Sumner County Threats

Common Pests in Sumner County TN

Know the pests that live in your area. Learn what they look like, where they hide, and how to keep them out.

Brown Recluse Spider

The Fiddleback

One of the most dangerous spiders in Sumner County. About the size of a quarter with a violin shape on its back. Extremely common in older homes throughout Gallatin, Hendersonville, and Portland — especially those with crawl spaces.

Dark, undisturbed areas in Sumner County homes — closets, attics, basements, crawl spaces, cardboard boxes, under rocks and logs. Older homes in Gallatin and Portland are particularly prone due to construction styles with more hiding spots.

Their bite can cause a serious wound that destroys skin tissue. Seek medical attention immediately if bitten. Brown recluse bites are one of the most common spider-related ER visits in the Sumner County area.

Prevention Tips

  • Shake out shoes and clothes before wearing
  • Use plastic bins instead of cardboard for storage
  • Seal cracks around windows, doors, and foundation
  • Place sticky traps in dark areas to monitor

Black Widow Spider

Red Hourglass Spider


The most venomous spider in North America, and they’re well-established across Sumner County. Shiny black with a red hourglass marking on the belly. Rural areas around Westmoreland, Portland, and White House near barns and sheds see the highest numbers.

Wood piles, under rocks, garages, sheds, meter boxes, and under outdoor furniture throughout Sumner County. Builds messy webs near the ground. Common in outbuildings and barns in rural Sumner County.

Venom attacks the nervous system — causes severe muscle pain, cramping, and trouble breathing. Medical attention required. Generally only bites when threatened, but encounters are common in Sumner County garages and sheds.

Prevention Tips
 
  • Wear gloves when handling firewood or working in garages
  • Check meter boxes and outdoor furniture before reaching in
  • Clear wood piles and debris away from the house
  • Keep garage doors closed

American Cockroach

Palmetto Bug

The biggest cockroach in Sumner County — up to 2 inches long. Reddish-brown, sometimes called a ‘water bug.’ Thrives in Sumner County’s humid summers. Older sewer systems in Gallatin and Hendersonville are prime breeding grounds.

Warm, wet places — sewers, basements, crawl spaces, around plumbing. Enters Sumner County homes through drains, pipes, and gaps under doors. The aging sewer infrastructure in parts of Gallatin and Hendersonville gives them easy access indoors.

Carries Salmonella and E. coli. Droppings and molting trigger asthma in kids. Contaminates food and kitchen surfaces. The #1 indoor pest in Tennessee — and Sumner County’s humidity makes it even worse.

Prevention Tips

  • Seal cracks around pipes and drains
  • Fix leaky faucets and pipes
  • Keep food in sealed containers
  • Don’t leave pet food out overnight

German Cockroach

Kitchen Roach

Small, light brown roaches with two dark stripes. Multiply incredibly fast — one female produces 300+ babies. Found in homes and restaurants across Sumner County. Apartments in Gallatin and Hendersonville can have tough infestations from shared walls.

Kitchens and bathrooms in Sumner County homes — near dishwashers, stoves, fridges, and sinks. Hitchhikes in via grocery bags, boxes, and used furniture. Multi-unit housing in Gallatin and Hendersonville spreads them through shared plumbing.

Molting and droppings are a major cause of childhood asthma. Spreads bacteria across food and surfaces. Small problems become major infestations quickly. Lives exclusively indoors, so they’re a year-round problem in Sumner County — no winter break.

Prevention Tips

  • Check bags and boxes before bringing inside
  • Wipe down kitchen surfaces every night
  • Fix leaky faucets to remove water sources
  • Never leave dirty dishes in the sink overnight

Lone Star Tick

Turkey Tick

The most common tick in Tennessee and extremely common around Bledsoe Creek State Park and Old Hickory Lake recreation areas. Female has a single white dot on her back. Aggressively hunts hosts — and their bite can make you allergic to red meat for life.

Wooded areas, thick brush, tall grass, along trails, and forest edges throughout Sumner County. Bledsoe Creek State Park, Old Hickory Lake trails, and the wooded properties around Castalian Springs and Bethpage are hot spots.

Can cause Alpha-gal Syndrome (red meat allergy) — and cases are increasing among Sumner County residents. Also spreads Ehrlichiosis and Heartland Virus. Anyone who spends time outdoors in Sumner County is at risk.

