Tennessee's climate means different pests show up at different times of year. Knowing what to expect — and when to take action — can save you from infestations, damage, and expensive emergency treatments.
Here's your season-by-season guide to the pests that affect Middle Tennessee homeowners.
Spring Pests (March – May)
Spring is when pest activity ramps up fast. Warmer temperatures wake up overwintering insects, and new colonies begin establishing themselves.
Ants are one of the first pests you'll notice in spring. Colonies that went dormant over winter send out scout workers as soon as temperatures rise above 50°F. Those scouts head straight for your kitchen. Spring ant removal is one of our most common service calls.
Termites are the most important spring pest to watch for. Termite swarm season peaks in April and May in Middle Tennessee. If you see winged termites inside your home, that's a swarm event from a colony that's been feeding on your home's wood structure — possibly for years. A termite exterminator should inspect your home immediately.
Mosquitoes begin breeding as soon as standing water warms up. A mosquito treatment program should start in March or April, before populations explode.
Carpenter bees become active in spring, drilling perfectly round holes into wood porches, decks, and fascia boards. Learn more about what you need to know about carpenter bees.
Action items for spring: Schedule a perimeter treatment, inspect your home for termite damage, and start mosquito prevention.
Summer Pests (June – August)
Summer is peak pest season in Tennessee. Heat and humidity create ideal conditions for nearly every pest species.
Mosquitoes are at their worst in summer. Nashville's humidity keeps populations high from June through September. Learn about scents that repel mosquitoes for natural prevention between treatments.
Wasps and yellow jackets build nests that reach their maximum size in late summer. Nests near entry points, porches, and play areas become dangerous. Wasp removal calls peak in July and August.
Fleas and ticks are at peak levels during summer months. If you have outdoor pets, flea prevention is critical. Read about everything you need to know about flea bites so you can identify them early.
Spiders become more visible as they mature and build larger webs. Spider removal services increase in summer as homeowners notice more spider activity indoors and out.
Nashville summers are peak pest season. Homes in Brentwood, Franklin, and Thompson's Station with large wooded lots are especially affected.
Action items for summer: Maintain monthly treatments, keep up with mosquito yard treatments, ensure pets are on flea and tick prevention.
Fall Pests (September – November)
Fall is when pests start looking for winter shelter. Your home becomes increasingly attractive as outdoor temperatures drop.
Mice and rats are the signature fall pest. As temperatures cool, rodents seek warmth, food, and nesting material inside homes. October is the number one month for mouse calls in Nashville. Seal entry points before they find them. Mice removal is critical to address before populations establish themselves indoors.
Stink bugs invade homes for winter shelter, often in large numbers. They're harmless but extremely annoying, and crushing them releases a foul odor. Learn about what stink bugs are and how to deal with them.
Brown recluse spiders become more active indoors in fall. As they move into heated interior spaces, the chance of encountering one increases.
Cockroaches move indoors as outdoor conditions become less favorable. A cockroach exterminator can set up preventive treatments before populations establish inside your home.
Action items for fall: Perform exclusion work (sealing gaps and cracks), schedule a fall perimeter treatment, and set up rodent monitoring.
Winter Pests (December – February)
Winter pest problems are almost always pests that moved inside during fall. The good news is that fewer new pests are trying to enter. The bad news is that the ones already inside are settled in.
Mice that moved in during fall are now nesting in walls, attics, and crawlspaces. You'll hear scratching at night and find droppings in cabinets and storage areas. Read about mice infestations in Nashville homes for more context.
Cockroaches continue to thrive indoors through winter. They don't go dormant in heated homes, so if you had roaches in fall, you still have roaches in January.
Bed bugs don't follow seasonal patterns, but holiday travel increases exposure risk. Hotels, family gatherings, and used furniture are common sources. Our bed bug service operates year-round.
Spiders are less visible in winter but still present in basements and crawlspaces, quietly waiting out the cold months.
Winter is actually the best time for exclusion work. Seal gaps now while pests are dormant, and you'll prevent next fall's invasion.
Action items for winter: Interior inspections, monitor traps, seal entry points, and plan your spring treatment schedule.
Year-Round Pest Prevention Tips
The most effective pest management is consistent, year-round prevention rather than reactive emergency treatments.
Quarterly professional treatments are the backbone of a good pest prevention plan. They address each season's specific threats before they become infestations.
Maintain a 12-inch gravel or mulch-free perimeter around your foundation. Mulch and landscaping right up against your house creates a bridge for insects to travel from soil to structure.
Stack firewood at least 20 feet from your house and store it off the ground. Woodpiles are prime habitat for spiders, ants, termites, and mice.
Fix moisture issues immediately. Dripping faucets, poor drainage, and condensation attract every pest on this list.
Want to know more about Nashville's pest landscape? Check out our articles on the top five bugs and pests in Nashville and whether bugs are a problem in Nashville.
When to Call a Professional (By Season)
Some situations need professional attention regardless of the time of year, but here are the seasonal red flags.
- Spring: Termite swarmers indoors, ant trails that keep returning despite cleaning
- Summer: Wasp nests near entry points or play areas, recurring mosquitoes despite removing standing water
- Fall: Scratching sounds in walls (mice), stink bugs entering in large numbers, brown recluse sightings
- Winter: Cockroach sightings in kitchens or bathrooms, signs of bed bugs after travel
Thrive's quarterly pest control plans are designed around Tennessee's seasonal pest calendar. We serve Nashville, Mt. Juliet, Hendersonville, Murfreesboro, and surrounding communities. Give us a call for a free inspection.
