The short version
Around Yakima, queens start nests in May, and colonies peak in late summer. Small, low paper wasp nests can be handled at dusk. Leave wall, ground and high nests to a pro.
- Treat nests at dusk, when wasps are home.
- Never seal a hole wasps are using.
- Ground and wall nests are best left to a pro.
- Knock down small nests early in spring.
- Call 911 for breathing trouble after a sting.
Anyone in Yakima dealing with wasps, hornets or yellowjackets at home.
What to look for
Near a door or deck, stings will happen. Wasps defend the area around their nest. Late-summer colonies are big and quick to sting.
- 1Large wasps circling porch lights after dark.
- 2Wasps clustered at a hummingbird feeder or ripe grapes.
- 3Wasps entering an attic vent, dryer vent or weep hole.
- 4Chewed, scarred wood on fences, decks or cedar siding.
- 5Yellowjackets streaming from the ground after mowing or trimming.
- 6A soft or discolored patch of drywall with faint buzzing.
Why it’s worth acting soon
- Nests grow all summer.
- Ground nests get disturbed by mowing.
- Wall nests can chew through into rooms.
- Stings are dangerous for anyone allergic.
Treatment options and typical costs
Inspection and Nest Identification
$75–$200
Not every buzzing insect is a wasp. Not every wasp is a threat. A careful look separates a lone paper wasp from a yellowjacket colony in Yakima.
- Time
- 45–75 minutes
- Best for
- Every job; species and nest location decide the method
Aerial Nest Treatment and Removal
$100–$400
A treated nest should go quiet within a day. A few stragglers are normal. Ask whether removal and a follow-up check are included.
- Time
- 30–90 minutes
- Best for
- Exposed paper wasp, hornet and bald-faced hornet nests
Preventive Spring Treatment and Follow-Up
$150–$400
Preventive work makes the most sense for Yakima homes that have had nests two years running, or where someone has a sting allergy. It is a modest cost compared with a wall-void job.
- Time
- 45–90 minutes
- Best for
- Sting allergies or repeat nest spots
Ground and Wall-Void Nest Treatment
$150–$500
Never seal a live void nest. Plugging the hole too early can drive wasps into the house.
- Time
- 30–60 minutes plus a return visit
- Best for
- Yellowjackets in lawns, retaining walls, soffits and wall voids
Prices are typical published ranges. Ask what’s included before you compare quotes.
In cold-winter areas, old nests are empty by now. It's a good time to fix vent covers and siding gaps before queens go looking in spring.Which wasps live around Yakima.
Bald-faced hornets build big gray nests in trees and eaves. They cause most stings. Western yellowjackets nest in the ground and in wall voids. They build open, umbrella-shaped combs under eaves and railings. Paper wasps are the most common around Yakima. They rarely sting. Mud daubers build tube-shaped mud nests.
Local wasps conditions in Yakima.
An inspection in Yakima usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Around Yakima, the area is mostly suburban, so wasps pressure can differ from one block to the next depending on how tight the entry points are and how much food, water, or shelter is close by. Yakima sits in a semi-arid climate, and that sets the pace for wasp activity here: mid-summer through fall (July-October). A provider who works Yakima and Washington every day can point out the specific conditions that matter most here, and getting the scope, price, and follow-up terms in writing makes it easier to compare options. Knowing Yakima's seasonal timing lets you schedule treatment before the busy stretch rather than after it, which usually means faster service and a more accurate quote.
An unscreened foundation vent is an easy way in for a yellowjacket queen. Wasps flying in and out of a vent all day are a sign of a nest inside.When they’re most active.
Nests die back after the first hard freeze in fall. Early spring is the easiest time to remove small starts.
Where they nest around houses here.
A ground nest looks like wasps streaming from one hole. Watch for traffic in and out of gaps. Check eaves, porch ceilings and the crawl vents. Many houses around Yakima have crawl spaces, and vents and access doors invite nests.
A year of wasps in Yakima.
