As the temperatures drop in Utah, you’re not the only one looking for warmth—so are pests. When the cold weather sets in, many insects and rodents seek shelter inside homes, garages, and basements. If you’ve ever wondered why you suddenly spot more critters indoors during winter, it’s because they’re trying to escape the cold and find food sources.
Knowing what to watch for is the key to keeping your home pest-free this season. Here are Utah’s top five winter pests and how to prevent them from making themselves at home.
1. Mice & Rats
Rodents are the ultimate winter invaders. As food becomes scarce outside, mice and rats squeeze through the tiniest cracks to find warmth and shelter in homes. Once inside, they chew on wires, contaminate food, and multiply quickly.
How to Keep Rodents Out:
- Seal any cracks or gaps in walls, doors, and windows.
- Keep food sealed in airtight containers.
- Set traps in areas where you notice rodent droppings or gnaw marks.
- Store firewood at least 20 feet from your house to reduce hiding spots.
2. Spiders
Many spiders become less active in winter, but some species, like the black widow and hobo spider, still seek out warm places to hide. Basements, garages, and crawl spaces are their favorite winter retreats.
How to Keep Spiders Away:
- Reduce clutter in storage areas where spiders like to hide.
- Seal gaps around windows and foundation cracks.
- Use a dehumidifier to reduce moisture in basements and crawl spaces.
- Keep outdoor lights off or switch to yellow bulbs, as light attracts insects (which attract spiders).
3. Cockroaches
Cockroaches are resilient pests that can survive harsh winters by hiding in warm, damp areas of your home. Kitchens, bathrooms, and basements provide them with the needed moisture and shelter.
How to Prevent a Cockroach Infestation:
- Fix any leaks under sinks and appliances to eliminate excess moisture.
- Keep floors and countertops clean, as even small crumbs attract roaches.
- Take out the trash regularly and store it in sealed bins.
- Use caulk to seal gaps around pipes and entry points.
4. Boxelder Bugs
Boxelder bugs may not be destructive, but they can become a nuisance when they invade homes in large numbers. These black and red bugs gather on sunny exterior walls before squeezing inside through small cracks.
How to Stop Boxelder Bugs from Taking Over:
- Seal cracks around windows, doors, and vents.
- Use a vacuum to remove them rather than squishing them (they can leave stains).
- Trim boxelder trees near your home, as they attract these pests.
- Consider professional pest & insect control in Utah if boxelder bugs become overwhelming.
5. Silverfish
Silverfish are small, fast-moving insects that thrive in humid, dark spaces like basements, attics, and bathrooms. They feed on paper, fabrics, and even wallpaper glue, making them a problem for homeowners.
How to Keep Silverfish Out:
- Store books, paper, and clothing in airtight containers.
- Use dehumidifiers to keep moisture levels low.
- Fix leaks and improve ventilation in bathrooms and basements.
- Apply diatomaceous earth in areas where silverfish are spotted.
Keep Winter Pests Out for Good
Winter may drive pests indoors, but you can keep them out of your home with a little preparation. By sealing up entry points, maintaining a clean home, and addressing moisture issues, you can make your space less inviting to unwelcome guests. If you’re dealing with a full-blown infestation, professional pest control can help tackle the problem before it gets worse. Stay ahead of winter pests to enjoy a cozy, critter-free season!
