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Why Do I Have Silverfish in My House?

And, how do I get rid of them?

 

Silverfish are unusual looking insects that pre-date dinosaurs – so what’s up with these critters?

 

What Silverfish Look Like?

Silverfish are those slithery, silver, slimy critters you occasionally see scampering around your kitchen, bathroom or basement. They are about ½” long, have antennae about the same length as their bodies and three “tails”.

While they are slithery and slimy and no one wants them in their house, it is rare that silverfish are a major problem in our part of the country.

At Green Giant, we consider silverfish a nuisance pest and most often get 100% control with only one visit. Silverfish infestations can get quite large and difficult to control in warmer, more humid climates.

How do Silverfish Get In the House?

Since Silverfish are tiny and quick, they can easily slither through very small cracks, gaps or other openings in a building.  Doors often have small gaps that they can crawl through. Good door-sweeps can help keep them (and other insects) out of your house.

On occasion, Silverfish may hitchhike on firewood or on other materials brought into the building. When they are in a house, there is most often an infestation outside of the house. Silverfish can climb to get into a building and, on occasion, silverfish will find their way onto a bed or other furniture.

When you are trying to determine where the Silverfish come from, keep in mind that they need moisture and high humidity to survive. This is why it is common for silverfish to live in bathrooms and laundry rooms – they love those warm, damp environments!

Things like overgrown weeds and matted-down leaves around a house also provide the wet conditions and an unending food supply for Silverfish.

Eliminating damp conditions outside, will make your home less silverfish-friendly. Sealing off gaps with caulking can also prevent silverfish from getting inside.

 

The more important question is:

Why are Silverfish in my house?

Finding Silverfish can be a blessing in disguise. Silverfish can alert you to a bigger problem. Given that Silverfish live where conditions are wet and humid, their presence could be a sign that there is a water issue in your house – it could be a leaky pipe, or water coming from outside of your home. You might also discover damp or rotting wood in areas where you find Silverfish.

When do Silverfish Come out?

Silverfish are most active at night.  Being nocturnal, they can easily go unnoticed and populations can multiply pretty fast. During the day they hide in nooks and crannies in dark areas. If you turn on a light, in a damp basement, for example, you may see some Silverfish scamper away.

Will Silverfish Ever Go Away?

For Silverfish to just go away, the moisture and/or food sources need to be eliminated. Silverfish cannot live without moisture and high humidity so, the first thing to do is dry things out. If you can stop the source of the water, great. If you can’t, a dehumidifier may be needed to do the job. The drier the better.  Since Silverfish eat so many different things that are common in houses, it is harder to remove the food sources.

Are there any Natural Pest Control Options for Silverfish?

Yes. There are both natural and synthetic products that can control Silverfish. When we treat Silverfish organically, we use a cedar-oil based product.

 

Take the hassle out of DIY with a Quarterly Pest Control program, providing Year Round protection again the most common pests.

 

 

Lawn Care

Green Giant Home & Commercial’s Lawn Care services control weeds, build the thickness and density of your lawn and protect it from being damaged by insects and disease, providing you with a great-looking, healthy lawn. We offer fertilization, weed control, liming, insect control, and aeration and overseeding. Visit our Lawn Care page for more information.

Tree Care

Green Giant performs: Proper Diagnosis and Treatment of Tree & Shrub Problems, Insect & Disease Control (including Spotted Lanternfly), and Nutrient Management via Deep Root Fertilization to keep your plants healthy and thriving. Visit our Tree Care page for more information.

Weed Free Garden Beds & Vegetation Management

Green Giant’s Non-Lawn Weed Control services eliminate unwanted vegetation in a wide variety of locations for both residential and large commercial/municipal properties such as: Weed Control in Planting Beds (yes, no more pulling weeds!), around obstacles to reduce weed eating, along fence lines, stone/gravel driveways & parking lots, swales and roadside/curbside vegetation management. Find more information, visit our Vegetation Management page.

Pest Control

Our full service pest control division provides both Year-Round Service Programs that cover the vast majority of pests that you will encounter and also One-Time Corrective Services for pests such as bees, ants, termites or mice. For more information, visit our Pest Control page.