Prevention Tips

  • Wear long pants and light colors in the woods
  • Use DEET or Picaridin bug spray
  • Do a full body tick check after being outdoors
  • Shower within 2 hours of coming inside

Deer Tick

Blacklegged Tick

The main carrier of Lyme disease, and populations are growing in Sumner County as deer numbers increase. Smaller than a lone star tick — about the size of a sesame seed. Wooded properties around Castalian Springs, Bethpage, and Bledsoe Creek have the highest risk.

Forests with fallen leaves, wooded area edges, along deer trails across Sumner County. Young ones hide in damp leaf litter. The dense wooded corridors along creeks and around Old Hickory Lake are prime habitat.

Carries Lyme disease — starts with bull’s-eye rash, fever, fatigue. Untreated, can cause chronic joint, heart, and brain problems. With Sumner County’s growing deer population, tick encounters are becoming more frequent.

Prevention Tips

  • Check for ticks daily — scalp, ears, armpits, waist
  • Use fine-tipped tweezers to remove ticks straight out
  • Clear brush and leaf piles from your yard
  • Save any tick you find and show your doctor

Mosquitos

Skeeters


A serious health threat in Sumner County, not just a nuisance. Old Hickory Lake, the county’s many creeks, and surrounding farmland create ideal breeding habitat. West Nile Virus has been found in Sumner County mosquitoes.

Breed in any standing water — bird baths, clogged gutters, flower pot saucers, old tires, even bottle caps. Sumner County’s lake shoreline, creek corridors, and low-lying farm areas near Cottontown and Bethpage are major breeding zones.

Carry West Nile Virus, Eastern Equine Encephalitis, and Zika. Tennessee reports West Nile cases every year, and Sumner County’s waterways make it a higher-risk area. Most active at dawn and dusk.

Prevention Tips

  • Dump out standing water weekly
  • Clean gutters so water drains properly
  • Fix or replace torn window screens
  • Use DEET bug spray at dawn and dusk

Yellow Jackets

Ground Hornets

Extremely aggressive stinging insects that build large colonies in the ground or inside wall voids. Ground nests are extremely common in Sumner County yards, especially in late summer. Unlike bees, they can sting multiple times.

Underground nests in yards, flower beds, and along foundations across Sumner County. Also build nests inside wall voids, attics, and hollow trees. Lawn mowing accidents are a frequent cause of calls in the county.

Will chase and sting repeatedly when disturbed. A hidden ground nest can be hit by a lawnmower, triggering a mass attack. Cause most sting-related ER visits. Colonies peak in late summer with hundreds of workers — a serious hazard for Sumner County families.

Prevention Tips

  • Watch for ground traffic patterns of flying insects in your yard
  • Never pour gasoline or water into ground nests
  • Keep trash cans sealed — they love sugary food waste
  • Call a professional for removal — DIY is dangerous

Spotted Lanternfly

New Invasive Threat (2025)

Brand-new invasive pest confirmed in Sumner County in 2025. The TN Dept. of Agriculture is actively tracking it. Colorful planthopper from Asia — gray spotted wings with bright red underwings. Confirmed in 6 Tennessee counties and spreading fast. Report any sightings immediately.

On trees (especially maples and walnuts), grapevines, and fruit trees throughout Sumner County. Lays flat, mud-like egg masses on trees, rocks, and outdoor furniture. Check your trees, vehicles, and trailers before moving them.

Weakens and kills trees by sucking sap. Excretes sticky ‘honeydew’ that grows black mold. Threatens Sumner County’s trees, local vineyards, orchards, and forests. This is a brand-new threat to our area — every sighting matters.

Prevention Tips

  • Learn what they look like — check TN Dept. of Agriculture
  • If you see one, stomp it and report the sighting
  • Check cars and trailers for egg masses before traveling
  • Don’t move firewood from infested areas

Paper Wasps

Umbrella Wasps


Build open, umbrella-shaped nests under eaves, porches, and deck railings. Very common across Sumner County — nests appear as early as April on porches and carports throughout Gallatin and Hendersonville. Semi-aggressive when their nest is disturbed.

