a humid space are an open invitation. Poor ventilation and moisture from leaks or clogged gutters make a home especially appealing.
Can I get rid of silverfish myself, or do I need a professional?
Minor sightings often improve with moisture control — running a dehumidifier, ventilating the attic, fixing leaks, and moving books and clothing into sealed plastic bins. Those steps remove the conditions silverfish depend on. If they keep reappearing or you find them throughout the home, a licensed technician can treat the cracks and harborages where they breed and break their lifecycle, and many Southern California homes stay protected with recurring service that keeps the population from rebuilding.
Specialists you
can count on.
Xtermicon was founded in 2015 with one focus: protect Southern California homes and businesses from the pests that threaten them. The name says it all — eXterminate TERmites & pest CONtrol — and that's exactly what we do. We're a family-owned team specializing in termite control, pest control, and rodent exclusion. From West LA and East LA to the beach cities and Orange County, we're local neighbors who treat your property like our own.