The short version
Around Norfolk, 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.
Homeowners and renters in Norfolk who want their yard back.
What to look for
Often the source is a neighbor's yard or a storm drain. In summer heat, eggs become biting adults in about a week. Mosquitoes breed in standing water, even a bottle cap's worth.
- 1A sump pit or crawl space holding water.
- 2Clogged gutters holding water after rain.
- 3A neighbor's pool turning green and untended.
- 4Ornamental pond with no fish or pump.
- 5Welts on ankles and calves after yardwork.
- 6Tarps, toys, or tires holding rainwater.
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 Norfolk
Spring
dump water and clean gutters before May.
Summer
peak season in Norfolk, 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 Norfolk 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
A good pro checks landing counts between visits. Numbers climbing early means a missed breeding site.
- Time
- 15–30 minutes per check; season runs spring through first frost
- Best for
- Anyone who wants the yard usable all summer
Misting Systems and In2Care-Style Stations
misting $2,000–$4,500 installed plus refills; stations $200–$500 per season
Stations suit small Norfolk lots, townhome yards, and properties where the owner would rather not have spray. They work slowly, so pair them with source reduction.
- Time
- Misting: half a day. Stations: under an hour.
- Best for
- Specific yards: heavy outdoor use or spray-averse owners
Barrier (Residual) Yard Treatment
$75–$200 per visit; $350–$900 per season
Crews should skip blooming plants and vegetable beds when spraying a Norfolk property to protect bees and food crops. A careful applicator treats resting cover, not the whole yard.
- Time
- 20–45 minutes per visit, repeated every 3–4 weeks
- Best for
- Shaded yards with shrubs, ivy, and dense landscaping
Prices are typical published ranges. Ask what’s included before you compare quotes.
Adult mosquitoes spend the day in shady, leafy beds like this one, so that's where a barrier treatment goes.How mosquito treatment works in Norfolk.
Treatment has two parts. First, find and remove the water where they breed. Then spray where the adults rest. In Norfolk, 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 Norfolk.
Asian tiger mosquitoes are common around Norfolk. 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. Near the coast, salt-marsh mosquitoes can fly into Norfolk from miles away.
Mosquitoes that bite indoors usually slip in through gaps around doors or torn window screens.Mosquito season in Norfolk.
Numbers usually peak in July and August. West Nile cases usually peak in late summer.
A year of mosquitoes in Norfolk.
- Spring: dump water and clean gutters before May. - Summer: peak season in Norfolk, especially July and August. - Fall: activity fades with cooler nights. - Winter: fix drainage and store containers upside down.
The weekly water walk.
- Gutters: clear leaves so water drains. - Saucers and pots: empty them or add sand. - 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.
Avoiding bites.
- Repellent: DEET, picaridin, IR3535 or oil of lemon eucalyptus. - Clothing: long sleeves and pants help at dusk. - 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.
Low-cost ways to cut mosquitoes.
- Mosquito dunks: Bti tablets kill larvae in rain barrels and ponds. - Mosquito fish: they eat larvae in ornamental ponds. - 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 or look-alike?
- Crane flies: look like giant mosquitoes. They don’t bite. - Non-biting midges: swarm near water at dusk. Harmless, just annoying. - No-see-ums: tiny biting gnats near marshes. Screens need a finer mesh. - Mosquitoes: slim, long legs, and a needle-like mouth.
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.
A visit usually takes 20 to 45 minutes. The tech walks the yard first. They dump or treat standing water. Larvicide goes in water you can't drain. Then they spray shady shrubs, where adults rest. Most plans repeat every three to four weeks.
Rain barrels and ponds.
- Barrels: cover openings with fine mesh. - Ponds: fish and moving water keep larvae down. - 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.
Questions to ask before you sign.
- What product will you spray? - How often will you come? - 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 affects the price
- Re-treatment policy between scheduled visits.
- Special-event timing and rush scheduling.
- In2Care-style station count and servicing.
- Lot size and total acreage treated.
- One-time visit versus a seasonal plan.
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What's your biggest concern about mosquitoes?
When to call for help
Ponds, drains and dense shrubs are hard to handle yourself. early in the season, before the first big wave. Dumping water should come first. Call if bites still keep you indoors.
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 Norfolk
Norfolk gets about 47 inches of rain a year, so containers and low spots refill constantly through the season. Summer highs around 87°F in Norfolk speed up the life cycle, and average humidity near 72% keeps adults active. In denser parts of Norfolk, storm drains, catch basins and gutters are big breeding spots. Norfolk has a humid subtropical climate, and mosquitoes activity here tends to pick up late spring through early fall; year-round in the deep south. In Norfolk, 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 Norfolk, 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 Norfolk and Virginia can point out the specific conditions that matter most here before you commit to a plan. In Norfolk, 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 Norfolk, 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.
Local research
Mosquitoes in Norfolk, VA: what the public record shows
Before you compare quotes, it helps to know which mosquitoes actually live in Virginia, when they are busiest around Norfolk, 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 Norfolk
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
- Replace corrugated downspout extensions with smooth pipe.
- Cover or drill drainage holes in tires.
- Keep tarps taut so they shed water.
- Run a fan on the patio at dusk.
- Trim shrubs and ivy to reduce resting cover.
Jot down where you found standing water and when you get bitten. It gives a pro a head start.Did you know?
Only females bite; males sip nectar
Mosquitoes home in on carbon dioxide from breath
Questions people ask
Why are there so many mosquitoes in my yard specifically?
Usually there's water nearby, like a clogged gutter or tarp. Shady, damp plants give them a place to rest.
What are In2Care stations and do they work?
They're small water traps. Mosquitoes visit, then carry larvicide to other water. They work best against container breeders like tiger mosquitoes.
Are misting systems worth it?
For a few homes, yes. They're costly to install and need refills. Most yards do fine with source removal and regular spraying.
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?
Applied by the label, it's considered low risk once dry. Keep kids and pets inside until it dries. Ask them to avoid flowers.
Do store-bought mosquito products actually work?
In Norfolk, dIY sprays and foggers give temporary relief, but they do not stop the next generation from breeding in the standing water nearby. In Norfolk, the most effective DIY step is removing the water, and professional larvicide and barrier treatments handle the rest.
When is mosquito season in Norfolk?
It runs from about May through September. Daytime biters are tiger mosquitoes; evening biters are usually house mosquitoes.
Do mosquitoes in Norfolk carry West Nile?
They can. West Nile is found in every lower-48 state, Virginia included. Cases usually peak in late summer. Repellent and dumping standing water are your best protection.
Nearby cities
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Sources (10)
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