Termites in Wisconsin: Types, Risks, and How to Prevent Them

Written by Kirstin Harrington
Published: December 9, 2023
Share on:


Termites can wreak havoc on your home and land all throughout the state of Wisconsin. Subterranean termites are the ones that will be causing damage to your home. You can find Eastern Subterranean termites on a warm day after it rains. 

While they’re most active during the day after a good rainstorm in the spring, you may find them and heated buildings throughout the chilly Wisconsin winters. Here’s everything else you need to know about termites in America’s Dairyland.

1. Insecticides

Subterranean termites

A colony of subterranean termites can build nests beneath tree trunks.

©Cheng_Wei/iStock via Getty Images

Because termites can hide in cracks and crevices, it can be hard to reach them. Thankfully foaming insecticides work well. You spray the area where you believe termites are hiding with this foam and it will fill all the pores and splits in wood. 

This leaves behind a chemical residue that will instantly kill a termite as soon as they come in contact with it. There are also dust insecticides that work great to get the job done. These can get into areas that the foam or liquid insecticides can’t reach. 

These can also work on other household pests such as ants or roaches. With all that being said, be sure to look at the package closely to know whether or not it’s a safe product for households with kids or pets. 

2. Nematodes

Parasitic entomopathogenic nematodes Steinernema sp.

Nematodes can infest wild animals and should not be used in households with pets.

©D. Kucharski K. Kucharska/Shutterstock.com

A nematode is a parasitic roundworm that is microscopic. While they are extremely small, nematodes are unbelievably talented termite hunters. A beneficial nematode will find a termite and burrow inside their body. 

After a few days, they will poison the termite from within. If you have additional garden pests and the termite problem you’re experiencing is outdoors, beneficial nematodes can help your garden flourish. 

Sprinkling them in potting soil will tackle almost any infestation. This is a great way to get rid of termites in Wisconsin when they’re destroying your garden or farmland. 

3. Termite Baits

Men are replacing termite bait.Anti Termite Baiting System:

You can install an anti-termite baiting system to prevent an issue before it starts.

©Business/iStock via Getty Images

Just like other animals and insects that wreak havoc in and around your home, there are baits to get rid of termites as well. They work similarly to a typical bait trap in the way that they will lure the termite. 

Within the trap, there is a poison that the creature will consume and bring back to its colony. When it gets back to its nest the other termites will consume the poison and typically die during the molting process. 

4. Termite Barriers 

Formosan termite colonies

Termites will consume the soil of crops and decaying matter around a garden.

©vinit thongtue/Shutterstock.com

You can also opt for a termite barrier. This typically comes in a liquid form that you can spray on the soil or mulch in your garden or around the exterior of your home. As soon as the termite ingests the liquid, they will die. 

Similar to termite baits, the liquid pesticide can spread from one of these pests to the entire colony upon contact. 

5. Hire an Exterminator

Cockroach Exterminators - Close up of Exterminator

Call multiple exterminators to compare prices for eliminating termites in Wisconsin.

©LightField Studios/Shutterstock.com

If you have a serious infestation that you don’t feel capable of handling yourself, hire an exterminator. While some exterminators use some of the aforementioned ways to get rid of termites, the situation may call for some serious fumigation. 

One reason subterranean termites thrive in Wisconsin homes is due to the damp conditions. To reduce the chances of having termites, use a dehumidifier, clean your gutters, and repair any leaking pipes.

6. Diatomaceous Earth

food grade diatomaceous earth supplement - scoop of powder

DE is a popular pest killer that is primarily used for roaches.


Diatomaceous earth is used to kill a variety of household pests. It comes in a powdered form and can be sprinkled anywhere you think the termites might be living. As soon as they crawl over diatomaceous earth, the powder will penetrate their exoskeleton. 

It will start to dehydrate them immediately until they die

7. Boric Acid

Boric Acid And Cockroaches - Natural Pest Control Methods

Boric acid can kill a wide variety of household pests that can cause harm to structures.


Another standard way to get rid of termites in Wisconsin is to use boric acid. If you look at the ingredients list on store-bought insecticides, you will likely see this in the ingredient list. Similarly to diatomaceous earth, boric acid dehydrates termites and shuts down their nervous system. 

It’s important that you wear protective gear while working with this product. Once you have a mask on, spray boric acid around your floors, walls, and any cracks and crevices in your home. 

8. Cardboard Trap

Brown Cardboard paper piece isolated on white background

This is an easy method to test out for free if you believe you have termites in your home.

©Kwangmoozaa/iStock via Getty Images

Lastly, an affordable way to get rid of subterranean termites in Wisconsin is to use a homemade cardboard trap. Take a couple of small pieces of cardboard and soak them with water. You’ll then want to stack them on top of each other to make the bait. 

The termites are attracted to the cellulose and will quickly get stuck between the two pieces of cardboard. It is then advised to bring the cardboard outdoors and burn it. While this isn’t the most effective method on this list, it is one worth trying before investing in expensive products. 

The photo featured at the top of this post is © Oasishifi/Shutterstock.com

Share on:
About the Author

Kirstin is a writer at A-Z Animals primarily covering animals, news topics, fun places, and helpful tips. Kirstin has been writing on a variety of topics for over five years. She has her real estate license, along with an associates degree in another field. A resident of Minnesota, Kirstin treats her two cats (Spook and Finlay) like the children they are. She never misses an opportunity to explore a thrift store with a coffee in hand, especially if it’s a cold autumn day!

Thank you for reading! Have some feedback for us? Contact the AZ Animals editorial team.