Silverfish are common household pests that can damage books, papers, photos, and other cherished belongings. While they don’t bite or spread diseases, getting rid of them will go a long way to protecting your personal property. 

This guide provides effective tips for controlling these insects using less-toxic methods to keep homes and families safe. Check out this video for a visual guide to silverfish and how to prevent and deal with infestations:

What Are Silverfish?

Silverfish (Lepisma saccharina) are small, wingless insects named for their silvery, fish-like appearance and quick movements. Adults measure about ½ to 1 inch long and have long antennae and three tail-like appendages. They thrive in warm, humid environments and feed on starchy substances such as paper, glue, carpet fibers, and clothing starch.

Signs of a Silverfish Infestation

Recognizing silverfish signs early helps prevent extensive damage. Look for small, teardrop-shaped brown or yellow stains from their excrement, along with damage to paper materials including holes or notches on books, documents, wallpaper, photos, and cardboard. 

You might spot the insects themselves, especially at night, in basements, attics, bathrooms, kitchens, and offices.

An infestation often signals underlying moisture issues, such as leaks or condensation problems. Regular inspection of moisture-prone areas can help catch problems early.

How To Get Rid of Silverfish Naturally

Homeowners can control silverfish without harsh insecticides. Natural methods often prove effective when you implement them consistently. Below are several proven approaches to consider before turning to chemical solutions.

Use Desiccant Dust

Diatomaceous earth kills silverfish by damaging their exoskeletons, leading to dehydration. Apply a fine layer along baseboards, in cracks and crevices, and under appliances where you notice activity. Wear a mask during application and keep the area dry for maximum effectiveness.

Install Pheromone Sticky Traps

These traps use synthetic silverfish pheromones to attract and capture the insects. Place them along baseboards, under appliances, and in other potential hiding spots. Regularly replace them to make sure you’re continually protected.

Use Essential Oils

Create a natural repellent spray using eucalyptus, peppermint, cinnamon, or cedar oil mixed with water. Apply the mixture along baseboards, windowsills, and areas showing silverfish activity. Test on inconspicuous areas first to prevent staining.

Fix Moisture Issues

Since silverfish need high humidity, fixing moisture problems significantly reduces their numbers. Inspect your home for leaky roofs, pipes, and areas of condensation. Use dehumidifiers to maintain indoor humidity below 50% and ensure proper ventilation in bathrooms, kitchens, and laundry areas.

Remove Clutter and Seal Entry Points

Eliminate hiding spots by disposing of unnecessary paper items and storing essentials in airtight containers. Apply caulk around baseboards, cabinets, and pipes, using copper mesh or steel wool for larger gaps. Regularly inspect and maintain these seals to ensure you’re continually protected.

When To Call a Pest Control Company

According to Angi, professional treatment typically costs between $200 to $600 and includes a thorough inspection to identify entry points and refuge areas. When selecting a pest control company, look for one that uses Integrated Pest Management (IPM) principles to minimize chemical use while maximizing effectiveness.

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Preventing Silverfish Reinfestations

After you’ve successfully treated for silverfish, monitor humidity levels and use dehumidifiers to maintain indoor humidity below 50%. Address plumbing leaks promptly and ensure proper ventilation in attics, basements, and crawl spaces.

Store important documents and photos in airtight plastic containers, and consider using cedar or lavender sachets in storage areas as natural repellents. Regular cleaning and decluttering removes potential food sources and hiding places.

FAQs About How to Control Silverfish in Your Home

What are natural remedies for getting rid of silverfish?

Natural remedies for silverfish include diatomaceous earth, cedar shavings, and sachets of dried lavender. These natural options are typically safe for pets and humans.


Are there chemical treatments for silverfish infestations?

You can buy insecticides for silverfish control. Follow the manufacturer’s instructions and consider professional pest control for severe infestations.


How can I protect my clothing and books from silverfish damage?

Store clothing and books in sealed plastic containers or bags. Use cedar or lavender sachets in storage areas to repel silverfish and keep your belongings safe.


Editorial Contributors
photo of Katelynn Ward

Katelynn Ward

Katelynn Ward is a home warranty writer at Today’s Homeowner. She attended Eastern Kentucky University, where she earned her Bachelor’s degrees and her Master’s Degrees.

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