What does the City of Beaverton do about mosquitoes?

The City, in collaboration with Washington County, runs a public health-focused program that monitors populations and treats mosquito larvae in standing water on public lands like wetlands and floodplains. They do not treat private property.

How can I get free mosquitofish for my pond?

Washington County provides free mosquitofish to residents for use in contained, permanent water features like ornamental ponds or unused pools. You can call the county's Environmental Health department at 503-846-8722 for more information and availability.

When should I start mosquito treatments for my yard?

The active mosquito season in Beaverton typically begins in April. Starting a treatment plan in early spring can help manage populations before they peak in the summer months.

How long does a professional mosquito barrier spray last?

Most residual barrier treatments are effective for about 21 to 30 days. Professionals typically schedule visits on a monthly cycle throughout the season to maintain protection.

Are mosquito treatments safe for my pets and family?

Licensed professionals use EPA-registered products and are trained in their safe application. It's important to follow any specific instructions provided by the technician, such as keeping pets off treated surfaces until they are dry.

Can I handle mosquito control myself?

Yes, for source reduction and small areas. Eliminating standing water is the most effective DIY step. For larger properties or significant mosquito problems, professional equipment and access to professional-grade products often provide more comprehensive and longer-lasting results.

What's the difference between larvicide and adulticide treatments?

Larvicides target mosquito larvae in water, preventing them from becoming adults. Adulticides, like barrier sprays, target flying adult mosquitoes. Public programs heavily emphasize larviciding as a preventive measure, while private yard treatments often combine both approaches.

Pest Control in Beaverton, OR,

Enjoying your backyard in Beaverton shouldn't require a battle with buzzing, biting mosquitoes. Effective mosquito management is a shared responsibility between public health initiatives and private property services. This guide explains the local landscape of mosquito abatement, from county-wide prevention programs to professional yard treatments, helping you understand your options for creating a more comfortable and protected outdoor space.

Insight Pest Control - Hillsboro

315 E Main St Suite 102, Hillsboro, OR 97123

Insight Pest Control - Hillsboro provides pest control services in Portland, OR, specializing in the removal and management of various pests including bed bugs, ants, rodents, wasps, and mosquitoes. Their services include comprehensive interior and exterior treatments, rodent baiting, and specialized mosquito and lawn pest control. The company offers thorough inspections to identify pest activity and tailor treatments accordingly. Insight Pest Control serves multiple locations in Oregon and Washington, ensuring pest management solutions for residential environments. Their approach includes eco-friendly methods and full-service pest management.

5.0

1.2k Reviews

Insight Pest Solutions

704 Main St #305-6, Oregon City, OR 97045

Insight Pest Solutions is a pest control company serving Portland, OR, and nearby areas. They offer services such as bed bug treatment, ant control, rodent extermination, mosquito control, and bee and wasp removal. The company provides comprehensive pest management solutions tailored to residential and commercial needs.

4.9

478 Reviews

The Killers Pest Control

portland

The Killers Pest Control is a pest control company serving Portland, OR, with over 30 years of experience in residential and commercial pest management. They specialize in identifying and eliminating a wide range of pests including rodents, cockroaches, carpenter ants, bed bugs, mosquitoes, bees, wasps, and termites. Using Integrated Pest Management methods, they provide customized treatment plans tailored to each property, focusing on long-term pest elimination rather than temporary fixes. Their services include thorough structural inspections, barrier treatments, and ongoing pest management plans to maintain pest-free environments year-round.

4.9

421 Reviews

Sprague Pest Solutions

9106 NE Marx Dr, Portland, OR 97220

Sprague Pest Solutions is a family-owned commercial pest control company based in Portland, OR. They provide comprehensive pest management services including rodent and insect control, bed bug inspections, bird exclusion, mosquito abatement, termite baiting, and fumigation alternatives. Their approach uses advanced, science-based solutions tailored to each business, supported by online reporting and communication tools to ensure compliance and audit readiness. Sprague Pest Solutions has over 20 years of experience and offers 24/7 client access through a web portal for alerts and billing.

4.9

225 Reviews

Antworks Pest Control

portland

Antworks Pest Control is a family-owned company serving Portland, OR, and the surrounding metro areas including Vancouver and Beaverton. They provide residential and commercial pest control services specializing in ants, rodents, bed bugs, termites, wasps, and other common pests in the Pacific Northwest. Their certified technicians use Integrated Pest Management (IPM) strategies to inspect, treat, and prevent infestations with flexible plans ranging from one-time treatments to regular maintenance. Antworks Pest Control has over 100 five-star reviews and offers tailored pest management solutions without long-term contracts.

4.9

192 Reviews

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Understanding Beaverton's Mosquito Season

The active period for mosquitoes in the Pacific Northwest, including Beaverton, typically runs from April through September¹. Warmer temperatures and spring rains create ideal breeding conditions. While the local climate may not support the same extreme populations as more humid regions, the species present can still be significant nuisances and potential vectors for disease. Understanding this seasonal pattern is key to timing any preventive or treatment actions on your property.

Public Mosquito Management: A Community-Wide Shield

The City of Beaverton and Washington County collaborate on vector control programs designed to protect public health on a broad scale. These efforts are guided by an Integrated Mosquito Management (IMM) strategy, which emphasizes prevention and environmentally responsible methods² ³.

