How to Remove Silverfish from Clothes and Books in Closet?

silverfish in closet

Silverfish in and of themselves are harmless, but they are not desirable to have in your home.

Their slimy appearance and feasting on starchy materials, particularly the paper in books means you want them out of your home as soon as possible.

If you find silverfish present in your home, there are actions you can take to get rid of them.

Repelling, trapping, and killing silverfish will reduce their population, but you will need to be careful when using pesticides or poisons inside the home.

Plus, you may have to experiment with different techniques to get rid of them.

What are Silverfish?

Silverfish are insects that are distinguished by their scaly appearance which somewhat resembles fish.

They are about a half-inch long, have two antennae located on their heads, three prongs on the tails, and will wriggle about as they move.

The young ones are mostly silver in color, although as they age the color will turn more blueish.

While silverfish are often seen around drains, such as in the sink, silverfish are normally hiding in the closet amid the food sources of their choice.

Silverfish can also breed quite rapidly with a single pair producing up to 20 eggs per day with the larvae reaching adulthood in three to four weeks.

Left unchecked, silverfish can overrun your home relatively quickly.

Why are They in Your Closet?

Because silverfish are relatively slow, they prefer dark, damp areas where they can breed.

Plus, the closet has plenty of food sources, especially if you store books, boxes, and the like.

This is because silverfish are attracted to materials that taste like paper or wood, especially wet wood.

It is why you will often find them around drains because they enjoy the moisture that is present.

In addition to the closet and around drains, you will often find them in basements, attics, the laundry room, and especially in places where they can hide.

Removing Silverfish from Clothes and Books

While pesticides can kill silverfish, they will do more damage than good when trying to remove them from books and your closet.

Instead, you will need to use methods that draw away the silverfish from your desired items.

What follows are a few safe methods and steps that will reduce their population.

1- Inspection

To remove silver fish from your closets, you will need to see where they are exactly located.

Since silverfish are nocturnal, you may have to wait until dark before you can surprise them.

More likely, you will see where they have been as they leave a trail of excrement that appears like black pepper amid the dark, damp areas where they move.

Another indication is the small holes they create in paper, cardboard, and wet wood.

In addition, silverfish will shed their skin often, so you may find small casts of their skin left behind.

The bathroom and basement are good places to look.

Keep in mind that silverfish in your home will also find their way to the books and clothes inside the closets as they provide food and cover.

2- Trapping

This is one of the most common ways to get rid of silverfish by providing them with a tasty treat inside a trap.

a) Mason jar

You can make a simple trap by putting some old newspapers inside an open mason jar.

Simply replace the lid once the silverfish are inside and dispose of the insects.

You can also use a mason jar with bread as bait along with masking tape to make it easier for the silverfish to enter.

In both cases, you will need to wrap the mason jar in masking tape up to the top.

This provides enough friction for the silverfish to climb to the top.

But once they go inside the jar and start eating the bread, the sides will be too slippery for them to get out.

Put the trap out at night inside your closet, then check it in the morning.

This is an old, but effective trap that will reduce the population of silverfish without using any pesticides or poisons.

b) Damp newspapers

Another cheap, effective trap is newspapers.

Roll up a newspaper and secure the ends with rubber bands.

Dampen the newspaper and leave it out in the closet or near your books before going to bed.

In the morning, the silverfish will have eaten their way inside the newspaper.

All you need to do is throw the newspaper away.

Be sure not to unroll it or you will let them out.

Instead, you should see the bore holes they have made to get inside.

Repeat every night until you no longer see any signs of the silverfish.

You can use traps purchased from the store as they will work as well.

Standard traps such as “motels” which use sticky tape will trap the silverfish inside.

Small pieces of bread or starchy materials works quite well as bait for the silverfish.

3- Killing Silverfish

When trapping them is not enough, you can use common substances to kill them.

What follows are some of the most effective products that can help.

a) Boric Acid:

This is a common, natural, and cheap substance that will kill silverfish and any eggs that they lay.

Just pour some of the acid under bathtubs, sinks, along baseboards, in closets, and anywhere you see signs of silverfish.

The downside is that boric acid is toxic, so if you have children or pets do not use this product in the home.

b) Diatomaceous Earth:

This is a powder that you can sprinkle in closets, cabinets, and entrance-ways into your home.

This product is safe for humans and pets, but for small insects is deadly because it has sharp edges.

The edges will cut through their exoskeleton and cause them to die relatively quickly.

Just sprinkle some out before you go to bed and then vacuum up the powder and any victims it claimed in the morning.

c) Liquid Pyrethin:

This is a chemical that kills silverfish on contact.

You can use this in closets, baseboards, and especially any cracks in the walls or flooring where silverfish tend to hide.

While the chemical is quite effective, it is also toxic.

So, it is not recommended for homes with pets or children as they might get poisoned.

Keep it away from any food you have in the home as well.

You can also use repellents such as citrus or lavender spray, spice sachets, or cedar shavings of which silverfish do not like at all.

Place or spray repellents in your closet, near books, and the damper areas of your home to prevent silverfish from gathering.

Prevention Tips that will Keep Silverfish from Returning

Of course, the best way to reduce the silverfish population is keeping them from making your home their home.

There are simple methods you can employ to prevent silverfish from entering your home.

Remove All Food Sources from the Floor:

Anything that a silverfish might consume should be kept off the floor.

This means books on shelves, cardboard boxes replaced with plastic containers, and any other food sources swept off the floor.


All cracks and crevices should be filled with caulk to either prevent the silverfish from entering or having a place to lay their eggs.

Baseboards are good places, but anywhere where a silverfish might enter or stay should be treated.


By lowering the humidity levels, you make it less likely for the silverfish to call your place home.

A dehumidifier will help, but if you do not want to run the air conditioner all the time, run fans instead in the places where humidity tends to form such as in the kitchen, bathrooms, and any closets or closed places.

There are other ways to either prevent or reduce the presence of silverfish in your home.

From frequent vacuuming to storing all potential food items off the floor and in plastic containers, you can make your home unwelcome to silverfish.

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