The short version
Around Evansville, mosquito season runs from about May through September. Treatment means removing water and treating what you can't drain. A barrier spray follows every few weeks.
- Dump standing water every week.
- Daytime biters are usually tiger mosquitoes.
- Barrier sprays last about three to four weeks.
- Larvicide handles water you can’t drain.
- Use repellent with DEET, picaridin or IR3535.
Anyone in Evansville tired of mosquito bites at home.
What to look for
In summer heat, eggs become biting adults in about a week. Mosquitoes breed in standing water, even a bottle cap's worth. Often the source is a neighbor's yard or a storm drain.
- 1Swarms rising from shrubs when you brush past.
- 2Dogs testing positive for heartworm.
- 3Egg rafts floating on stagnant water.
- 4Whining near your ears at night indoors.
- 5A sump pit or crawl space holding water.
- 6A neighbor's pool turning green and untended.
Why it’s worth acting soon
- Each new generation is bigger than the last.
- Bites can spread West Nile virus.
- Itchy welts, especially for kids.
- Heartworm risk for dogs.
bite, to get protein for their eggsOnly female mosquitoesUS CDC in standing water, from a bottle cap to a pondMosquitoes breedUS EPA West Nile virus is the most common mosquito-borne disease in the U.S.Mosquito diseasesUS CDC 📅
Mosquito activity through the year in Evansville
Spring
dump water and clean gutters before May.
Summer
peak season in Evansville, especially July and August.
Fall
activity fades with cooler nights.
Winter
fix drainage and store containers upside down.
Treatment options and typical costs
Property Inspection for Breeding Sites
$0–$150 (often bundled with a first treatment)
Expect a written or verbal summary of what was found on your Evansville property, including problems on the neighbor's side of the fence. You cannot treat next door, but you can plan around it.
- Time
- 30–60 minutes
- Best for
- Every yard; finds where mosquitoes actually breed
Monitoring and Seasonal Plans
$50–$150 per follow-up visit; $350–$900 per season bundled
If bites come back between visits, what happens next? Many plans include a re-spray within a set window. Ask your pro before you sign.
- Time
- 15–30 minutes per check; season runs spring through first frost
- Best for
- Anyone who wants the yard usable all summer
Barrier (Residual) Yard Treatment
$75–$200 per visit; $350–$900 per season
Relief usually shows within a day or two.
- Time
- 20–45 minutes per visit, repeated every 3–4 weeks
- Best for
- Shaded yards with shrubs, ivy, and dense landscaping
Misting Systems and In2Care-Style Stations
misting $2,000–$4,500 installed plus refills; stations $200–$500 per season
Misting systems put product into the air on a schedule whether mosquitoes are present or not, which raises resistance and pollinator concerns in Evansville neighborhoods. Ask about sensors, timers, and off-switch etiquette.
- Time
- Misting: half a day. Stations: under an hour.
- Best for
- Specific yards: heavy outdoor use or spray-averse owners
Prices are typical published ranges. Ask what’s included before you compare quotes.
Leaf-clogged gutters and downspouts hold water out of sight. Clearing them in fall means fewer places to breed in spring.How mosquito treatment works in Evansville.
Treatment has two parts. First, find and remove the water where they breed. Then spray where the adults rest. In Evansville, the season runs from about May through September, so a plan usually starts in spring and runs to the end of the season. Larvicide handles water you can't drain, like ponds or drains. Barrier spray covers shady shrubs and leaves.
Which mosquitoes bite around Evansville.
Asian tiger mosquitoes are common around Evansville. They're black-and-white and bite by day. They breed in small containers. House mosquitoes (Culex) bite from dusk into the night. They breed in storm drains. They're the main West Nile carriers.
Mosquitoes that bite indoors usually slip in through gaps around doors or torn window screens.Mosquito season in Evansville.
Numbers usually peak in July and August. West Nile cases usually peak in late summer.
A year of mosquitoes in Evansville.
- Summer: peak season in Evansville, especially July and August. - Fall: activity fades with cooler nights. - Winter: fix drainage and store containers upside down. - Spring: dump water and clean gutters before May.
The weekly water walk.
- Toys and buckets: store them upside down. - Tarps and covers: pull them tight so water runs off. - Birdbaths: change the water twice a week. - Pet bowls: refresh daily. - AC drip lines and downspouts: make sure water drains away. - Tree holes: fill them with sand. - Gutters: clear leaves so water drains. - Saucers and pots: empty them or add sand.
Avoiding bites.
- Fans: a patio fan keeps weak-flying mosquitoes away. - Screens: repair holes in window and door screens. - Timing: tiger mosquitoes bite by day; house mosquitoes at dusk. - Repellent: DEET, picaridin, IR3535 or oil of lemon eucalyptus. - Clothing: long sleeves and pants help at dusk.
Low-cost ways to cut mosquitoes.
- Pumps and fountains: moving water breeds far fewer mosquitoes. - Trimming: thin out dense shrubs and tall grass. - Lights: yellow bug lights attract fewer insects to the porch. - Mosquito dunks: Bti tablets kill larvae in rain barrels and ponds. - Mosquito fish: they eat larvae in ornamental ponds.
Mosquito or look-alike?
- No-see-ums: tiny biting gnats near marshes. Screens need a finer mesh. - Mosquitoes: slim, long legs, and a needle-like mouth. - Crane flies: look like giant mosquitoes. They don’t bite. - Non-biting midges: swarm near water at dusk. Harmless, just annoying.
When a bite needs a doctor.