Under eaves, porch ceilings, deck railings, window frames, attic vents, and playground equipment in Sumner County homes. Anywhere with a sheltered overhang. The county’s warm springs give them an early start each year.

Painful stings that can cause serious allergic reactions. Nests grow throughout summer and can house dozens of wasps near your doorways. In Sumner County, early spring nest checks can prevent larger colonies by summer.

Prevention Tips

  • Check eaves and porches for small nests in early spring
  • Knock down empty nests in winter to discourage rebuilding
  • Seal gaps around attic vents and soffits
  • Keep outdoor food and drinks covered

Red Imported Fire Ants

Fire Ants

Aggressive, reddish-brown ants that build dirt mounds in yards. Established throughout Sumner County — warm weather lets colonies grow large, especially around Hendersonville and Gallatin. If disturbed, hundreds swarm out and sting repeatedly.

Open, sunny areas in Sumner County — lawns, parks, playgrounds, roadsides. Mounds appear after rain. Also nest in electrical boxes and AC units. School grounds and ballfields across the county frequently have active mounds.

Painful stings leave itchy pustules. Can cause severe allergic reactions. Attack in groups — dozens of stings at once. Kids and pets playing in Sumner County yards are at high risk, especially after spring rains when mounds multiply.

Prevention Tips

  • Check your yard for mounds after rain
  • Treat mounds quickly before they grow
  • Keep grass cut short to spot mounds early
  • Wear closed-toe shoes when working outside

House Mice

Field Mice


A year-round problem in Sumner County, but worst in fall and winter as mice seek shelter. Common in older homes in Gallatin, Portland, and Westmoreland. Can squeeze through a hole the size of a dime. One pair produces 60+ babies per year.

Inside walls, attics, basements, behind appliances, under cabinets in Sumner County homes. Build nests from insulation, fabric, and shredded paper. Rural properties and homes near farm fields in Portland and Westmoreland see the heaviest activity.

Carry Hantavirus and Salmonella. Droppings trigger asthma. Chew on electrical wires — a fire hazard in Sumner County’s older homes. Contaminate food storage areas. Problems escalate fast once they’re inside.

Prevention Tips

  • Seal every gap bigger than a dime with steel wool
  • Store food in glass or metal containers
  • Keep counters and floors free of crumbs
  • Install door sweeps on all outside doors

Norway Rats

Sewer Rats

Large brown rats up to 10 inches long. Found in city and suburban areas of Sumner County — commercial areas in Gallatin and Hendersonville, plus rural farms, see the most activity. Very cautious, which makes them harder to trap than mice.

Burrows along foundations, under concrete, in crawl spaces and sewers across Sumner County. Inside basements and ground floors near water sources. The county’s mix of older commercial buildings and rural properties provides plenty of habitat.

Carry Leptospirosis and Rat-Bite Fever. Chew through wires, PVC pipes, even concrete. Cause expensive damage and fire hazards in Sumner County homes and businesses. Need daily water, so they’re drawn to properties near creeks and lakes.

Prevention Tips

  • Seal openings over half an inch with metal
  • Don’t leave pet food or bird seed outside
  • Use heavy-duty trash cans with tight lids
  • Trim tree branches 4+ feet from roofline

Roof Rats

Black Rats


Agile climbers that prefer elevated nesting sites — attics, roof lines, and upper stories of buildings. Slimmer and more acrobatic than Norway rats with a tail longer than their body. Present in the Sumner County area and increasingly reported in residential neighborhoods.

Attics, roof voids, upper wall cavities, and dense tree canopies across Sumner County. Travel along power lines, fence tops, and tree branches to access roofs. Properties with fruit trees, bird feeders, or heavy ivy are especially attractive to them.

Carry diseases including Leptospirosis and Salmonella. Gnaw through wiring, insulation, and PVC pipes in attic spaces — creating fire and water damage risks. Their overhead nesting habit means damage often goes unnoticed until it’s severe.

Prevention Tips

  • Trim tree branches 4+ feet from roofline
  • Seal gaps around roof vents, eaves, and utility lines
  • Remove fallen fruit and secure bird feeders
  • Store firewood and debris away from structures

Bed Bugs

Mattress Bugs

Cases increasing in Sumner County homes, hotels, and apartments. Nashville proximity and Old Hickory Lake tourism contribute to spread. Small, flat, reddish-brown insects the size of an apple seed that feed on blood while you sleep.

