Hard freeze Friday brings insects into Davidson County homes

The first hard freeze of the season will hit Davidson County Friday night, bringing temperatures below freezing to parts of Middle Tennessee. As the cold air arrives, homeowners may notice insects attempting to enter their homes to escape the chill. Pest experts say this behavior is typical for several common species that look for warm shelter during the winter months.

The University of Tennessee Extension identifies multicolored Asian lady beetles as a primary offender. These insects begin searching for protected areas in the fall. They often gather on the sunny sides of buildings in large numbers before finding a way inside. Stink bugs and boxelder bugs also seek refuge in houses as outdoor temperatures decline.

Once inside, these insects are primarily looking for warmth rather than food. They tend to hide in wall voids, attics, and gaps around doors and windows. According to University of Tennessee Extension, Asian lady beetles can squeeze through openings as small as one-eighth of an inch. Many remain hidden in these protected areas until the weather turns warmer again.

Pest experts advise homeowners to focus on physical exclusion rather than chemical treatments. They note that sealing entry points and maintaining good sanitation are more effective strategies than routine exterior barrier spraying. Checking for small openings around the home is the most reliable way to keep insects outside through the winter.

To prepare, residents should inspect windows, doors, siding, and the foundation for cracks or gaps. An appropriate sealant can close these openings. Worn weatherstripping should be replaced, and door sweeps should be installed to close gaps beneath exterior doors. These simple steps prevent insects from finding their way in.

Homeowners should also inspect utility openings around pipes, outdoor faucets, and dryer vents. Clearing debris near the house helps reduce hiding spots for pests. Trimming vegetation and removing piles of leaves or other yard debris eliminates nearby shelters that attract insects.

Window screens require attention as well. Look for holes or loose-fitting screens that could allow bugs to enter. The guide “Pest in the Home” emphasizes that sealing entry points and maintaining screens are superior to relying on barrier sprays alone. Taking these steps now will help manage the influx of insects before the cold sets in fully.