Key Activities of Public Programs

Surveillance and Monitoring: Officials track mosquito populations to identify problem areas and assess disease risk².
Source Reduction and Habitat Modification: This involves managing public landscapes to eliminate or alter standing water where mosquitoes breed² ⁴.
Larviciding: The primary control method involves treating standing water on public lands-such as wetlands, floodplains, and stormwater management areas-with products that target mosquito larvae before they can become flying adults² ⁵.
Public Education: Providing residents with resources and tips for reducing mosquito habitats on their own property is a cornerstone of the program.

Crucially, these public efforts are almost always limited to public land. They are not designed to treat individual private yards⁶. These services are funded by the county and city, so there is generally no direct cost to residents for the area-wide treatments² ⁷.

A Unique Local Resource: Free Mosquitofish

Washington County offers a valuable and natural tool for residents: free mosquitofish (Gambusia affinis). These small fish are voracious consumers of mosquito larvae. Residents can obtain them for use in contained, permanent water features on their property, such as ornamental ponds, unused swimming pools, or animal watering troughs² ⁴. This is an effective, chemical-free component of backyard mosquito prevention. For details on obtaining mosquitofish, residents can call Washington County Environmental Health at 503-846-8722.

Private Mosquito Control: Protecting Your Personal Oasis

For targeted protection of your yard, patio, or commercial property, private pest and mosquito control companies offer specialized services. These providers focus on creating a protective barrier around your immediate living spaces.

Common Service Methods from Professionals

Barrier Sprays: This is the most common service. A technician applies a residual treatment to the perimeter of your yard, focusing on foliage, under decks, and other areas where adult mosquitoes rest. These treatments are designed to reduce the adult mosquito population on your property.
Property Inspection and Source Reduction: A thorough inspection is a critical first step. A professional will identify potential breeding sites like clogged gutters, plant saucers, or other containers holding standing water and provide recommendations for elimination⁸.
Larvicide Treatments for Ponds: For properties with decorative ponds or other permanent water that cannot be drained, professionals can apply specific, EPA-registered larvicides that are safe for use around fish and wildlife.
Combination Plans: Many companies offer plans that bundle mosquito control with treatments for other nuisance pests like ticks and fleas, providing broader protection.

What to Expect from a Service Plan

Treatments are typically applied every 21 to 30 days during the peak season, as the effectiveness of barrier sprays diminishes over time due to weather and sunlight¹ ⁹. The initial visit often includes a detailed inspection and source reduction advice, followed by the first application.

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Understanding Costs for Private Mosquito Abatement

Pricing for private mosquito management depends on your property size, the level of service, and whether you choose a one-time treatment or a seasonal plan. Based on local and industry data:

Per-Visit Cost: For a regular seasonal plan, each service visit generally ranges from $50 to $100¹ ¹⁰.
One-Time Treatment: A single application for a special event or initial knockdown may cost between $75 and $200¹¹.
Seasonal Contract: The total average cost for a full season (e.g., 5-7 applications from April to September) often falls between $350 and $550¹ ¹².

It's always best to get a detailed quote from a licensed provider after they assess your specific property.

Comparing Public and Private Mosquito Control

Feature	Public Programs (Washington County/Beaverton)	Private Services (Local Pest Control Companies)
Focus Area	Public lands, wetlands, and floodplains⁶	Individual private yards and properties⁹
Primary Goal	Community-wide public health protection and nuisance reduction	Targeted property protection and personal comfort
Key Methods	Surveillance, larviciding in public standing water, free mosquitofish distribution² ⁴	Barrier sprays, property inspection, targeted larviciding¹ ⁹
Cost to Resident	No direct cost (publicly funded)⁷	Fee per visit or seasonal contract (e.g., $50-$100/visit)¹ ¹⁰

DIY Tips for a Mosquito-Resistant Yard

Partnering with any professional service starts with a property that doesn't invite mosquitoes to breed. You can significantly reduce populations by eliminating standing water weekly:

Empty and Scrub: Bird baths, pet water bowls, plant pot saucers, and children's toys.
Maintain: Clean roof gutters regularly to prevent clogs and pooling water.
Cover or Treat: Use tight-fitting lids on rain barrels, or use mosquito dunks (a type of larvicide) in features that can't be emptied.
Landscape Smartly: Trim overgrown vegetation where adult mosquitoes rest during the day.

Frequently asked questions

Sources

How much does Mosquito Control Cost and What Can I Expect? - https://limbwalkertree.com/blog/how-much-does-mosquito-control-cost-what-expect ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶
Mosquito Prevention - BeavertonOregon.gov - https://www.beavertonoregon.gov/1085/Mosquito-Prevention ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷
Protecting Yourself Against Mosquitos - City of Tualatin - https://www.tualatinoregon.gov/publicworks/protecting-yourself-against-mosquitos ↩
Mosquito Control - Washington County, OR - https://www.washingtoncountyor.gov/environmental-health/mosquito-control ↩ ↩² ↩³
How We Control Mosquitoes - Multnomah County - https://multco.us/info/how-we-control-mosquitoes ↩
Mosquito Prevention - BeavertonOregon.gov - https://www.beavertonoregon.gov/1085/Mosquito-Prevention ↩ ↩²
Mosquito Control | Washington County, OR - https://www.washingtoncountyor.gov/environmental-health/mosquito-control ↩ ↩²
June 2023 - Pat Sutton's Wildlife Garden - https://patsuttonwildlifegarden.com/2023/06/ ↩
Mosquito Program - