Spring in Kansas and Missouri means warmer days, longer evenings, and a surge of pest activity inside and outside your home. Ants start marching through kitchens. Spiders show up in basements and closets. Roaches find their way into bathrooms. And all of it seems to happen at once.
This year, experts are warning that it could be worse than usual. The National Pest Management Association’s (NPMA) 2026 Bug Barometer covers both states in its regional forecasts. For Kansas and the North Central region, warmer spring conditions could trigger an early tick season, while late-season rainfall is expected to spike fly and cockroach activity. Midsummer will bring additional pressure from yellowjackets and wasps as above-average temperatures arrive. Missouri falls under the Great Lakes, Ohio Valley, and Midwest region, where rising spring temperatures are expected to trigger pest pressures sooner than usual, with summer conditions spiking fly and tick activity and driving ant and cockroach invasions indoors following heavy rainfall.
Most of these problems are preventable. The key is getting ahead of them before populations build and small issues become full infestations.
This room-by-room checklist covers the most common spring pest entry points and attractants in Kansas and Missouri homes. Work through it once in early May, and you’ll eliminate the conditions that draw pests indoors in the first place.
Kitchen: Where Ants and Roaches Show Up First
The kitchen is the most common starting point for spring pest problems. Ants and roaches are drawn to food and moisture, and kitchens offer both in abundance. With the NPMA forecasting increased cockroach and ant activity across both Kansas and Missouri this year, following heavy rainfall, kitchen prevention is more important than ever.
Store all pantry items in sealed glass or plastic containers. Open bags of flour, sugar, cereal, and pet food are easy targets for ants and pantry pests. The U.S. Environmental Protection Agency (EPA) recommends reducing accessible food sources as one of the most effective first steps in preventing household pests.
Wipe down countertops, stovetops, and tables after every meal. Even small crumbs and sticky residue are enough to attract foraging ants. Clean under appliances where crumbs accumulate out of sight. The space behind your refrigerator, under the stove, and around the dishwasher are prime hiding spots for roaches.
Take garbage out regularly and use trash cans with tight-fitting lids. Garbage that sits overnight is an open invitation. Fix any leaky faucets or pipes under the sink. Moisture is one of the top attractants for roaches, ants, and silverfish. A dripping pipe under your kitchen sink creates exactly the environment they’re looking for.
Check where plumbing and utility lines enter through the wall behind your sink or dishwasher. Seal any gaps with caulk or steel wool. These small openings are highways for pests moving between walls and living spaces.
Bathroom: Moisture Pests Love It Here
Bathrooms create the warm, humid environment that silverfish, drain flies, and roaches thrive in. With cockroach pressure expected to rise across Kansas and Missouri through late spring and into summer, moisture control in bathrooms should be a priority.
Run the exhaust fan during and after every shower. If your bathroom doesn’t have one, crack a window. Persistent humidity in a poorly ventilated bathroom attracts moisture-dependent pests and creates conditions for mold, which some pests feed on.
Check under the sink and around the base of the toilet for any signs of leaking or condensation. Even minor moisture buildup in these areas can sustain pest populations you never see.
Inspect the caulk around your tub, shower, and sink. Cracked or missing caulk creates gaps where pests can enter from wall voids. Resealing these areas takes minutes and eliminates common entry points.
Clean drains regularly. Drain flies lay their eggs in the organic buildup inside drains. If you’re noticing small, fuzzy-winged flies around your bathroom sink or shower, a thorough drain cleaning usually resolves it.
Store toiletries and cleaning products in sealed containers or cabinets rather than leaving them on open shelves. Clutter gives pests places to hide and makes it harder to spot early signs of activity.
Basement: Spider and Centipede Territory
Basements are the most common location for spider activity in Kansas and Missouri homes, including the brown recluse. Both states sit right in the heart of brown recluse territory. Basements are also where you’ll find centipedes, crickets, and other moisture-loving pests.
Reduce clutter. This is the single most impactful thing you can do in your basement. Cardboard boxes are a favorite shelter for brown recluse spiders. Replace them with sealed plastic bins wherever possible.