- Spring: queens start new nests around May. Knock down small starts. - Winter: lows near 23°F in Yakima. Nests die; only queens survive. - Late summer: peak season. Workers hunt sweets near people. - Summer: highs near 89°F in Yakima help colonies grow fast.
Wasp, hornet or bee?
- Paper wasp: slim, long legs, open comb. - Honey bee: fuzzy and golden. about relocation. - Mud dauber: thin waist, mud tube nests. Rarely stings. - Hornet: larger, with a big closed paper nest. - Yellowjacket: bright yellow and black, nests in the ground.
If you get stung.
If someone carries an epinephrine pen, use it. 911 for trouble breathing or a swollen face or throat. An antihistamine can ease itching and swelling. Wash the sting and use a cold pack. Move away from the nest first.
Keeping wasps away from the patio.
- Food: cover plates and drinks outdoors. - Gaps: seal gaps after a nest is gone. - Spring checks: knock down small nests early. - Fruit: pick up fallen fruit. - Trash: keep lids tight and bins away from doors.
Ground nests: what to do.
Pros treat ground nests at night, when the colony is home. Don't pour gasoline or water in. Don't mow over it. Keep kids and pets away. Mark the hole with a flag.
A nest, or just visitors?
A nest shows steady traffic to one spot. Wasps on flowers or trash cans may come from far away. Follow the line back to an eave, vent, shrub or hole. Watch at dusk, when they fly home.
Treating a small nest yourself, safely.
- Only if it’s small, low and out in the open. - Leave it overnight, then bag the nest. - Never spray from a ladder. - Use a jet wasp spray from several feet away. - Wear long sleeves, pants and gloves. - Wait until dusk, when wasps are home and slow. - Never if anyone in the house is allergic.
Wasps and pets.
Most stings just swell a little. Dogs often snap at wasps and get stung on the face. Keep pet food and water bowls indoors in late summer. your vet if the throat swells or breathing changes.
Kids and wasps.
Swatting makes a sting more likely. Teach kids to walk away calmly. Use cups with lids for sweet drinks outside. Check play sets, slides and playhouses for nests each spring.
After the nest is gone.
Seal the gap a wall nest used once it's quiet. Wasps don't reuse old nests. Knock down small new nests early next spring. Check nearby eaves for new starts.
Wasps at picnics and barbecues.
- Drinks: use cups with lids or straws. - Kids: teach them to walk away calmly. - Calm: don’t swat; slowly move away. - Trash: bag scraps and close the bin. - Food: keep it covered until you eat.
Ground nests in the lawn.
Watch for wasps flying in and out of the grass. Yellowjackets often nest in old rodent holes. Mark it, and keep mowers and kids away until it's treated.
Questions to ask before you sign.
- What kind of wasp is it? - Is a return visit included? - Is removal of the dead nest included? - How will you treat a nest inside the wall?
What affects the price
- Sting allergy in the home requiring extra precautions.
- Roof pitch and safe access to the nest location.
- Preventive spring treatment bundled with removal.
- Local labor rates and seasonal demand.
- Distance from the company's base and travel time.
- Number of nests found on the property.
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What's your biggest concern about wasps?
When to call for help
Don't seal a hole wasps are using. They'll find another way in. Call for nests in walls, attics, the ground, or anywhere high. right away if anyone in the house is allergic.
What you can do yourself
A small, reachable paper wasp nest is a fair DIY job. Spray it at dusk with a wasp aerosol. Knock it down the next day. Big, high or hidden nests are a job for a pro.
Wasps in Yakima
Yakima has a semi-arid climate, and wasps activity here tends to pick up mid-summer through fall (July-October). Around Yakima, most of the housing is suburban, so the usual entry points, moisture spots, and sheltered areas near the structure are what an inspection checks first. Around Yakima, 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 Yakima and Washington can point out the specific conditions that matter most here before you commit to a plan. Yakima only gets about 8 inches of rain a year, so local wasps often gather at pools, fountains and dripping taps. Winter lows near 23°F in Yakima end the season; only new queens survive, tucked into sheltered spots. In Yakima's neighborhoods, eaves, decks, play sets and shrubs are favorite nest sites.
