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Food sources left open
Silverfish need moisture to survive. If you dry out your home, you’ll make it uninhabitable for them.
Use a dehumidifier in damp areas
Fix any leaks promptly
Improve airflow in basements and attics
Silverfish eat paper, glue, and starch. Deny them access.
Keep pantry foods in airtight containers
Vacuum regularly, especially in corners and baseboards
Step 4: Seal Entry Points
Caulk cracks and gaps around windows, doors, and foundations
Install door sweeps on exterior doors
Step 5: Use Traps and Deterrents
Cedar shavings: Place in drawers, closets, and bookcases
Diatomaceous earth: Sprinkle food-grade DE in corners and cracks—it dehydrates and kills insects
Lavender, cinnamon, or citrus oils: Silverfish hate strong scents
Sticky traps: Place in areas where you’ve seen activity
Step 6: Chemical Treatments (If Needed)
If natural methods don’t work, you can try:
Insecticides: Sprays containing pyrethrin or permethrin
Boric acid: Dust into cracks and crevices (keep away from pets and children)
Professional pest control: If the infestation is severe
Preventing Future Infestations
Once you’ve cleared them out, keep them from coming back:
Reduce humidity year-round
Declutter regularly
Store items in plastic, not cardboard
Inspect secondhand items before bringing them into your home
Maintain a regular cleaning schedule
A Note on Silverfish vs. Firebrats
People often confuse silverfish with firebrats. Both are similar in appearance, but there are differences:
Silverfish
Firebrat
Silvery-gray color
Brownish or mottled gray
Prefers cool, damp areas (bathrooms, basements)
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