The short version
Around Glendale, mosquito season runs from about March into November. 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 Glendale 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.
- 1Corrugated downspout extensions that never drain.
- 2A neighbor's pool turning green and untended.
- 3Being bitten in full daylight, not just evening.
- 4Standing water in low spots a week after rain.
- 5Bites getting worse after each wet spell.
- 6Wriggling larvae in birdbaths, buckets, or saucers.
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 Glendale
Spring
the first wave arrives early in Glendale. Start treatments then.
Summer
with highs near 88°F in Glendale, check water twice a week.
Fall
numbers stay high. Keep gutters clear of leaves.
Winter
a good time to fix drainage and low spots.
Treatment options and typical costs
Property Inspection for Breeding Sites
$0–$150 (often bundled with a first treatment)
Most mosquitoes biting you in Glendale were born within a few hundred feet of your door, so the inspection maps every container, drain, and puddle on the lot. That map becomes the treatment plan.
- Time
- 30–60 minutes
- Best for
- Every yard; finds where mosquitoes actually breed
Misting Systems and In2Care-Style Stations
misting $2,000–$4,500 installed plus refills; stations $200–$500 per season
Stations suit small Glendale 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
Source Reduction and Larviciding
$75–$150 per visit
Larvicides used by licensed pros in Glendale target mosquito larvae and are low in toxicity to pets, fish, and pollinators when used as the label directs. Ask which product is being used and why.
- Time
- 45–90 minutes
- Best for
- Yards with standing water, clogged gutters, ponds, or drains
Barrier (Residual) Yard Treatment
$75–$200 per visit; $350–$900 per season
A barrier treatment coats the undersides of leaves, shrubs, and shaded surfaces where adult mosquitoes rest during the day around your Glendale home. Adults that land there pick up a lethal dose.
- 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.
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 Glendale.
For Glendale homes, the season runs from about March into November, 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. Treatment has two parts. First, find and remove the water where they breed. Then spray where the adults rest.
Which mosquitoes bite around Glendale.
They also bite by day, often near or inside homes. 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 Glendale from miles away. Asian tiger mosquitoes are common around Glendale. They're black-and-white and bite by day. They breed in small containers. Yellow fever mosquitoes live around Glendale too.
Mosquitoes that bite indoors usually slip in through gaps around doors or torn window screens.Mosquito season in Glendale.
Plan on regular visits. West Nile cases usually peak in late summer. That's a long season.
A year of mosquitoes in Glendale.
- Summer: with highs near 88°F in Glendale, check water twice a week. - Fall: numbers stay high. Keep gutters clear of leaves. - Winter: a good time to fix drainage and low spots. - Spring: the first wave arrives early in Glendale. Start treatments then.
The weekly water walk.
- 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. - Gutters: clear leaves so water drains.
Avoiding bites.
- 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. - Repellent: DEET, picaridin, IR3535 or oil of lemon eucalyptus.
Low-cost ways to cut mosquitoes.
- 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 dunks: Bti tablets kill larvae in rain barrels and ponds.
Mosquito or look-alike?
- 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. - Crane flies: look like giant mosquitoes. They don’t bite.
When a bite needs a doctor.
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. Most bites just itch for a few days. Most people infected with West Nile virus never feel sick.
Protecting your pets.
Ask your vet about year-round heartworm prevention. Change pet water bowls daily. Keep pets inside while a yard spray dries. Dogs get heartworm from mosquito bites. Cats can too.
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.
- 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. - Barrels: cover openings with fine mesh.
Questions to ask before you sign.
- 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 product will you spray?
What affects the price
- Special-event timing and rush scheduling.
- Number of visits the local season needs.
- Ponds, creeks, or wetland edges on the property.
- Standing water requiring larvicide.
- Lot size and total acreage treated.
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What's your biggest concern about mosquitoes?
When to call for help
early in the season, before the first big wave. Ponds, drains and dense shrubs are hard to handle yourself. Call if bites still keep you indoors. Dumping water should come first.
What you can do yourself
A pro adds larvicide for water you can't drain. They also spray where adults rest, every few weeks. The biggest win is free: dump standing water every week. Use repellent and run a fan on the patio.
Mosquitoes in Glendale
Glendale only gets about 21 inches of rain a year, so local mosquitoes breed where people add water: sprinklers, pools, fountains and AC drips. Summer highs around 88°F in Glendale speed up the life cycle. In denser parts of Glendale, storm drains, catch basins and gutters are big breeding spots. Glendale has a mediterranean climate, and mosquitoes activity here tends to pick up late spring through early fall; year-round in the deep south. For Glendale homes, 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. For Glendale homes, 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 Glendale and California can point out the specific conditions that matter most here before you commit to a plan.
Local research
Mosquitoes in Glendale, CA: what the public record shows
Before you compare quotes, it helps to know which mosquitoes actually live in California, when they are busiest around Glendale, 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.
CDCMosquito species recorded in California
- Yellow fever mosquito (Aedes aegypti) — CDC lists Aedes aegypti as more likely than Ae. albopictus to spread dengue, Zika, and chikungunya; prefers human hosts and lives in and around homes. Tropical, subtropical, and…
When mosquitoes are busiest around Glendale
Washington DOH: detections from May (earliest) to October (latest). California reports its heaviest WNV activity in late summer; CDC peak is late August to early September.
CDC lists California among states with limited local dengue spread from Aedes aegypti.
Rules that apply in California
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; California Department of Public Health / MVCAC; Potential Range of Aedes Mosquitoes. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep mosquitoes away
- Trim shrubs and ivy to reduce resting cover.
- Dump and scrub birdbaths every week.
- Cover or drill drainage holes in tires.
- Replace corrugated downspout extensions with smooth pipe.
- Keep pools chlorinated and covered when unused.
- Book barrier treatments before the season starts.
Jot down where you found standing water and when you get bitten. It gives a pro a head start.Did you know?
A female's wings beat hundreds of times per second
Only females bite; males sip nectar
Questions people ask
When should mosquito treatments start each year?
Before the first big wave. Around Glendale, the season runs from about March into November, so start a few weeks before.
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.
Do I need a seasonal plan or is one treatment enough?
One treatment helps for an event or a few weeks. Barrier sprays fade in three to four weeks. Steady relief takes repeat visits.
What does a mosquito inspection involve?
The tech walks the yard looking for standing water. They also check shady spots where adults rest. Gutters, saucers, tarps and low spots get checked first.
Do store-bought mosquito products actually work?
For Glendale homes, dIY sprays and foggers give temporary relief, but they do not stop the next generation from breeding in the standing water nearby. For Glendale homes, the most effective DIY step is removing the water, and professional larvicide and barrier treatments handle the rest.
When is mosquito season in Glendale?
It runs from about March into November. Daytime biters are tiger mosquitoes; evening biters are usually house mosquitoes.
Do mosquitoes in Glendale carry West Nile?
They can. West Nile is found in every lower-48 state, California included. Cases usually peak in late summer. Repellent and dumping standing water are your best protection.
Nearby cities
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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