Local research
Wasps in Yakima, WA: what the public record shows
Before you compare quotes, it helps to know which wasps actually live in Washington, when they are busiest around Yakima, and what the state figures look like. Everything below links to the agency or university page it came from.
Northern giant hornet nests eradicated in Washington (USDA APHIS)
The hornet is declared eradicated; report any suspected sighting to WSDA.
USDA APHISShare of confirmed northern giant hornet detections that came from public reports
Public reporting remains the backbone of WSDA's hornet surveillance.
USDA APHISWasp species recorded in Washington
- Western yellowjacket (Vespula pensylvanica) — UC IPM: 'the most commonly encountered species and is sometimes called the "meat bee"' in California and the Western states; ground and wall-void nester and aggressive scavenger…
- German yellowjacket (Vespula germanica) — UC IPM: 'becoming more common in many urban areas of California, where it frequently nests in houses.' Named among Ohio's three main species (German, Eastern, Common yellowjacke…
- Bald-faced hornet (Dolichovespula maculata) — Penn State: 'found in most of the 48 contiguous states and D.C., throughout Canada and in Alaska'; actually an aerial yellowjacket that builds the football-shaped gray paper nes…
- European paper wasp (Polistes dominula) — Penn State: 'first reported in 1978 around Boston', now 'coast to coast ... although they are apparently less common in the Southeast and Great Plains'; nests in 'eaves of struc…
When wasps are busiest around Yakima
Western yellowjacket queens start nests each spring, colonies grow through summer and scavenge aggressively in fall before dying off; only fertilized queens overwinter (USU).
APHIS: the northern giant hornet 'first captured national attention in late 2019 when it was detected near Blaine, Washington' and 'has been eradicated from Washington State and the United States'. WSDA maintains hornet identification and sighting-report pages.
Rules that apply in Washington
For context, nationally
- 788 — Deaths from hornet, wasp, and bee stings, 2011–2021 (US). CDC MMWR
- 72 deaths per year — Average annual sting deaths, 2011–2021 (US). CDC MMWR
Sources: USDA APHIS; CDC MMWR; Yellowjackets and Other Social Wasps (Pest Notes); Baldfaced Hornet; European Paper Wasp. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep wasps away
- Note where nests appeared and inspect there early next year.
- Avoid bright floral clothing and strong perfume near nests.
- Screen attic, gable and dryer vents with fine mesh.
- Keep trash cans lidded and rinse recycling before binning.
- Repair torn window screens and door sweeps.
- Keep compost covered and away from the house.
Jot down where nests turned up this year. Queens often pick the same eaves and gaps, so you'll know where to look first next spring.Did you know?
Only newly mated queens survive the winter
Fig wasps pollinate figs and are smaller than a rice grain
Questions people ask
What should I do if I get stung?
An antihistamine helps with itching. 911 for trouble breathing or a swelling throat.
Should I be worried about a nest in the ground?
Ground nests are usually yellowjackets. Mowing over them sets them off. Yes, if it's near a path or play area.
How do I find a good wasp control company?
Check that they're licensed in Washington. Ask how they treat hidden nests and whether removal is included.
Are wasps dangerous to my pets?
Dogs often get stung on the face. your vet if swelling spreads or breathing changes. They can be.
How do I know if I have wasps, hornets or yellowjackets?
Yellowjackets nest in the ground or walls. Hornets build big, gray, closed nests. Paper wasps build open, umbrella-shaped combs.
When is wasp season in Yakima?
Around Yakima, queens start nests in May, and colonies peak in late summer. Nests die back after the first hard freeze in fall.
Are hornets common in Yakima?
Bald-faced hornets are, in trees and on eaves. Most stings come from yellowjackets, though.
Nearby cities
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Sources (9)
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 Wasp Exterminator · Updated September 11, 2026 · How we write these guides