Mattress seams, box springs, bed frames, headboards, behind baseboards, furniture cracks, behind picture frames, electrical outlets. They hitchhike into Sumner County homes via luggage, used furniture, and visitors.

Bites cause itchy welts. Cause serious stress and sleep loss. Extremely hard to eliminate without professional treatment. Sumner County’s growing tourism and proximity to Nashville mean bed bug cases continue to rise.

Prevention Tips

  • Check hotel mattress seams before unpacking
  • Keep suitcases on luggage racks, never beds
  • Wash clothes on high heat after traveling
  • Never bring used furniture in without inspecting

Odorous House Ants

Stink Ants


The most common ants in Tennessee. Small, dark brown ants that emit a rotten coconut smell when crushed. They move their colonies every few weeks, making them difficult to eliminate without professional help. Extremely persistent invaders of Sumner County homes.

Inside wall voids, under floors, near water heaters, and around leaky pipes in Sumner County homes. Outside under mulch, stones, and debris. They trail along foundations, countertops, and baseboards — especially in kitchens and bathrooms.

Contaminate food and surfaces. Their habit of relocating colonies every few weeks makes DIY treatments ineffective — you treat one spot and they simply move to another. Large colonies can have multiple queens, making them one of the hardest ants to fully eliminate.

Prevention Tips

  • Seal cracks along foundations and around windows
  • Fix moisture issues and leaky pipes
  • Keep kitchen surfaces clean and food sealed
  • Trim vegetation touching exterior walls

Argentine Ants

Sugar Ants

An invasive species that forms massive supercolonies with multiple queens. Light brown and smaller than most native ants. They aggressively displace native ant species and can overwhelm properties in Sumner County with sheer numbers.

Trailing along sidewalks, foundations, and tree trunks across Sumner County. Nest in moist soil under rocks, mulch, and debris. Enter homes through the smallest cracks, especially during dry or hot weather when they seek water indoors.

Their supercolony structure means killing a few ants does nothing — colonies can contain millions of workers. They displace beneficial native ants, protect plant-damaging aphids for their honeydew, and contaminate food. Infestations scale quickly in Sumner County’s mild climate.

Prevention Tips

  • Eliminate standing water and fix irrigation leaks
  • Keep branches and shrubs trimmed away from house
  • Store food in airtight containers
  • Remove leaf litter and debris near foundation

Fleas

Cat Fleas


Active late spring through early fall in Sumner County. Local wildlife — deer, raccoons, opossums — constantly brings new fleas into neighborhoods. A single female lays 50 eggs per day, and they can survive year-round in heated homes.

On pets, in carpet fibers, pet beds, furniture cushions, and cracks in hardwood floors. Outside in shady, moist areas of Sumner County yards. The county’s abundant wildlife keeps flea populations constantly replenished in residential areas.

Cause intense itching and rashes. Can give pets tapeworms. Heavy infestations cause anemia in small or young animals. Sumner County’s warm, humid summers let flea populations explode between June and September.

Prevention Tips

  • Keep pets on flea prevention year-round
  • Vacuum carpets and furniture often
  • Wash pet beds in hot water weekly
  • Treat shady yard areas where pets rest

Wolf Spider

Ground Hunter


One of the most common spiders in Sumner County. Big, hairy, and fast — but mostly harmless. Doesn’t build webs. Chases prey on the ground like a tiny wolf. Wooded areas near Old Hickory Lake are full of them. Comes indoors in fall seeking warmth.

On the ground in leaf piles, under rocks, along baseboards in Sumner County homes. In fall, they move into closets, garages, and basements. Properties with wooded lots and heavy leaf cover across the county see the most.

Bite is similar to a bee sting — not medically serious. More scary than harmful. In Sumner County, they’re mainly a fall nuisance as they move indoors when temperatures drop.

Prevention Tips

  • Seal gaps around doors, windows, and foundation
  • Clean up leaf piles near your house
  • Use door sweeps on outside doors
  • Reduce porch lighting that attracts their prey

Brown Marmorated Stink Bug

Shield Bug

A major fall headache across Sumner County. Invasive bug from Asia, about the size of a nickel. Swarms onto sunny walls in fall looking for ways inside. South and west-facing homes in Gallatin, Hendersonville, and Portland get hit hardest.

