As Coloradoans bid farewell to the warmth of summer and welcome the crisp air of fall and winter, there’s another change on the horizon – the movement of insects. The cooler weather often drives many critters to find shelter; unfortunately, our homes can be very inviting. Here’s what you need to know about the most common insects seeking refuge and how to keep them at bay.

Common Cooler Weather Invaders

  • Boxelder Bugs: Recognizable by their black and orange-red markings, these bugs are harmless but can invade homes in large numbers.
  • Asian Lady Beetles: Unlike their native counterparts, these lady beetles are known to seek shelter indoors during winter.
  • Stink Bugs: Named for the unpleasant odor they release when threatened or crushed, stink bugs often enter homes in the fall.
  • Cluster Flies: These flies hibernate over winter, often choosing warm houses over the cold outdoors.

Why Insects Seek Our Homes as Shelter

As cold-blooded creatures, insects rely on their environment to regulate body temperature. When outdoor conditions become unfavorable, instinct drives them to find warmer habitats to survive. Homes make for ideal havens with their consistent heating and lack of predators.  

Preventing Insect Invasions

  • Seal Entry Points: Examine your home for cracks and gaps, especially around windows, doors, and utility entries. Caulking or using weather-stripping can help seal these entry points.
  • Maintain Landscaping: Keeping vegetation away from the immediate perimeter of your home can reduce the number of insects drawn to your residence.
  • Reduce Indoor Attractions: Ensure food is stored securely and address any moisture problems, as both can attract pests.
  • Install Screens: Window and door screens, especially those with fine mesh, can be instrumental in keeping flying insects out.
  • Routine Pest Control: Regular inspections and treatments from a pest control expert is usually always the best defense in warding off potential invasions.

If insects find their way into your home, there are several steps you can take to address the issue. For starters, vacuuming regularly helps, especially in areas where bugs are noticeable. Afterward, dispose of the bag or empty the container outdoors to prevent the pests from returning. Natural repellents such as a diluted mixture of soap and water can ward off certain pests like boxelder bugs, who oppose potent odors. However, if the infestation becomes challenging or persistent, it’s best to seek the expertise of a pest control professional.

Unwelcome insect guests can, unfortunately, mar the breathtaking beauty of Colorado’s cooler months. However, with proactive measures and knowledge, homeowners can effectively reduce the risk of invasion. The old adage goes, “An ounce of prevention is worth a pound of cure.” Stay vigilant and enjoy the peace and comfort of a pest-free home this winter.

Fly Season/Harboring Insect Season Is Here – Schedule Your Barrier Treatment to Keep Pests Out!


Front Range Pest is a local, family-owned, and operated pest and wildlife control company serving central Colorado and southern Wyoming. Our techs are licensed, insured, and certified with the proper credentials to provide effective pest management for your home or business. As your trustworthy, all-inclusive insect and wildlife specialists, we provide peace of mind by tracking wildlife entry points, removing nuisance pests, properly sealing access areas, cleaning up, and making necessary repairs. Contact us today to schedule an inspection.

Written by the digital marketing team at Creative Programs & Systems:

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