Why Silverfish Are Invading Tennessee Homes & How to Get Rid of Them

Why Silverfish Are Invading Tennessee Homes and How to Get Rid of Them

19 Dec 2025

Imagine waking up, walking to the bathroom, and spotting a shiny, strange-looking bug running across the floor. It moves like a fish, but it’s not one. It’s a silverfish. If you live in Tennessee, you are not the only one who’s seen these bugs. Silverfish are showing up in more and more homes across the state.

Silverfish don’t bite people or make you sick, but seeing them can be unsettling. What’s worse, they can damage your things at home. If you know why they are in your house and what you can do about it, you will have a better chance of keeping your home cautious.

This guide will show you why silverfish like living in Tennessee, what brings them inside, and some easy steps you can take to get rid of them for good.

What Are Silverfish Bugs?

Silverfish are small, wingless bugs that look shiny and move quickly, almost like a fish. They have been around for a very long time—even longer than the dinosaurs. Grown-up silverfish are usually between half an inch and an inch long. They have two long feelers on their head and three thin “tails” sticking out from their back end.

These bugs like to come out at night and stay hidden during the day. They love dark, damp places like bathrooms, basements, or closets. Silverfish can run fast, which makes them hard to catch. Because their bodies are flat, they can squeeze into small cracks and tiny gaps in your home.

Silverfish in Tennessee Homes

Why Silverfish Like Tennessee Homes

You might be wondering why these bugs like Tennessee homes so much. The main reason is our weather and where we live.

Humid Air

Tennessee is known for its wet and sticky weather. Summers are hot and humid, and there’s still plenty of moisture even in winter. Silverfish need lots of damp air to live—usually between 75% and 95% humidity. When the air outside is wet, places like your crawl spaces, basements, and attics get damp, too. This makes your home the perfect place for silverfish to move in.

Changing Seasons

Tennessee’s weather changes a lot throughout the year. When it gets cold in the fall and winter, bugs like silverfish look for warm places to hide. Your heated home feels comfortable for them. During the really hot and dry times of late summer, they may also come inside to find more moisture if their spots outside get too dry.

Plenty of Food Inside

Silverfish have simple tastes. They love to eat foods high in sugar and starch. Tennessee has lots of plants outside, but inside your house, there are even better things for them to snack on. Silverfish will eat things like:

  • Paper and book bindings
  • Glue and adhesives
  • Wallpaper paste
  • Clothing (especially silk, cotton, and linen)
  • Dry pantry goods like flour and oats

How to Tell If You Have Silverfish

Because silverfish come out at night and hide well, you might have a problem before you ever see one. Watch for these signs:

  • Feeding Marks: Irregular holes or notches along the edges of paper, wallpaper, or cardboard boxes.
  • Yellow Stains: You might notice yellowish dust or stains on clothing, books, or papers. These are often fecal spots.
  • Shed Skin: As they grow, silverfish molt. You may find small, transparent skins in corners or on windowsills.
  • Live Insects: Seeing one silverfish usually means there are many more hiding nearby.

How Silverfish Can Hurt Your Stuff

Even though silverfish don’t hurt people, they can harm your things at home. They like to eat items made from starch, which means they may ruin your photo albums, important papers, and favorite books.

Silverfish can also mess up the way your home looks. They like to eat the glue that holds up wallpaper. If you notice your wallpaper peeling or bubbling, silverfish might be the reason. In your closet, they can chew holes in your favorite clothes, just like moths do.

Easy Ways to Get Rid of Silverfish: Step-by-Step Guide

Getting rid of silverfish takes a few different steps. You need to take away their food, lower the moisture in your home, and block ways for them to get inside.

1. Get Rid of Extra Moisture and Damp Air

This is the most important step. If you keep your home dry, silverfish won’t be able to live there.

  • Dehumidifiers: Install dehumidifiers in damp areas like basements, crawl spaces, and attics. Aim to keep indoor humidity below 50%.
  • Ventilation: Ensure your bathroom and kitchen fans are working correctly to vent steam outside.
  • Fix Leaks: Repair any leaky pipes or faucets immediately. Even a small drip can provide enough moisture for a colony.

2. Take Away Their Food

Don’t let them have easy snacks.

  • Seal Dry Goods: Store flour, sugar, cereals, and pet food in airtight glass or plastic containers.
  • Declutter Paper: Recycle old newspapers, magazines, and cardboard boxes. Do not store paper items on the floor.
  • Protect Clothes: Store off-season clothing in sealed plastic bins rather than cardboard boxes.

3. Block Places Where Silverfish Get In

Keep them from getting inside.

  • Caulk Cracks: Seal cracks around baseboards, windows, and door frames.
  • Seal Pipe Gaps: Use expanding foam or steel wool to close gaps where pipes enter your home.
  • Check Exterior: inspect your foundation for cracks and seal them.

4. Simple Ways to Repel and Trap Silverfish

If you only see a few silverfish, you can try some simple do-it-yourself tricks.

  • Sticky Traps: Place sticky traps in corners or near suspect areas to monitor activity.
  • Cedar Shavings: Silverfish dislike the smell of cedar. Using cedar blocks in closets can help deter them.
  • Diatomaceous Earth: Sprinkle food-grade diatomaceous earth in areas where you suspect activity. This natural powder dehydrates the insects upon contact.
Silverfish Pest Expert

When to Call in a Pest Expert

Sometimes, trying to get rid of silverfish by yourself just doesn’t work. Silverfish are tough and can make lots of babies quickly. A mother silverfish can lay up to 60 eggs at once, hiding them in small cracks you can’t see or reach. If you keep seeing silverfish after doing your best, or if your things are getting ruined, it’s a good idea to call a pest expert.

Pest control experts have better tools and stronger treatments to get rid of silverfish. They also know how to find hidden damp spots you might have missed, and can help protect your Tennessee home so silverfish don’t come back.

Wrapping Up

Silverfish aren’t just creepy, they can ruin your favorite things at home. Because Tennessee is humid, it’s easy for these bugs to live and hide here. If you keep your home dry, get rid of their food, and block places where they get in, you can make it hard for silverfish to stick around.

But if you can’t get rid of these bugs on your own, don’t let them take over your house. Getting help from a silverfish pest expert can make sure your home stays free of silverfish and your things stay cautious.