5 Pests That Thrive in Florida's Summer Humidity (And What to Do About Them)
If you live in Florida, you know summer isn't just about beach days and afternoon thunderstorms — it's also prime time for unwanted houseguests. The combination of heat, humidity, and frequent rain creates a perfect breeding ground for pests of all kinds. And with August 2026 bringing yet another round of heavy afternoon downpours across the state, pest activity is running high.
The good news? You don't have to just live with it. A little prevention and awareness can go a long way toward keeping your home pest-free through the hottest months of the year. Here are the five pests causing the most headaches for Florida homeowners right now, along with practical steps you can take to keep them out.
1. Mosquitoes
Florida's summer climate — 90°F days followed by heavy afternoon storms — is a mosquito paradise. Standing water collects in gutters, plant saucers, birdbaths, and even bottle caps, giving them all they need to breed. Beyond the itchy bites, mosquitoes in Florida can carry West Nile virus and dengue fever, with several counties reporting locally acquired cases in recent years.
What to do: Walk your property after every rain and dump anything holding water. Treat birdbaths with mosquito dunks (safe for birds and pets). Keep your yard trimmed. Use repellents with DEET or picaridin when you're outside, especially at dawn and dusk.
2. Termites
Subterranean termites are active year-round in Florida, but by August many homeowners discover the damage left behind from spring swarms. They live in underground colonies and build mud tubes to travel from the soil into your home's wood. Termites cause billions in property damage each year, and Florida is one of the highest-risk states.
What to do: Schedule an annual termite inspection. Look for mud tubes along your foundation, hollow-sounding wood, and discarded wings near windows. Reduce moisture around your foundation by fixing leaks and keeping gutters draining away from the house. If you spot signs, call a professional immediately — termite damage isn't covered by most homeowners insurance.
3. Cockroaches
The two biggest troublemakers are the American cockroach (big, reddish-brown, and yes — it flies) and the German cockroach (smaller and more likely to infest kitchens). Both love warm, humid spaces and are especially active in summer. Beyond the creep factor, roaches can trigger asthma and carry bacteria like Salmonella and E. coli.
What to do: Seal cracks around doors, windows, and baseboards. Keep your kitchen spotless — no crumbs, dirty dishes overnight, or pet food sitting out. Use a dehumidifier in damp areas. Bait stations and boric acid work for light infestations, but German roaches usually require professional treatment.
4. Ants
Florida's ant population explodes in summer. The most common offenders include ghost ants, big-headed ants, white-footed ants, and — the one everyone dreads — fire ants. Rainy weather can flood their outdoor colonies, driving them inside to find dry ground and food. Fire ant stings are painful and can cause serious allergic reactions in some people.
What to do: Keep food sealed in airtight containers. Trim back vegetation touching your home's foundation. Caulk cracks around windows and doors. For fire ants, treat mounds on a dry day using granular baits or mound drenches — and always wear gloves and long pants when working near them.
5. Pasture Mealybug
This invasive pest is newer to Florida but spreading fast. The pasture mealybug has now been confirmed in 16 Florida counties and targets grasses — lawns, pastures, and sod farms. It feeds on grass roots and stems, causing yellowing, browning, and patchy die-off. First detected in Florida in 2023, it's become a growing concern for homeowners and farmers alike.
What to do: Watch for yellow or brown patches that don't respond to water or fertilizer. Part the grass near the base and look for white, cottony masses. Water deeply but less often to encourage strong roots. If you suspect an infestation, contact a lawn care professional or your county's agricultural extension office.
When to Call a Professional
Even with good prevention, some pest problems are too big to handle on your own. Call a pro if you've tried DIY methods and the problem keeps coming back, if you see signs of termites, if you're dealing with German cockroaches (they reproduce fast and are notoriously hard to eliminate), or if you just want year-round peace of mind with a recurring prevention plan.
Florida's summer heat isn't going anywhere, and neither are the pests that love it. But with a little awareness and the right approach, you can keep your home comfortable and pest-free all season long. If you're ever in doubt, a local pest control company knows Florida pests better than anyone and can tailor a plan to your specific situation.