Most bites just itch for a few days. Most people infected with West Nile virus never feel sick. About one in five get a fever, headache or body aches. See a doctor for high fever, stiff neck or confusion. Spreading swelling or an infected-looking bite needs a check too.
Protecting your pets.
Dogs get heartworm from mosquito bites. Cats can too. Ask your vet about year-round heartworm prevention. Change pet water bowls daily. Keep pets inside while a yard spray dries.
What a treatment visit looks like.
Larvicide goes in water you can't drain. Then they spray shady shrubs, where adults rest. Most plans repeat every three to four weeks. A visit usually takes 20 to 45 minutes. The tech walks the yard first. They dump or treat standing water.
Rain barrels and ponds.
- Bird baths: change the water every few days. - Gutters: clear them so water drains away. - Tarps: shake out any that hold rainwater. - Pool covers: drain standing water after rain. - Barrels: cover openings with fine mesh. - Ponds: fish and moving water keep larvae down.
Questions to ask before you sign.
- Do you treat standing water too? - What happens if bites come back between visits? - How do you protect bees and flowers? - When can kids and pets go back outside? - What product will you spray? - How often will you come?
What affects the price
- Gutter cleaning or drainage fixes bundled in.
- In2Care-style station count and servicing.
- Number of visits the local season needs.
- Lot size and total acreage treated.
- Special-event timing and rush scheduling.
- Re-treatment policy between scheduled visits.
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What's your biggest concern about mosquitoes?
When to call for help
Call if bites still keep you indoors. Dumping water should come first. early in the season, before the first big wave. Ponds, drains and dense shrubs are hard to handle yourself.
What you can do yourself
The biggest win is free: dump standing water every week. Use repellent and run a fan on the patio. A pro adds larvicide for water you can't drain. They also spray where adults rest, every few weeks.
Mosquitoes in Evansville
In Evansville, most of the housing is urban, so the usual entry points, moisture spots, and sheltered areas near the structure are what an inspection checks first. In Evansville, take a minute to note where you have seen activity and when it appears, so the inspection is faster and the quote more accurate. A local provider who knows Evansville and Indiana can point out the specific conditions that matter most here before you commit to a plan. In Evansville, before you book, ask whether the inspection is included, what the treatment plan covers, how many visits to expect, and what the written quote includes. In Evansville, getting the scope, the prep steps, and any follow-up terms in writing makes it much easier to compare providers fairly, and a good provider will walk you through each of these without pressure. Evansville gets about 46 inches of rain a year, so containers and low spots refill constantly through the season. Summer highs around 89°F in Evansville speed up the life cycle, and average humidity near 72% keeps adults active. In denser parts of Evansville, storm drains, catch basins and gutters are big breeding spots. Evansville has a humid subtropical climate, and mosquitoes activity here tends to pick up late spring through early fall; year-round in the deep south.
Local research
Mosquitoes in Evansville, IN: what the public record shows
Before you compare quotes, it helps to know which mosquitoes actually live in Indiana, when they are busiest around Evansville, and what the state figures look like. Everything below links to the agency or university page it came from.
West Nile neuroinvasive disease cases, 2024
Neuroinvasive counts are the most reliable state comparison because nearly all severe cases are diagnosed and reported.
CDCWhen mosquitoes are busiest around Evansville
CDC: West Nile transmission June through October, peaking late August to early September. Illinois found its first positive mosquito batch of 2025 on May 9, so larval control should start in May.
For context, nationally
- 1,808 — West Nile virus disease cases reported, 2024. CDC
- 1,347 (75% of cases); 173 deaths — West Nile neuroinvasive disease cases, 2024. CDC
Sources: CDC. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep mosquitoes away
- Rake leaf litter from shaded beds.
- Clean gutters each spring and fall.
- Wear DEET or picaridin repellent outdoors.
- Trim shrubs and ivy to reduce resting cover.
- Empty plant saucers after every rain.
- Repair torn window and door screens.
Jot down where you found standing water and when you get bitten. It gives a pro a head start.Did you know?
Tiger mosquitoes arrived in used tires in the 1980s
Larvae are called wrigglers; pupae are tumblers
Questions people ask
When should mosquito treatments start each year?
Before the first big wave. Around Evansville, the season runs from about May through September, so start a few weeks before.
How do I choose a mosquito control company?
Ask what products they use and how often they visit. Ask what happens if bites come back. Check that they're licensed in Indiana.
Can mosquito control help with West Nile risk?
It can lower it by cutting the number of biting mosquitoes. Repellent and dumping standing water still matter most.
Is mosquito spraying safe for pets, kids, and bees?
Keep kids and pets inside until it dries. Ask them to avoid flowers. Applied by the label, it's considered low risk once dry.
Will mosquito treatment kill bees and butterflies?
Ask them to skip blooming plants. Spraying when bees rest helps too. It can if spray hits flowers.
How often does mosquito treatment need to be redone?
In Evansville, mosquito control works by removing standing water, treating the water that cannot be drained, and applying barrier treatments where adults rest. In Evansville, because they keep breeding through the season, an ongoing plan usually works best.
When is mosquito season in Evansville?
It runs from about May through September. Daytime biters are tiger mosquitoes; evening biters are usually house mosquitoes.
Do mosquitoes in Evansville carry West Nile?
Cases usually peak in late summer. Repellent and dumping standing water are your best protection. They can. West Nile is found in every lower-48 state, Indiana included.
Sources (11)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Mosquito Exterminator · Updated September 11, 2026 · How we write these guides