Address moisture. Use a dehumidifier if your basement feels damp or humid. Fix any cracks in the foundation that allow water seepage. Moisture attracts the insects that spiders and centipedes feed on, so controlling it reduces the entire food chain.
Inspect the areas where the foundation meets the walls and floor. Seal any visible cracks or gaps with caulk. Check around basement windows, window wells, and where utility pipes or wires enter the home.
Place sticky traps along walls in corners, behind storage areas, and near any known entry points. These won’t solve an infestation, but they’ll tell you what’s active in your basement and how serious the situation is.
Keep the area around your water heater, furnace, and sump pump clean and clear. These warm, undisturbed spots are prime real estate for pests looking for shelter.
If you have an unfinished basement with exposed insulation, inspect it for signs of pest damage or nesting. Rodents, in particular, will tear into fiberglass insulation for nesting material.
Garage and Storage Areas: The Overlooked Entry Point
Many homeowners across Kansas and Missouri focus on sealing their home’s exterior but forget the garage. If your garage is attached to your home, it’s one of the easiest paths for pests to get inside.
Inspect the weatherstripping around your garage door. If you can see daylight along the bottom or sides when the door is closed, pests can get through. Replace worn or damaged seals.
Store items off the floor and in sealed containers. Boxes and bags sitting directly on the garage floor are accessible to ants, spiders, roaches, and rodents.
Keep the garage clean and free of standing water. Puddles from car wash runoff or rain leaking under the door create the moisture pests need. Sweep regularly and address any drainage issues.
Check the door between your garage and your home. Make sure it seals tightly and has a proper door sweep. This is the last line of defense before pests move from the garage into your living space.
Exterior: Your First Line of Defense
Everything inside your home starts outside. A solid exterior inspection in early spring prevents most of the problems homeowners deal with through the summer. With the NPMA warning that 2026 will bring earlier pest emergence and greater numbers across both Kansas and Missouri, exterior prevention this year is especially critical.
Walk the perimeter of your home and inspect the foundation for cracks, gaps, or openings. Seal anything larger than a hairline crack with exterior-grade caulk. Mice can squeeze through a gap the size of a dime, and insects need even less.
Check all window screens for tears or holes and repair or replace as needed. Inspect door sweeps on every exterior door and replace any that are worn or missing.
Trim shrubs, bushes, and tree branches so they don’t touch the exterior walls or roofline. Vegetation in direct contact with your home creates a bridge for ants, spiders, and other pests to walk right inside.
Move firewood stacks at least 20 feet from the house and elevate them off the ground. Firewood piles are a common harbor for carpenter ants, spiders, and termites.
Clean gutters and downspouts. Clogged gutters hold standing water that breeds mosquitoes and creates moisture problems along your roofline and foundation.
Remove leaf litter, mulch buildup, and debris from around the foundation. Keep a clean border between landscaping and your home’s exterior walls.
Inspect any exterior vents, utility penetrations, and dryer vents. Make sure all are properly screened or sealed.
With tick season also expected to start early across both states this year, check your yard for tall grass and overgrown vegetation near walkways, play areas, and pet zones. Keeping these areas trimmed reduces tick habitat close to your home.
When the Checklist Isn’t Enough, Green Pest Solutions Is Here to Help
Prevention goes a long way, but some pest problems need professional attention. If you’re seeing pests regularly despite taking these steps, or if you suspect you’re dealing with brown recluse spiders, carpenter ants, roaches, or rodents, it’s time to call in a professional.
Green Pest Solutions offers personalized pest management plans built around your home and your specific concerns. Every plan starts with a thorough inspection and a customized approach designed to address the pests active on your property. Our Pest-Free, Worry-Free Guarantee means we’ll come back, even outside of normally scheduled visits, at no cost to you until the problem is resolved.
Don’t wait until pests are already established. Call Green Pest Solutions today at 785-596-0446 (Topeka), 913-407-1600 (Lenexa), or request your free estimate online.