In fall, gathers by the hundreds on south-facing walls of Sumner County homes. Hides in wall voids, attics, behind curtains all winter. On fruit trees and gardens in summer. The county’s warm fall days and cold nights trigger swarming behavior.

Major nuisance — nobody wants hundreds of stinky bugs inside. Poop stains walls and curtains. Damages garden and farm crops. Releases a terrible smell when crushed or scared.

Prevention Tips

  • Seal cracks around windows, doors, and siding before fall
  • Fix damaged screens and add door sweeps
  • Vacuum up indoor ones (empty bag outside)
  • Don’t crush them — the smell lingers

Silverfish

Bristletails


Small, silvery-gray insects shaped like a teardrop with three tail threads. Love Sumner County’s humid climate. Older homes in Gallatin and Hendersonville with basements are prime territory. Move in a wiggling, fish-like motion.

Dark, damp spots in Sumner County homes — bathrooms, basements, attics, under sinks, laundry rooms. Eat paper, book covers, wallpaper, fabric, and dry food. The county’s humidity gives them the moisture they need year-round.

Ruin books, documents, photos, wallpaper, and stored clothes. Can contaminate pantry food. Not a health threat, but a persistent nuisance in humid Sumner County homes without good moisture control.

Prevention Tips

  • Use a dehumidifier in basement and bathroom
  • Fix leaking pipes and improve airflow
  • Store papers and photos in sealed containers
  • Keep dry foods in airtight containers

Earwigs

Pincher Bugs

Dark brown bugs with pincers on their rear. They do not target human ears. Common in Sumner County gardens — homes with heavy mulch in Gallatin, White House, and Hendersonville see summer invasions. Mostly outdoor pests that come inside looking for moisture.

Under mulch, rocks, and leaf piles in Sumner County yards. Enter homes through ground-level cracks into bathrooms, laundry rooms, and kitchens. The county’s landscaped subdivisions with bark mulch beds are prime earwig territory.

Not dangerous — pincers rarely break skin. Minor garden damage to seedlings and flowers. Just creepy-looking. In Sumner County, they’re mainly a summer nuisance that follows mulch and moisture indoors.

Prevention Tips

  • Remove mulch and debris near foundation
  • Make sure water drains away from house
  • Seal ground-level cracks and gaps
  • Switch to yellow outdoor light bulbs

Camel Crickets

Spider Crickets


Very common in Sumner County basements. Look like a spider-cricket hybrid — humped back, long legs, no wings. Can’t chirp. Rocky terrain and creek corridors provide natural habitat. Jump high and far when startled, which scares people. Move indoors in fall.

Basements, crawl spaces, garages, under porches across Sumner County. Love cool, damp, dark places. The county’s rocky limestone terrain and creek corridors give them plenty of natural habitat right next to homes.

Harmless — no biting, stinging, or diseases. May chew stored fabric, paper, and cardboard. Mostly just startling. Fall invasions are regular in Sumner County as temperatures drop.

Prevention Tips

  • Reduce basement moisture with a dehumidifier
  • Seal foundation and basement window gaps
  • Use sticky traps to monitor populations
  • Use plastic bins instead of cardboard for storage

House Centipedes

Hundred-Leggers

Fast, many-legged creatures that eat other bugs like spiders and roaches. Actually helpful — but terrifying to see darting across the floor. Common in Sumner County homes with basements and crawl spaces, especially near creeks and Old Hickory Lake.

Damp, dark areas in Sumner County homes — basements, bathrooms, crawl spaces, closets. If you see lots of them, you probably have other bugs they’re feeding on. Properties near the county’s waterways tend to see them most.

Can bite if handled (rare, mild sting). Lots of centipedes usually means a bigger pest problem — they follow their food. In Sumner County, they’re an indicator that other pests may be present in your home.

Prevention Tips

  • Fix moisture problems — dehumidifiers, leak repairs
  • Seal cracks in foundation, doors, windows
  • Address other pest issues (they follow prey)
  • Keep storage areas clean and dry

Dealing with any of these pests?

Extermi-NATE serves all of Sumner County, Monday through Friday. Request a free quote or explore our services to learn how we treat every pest on this list.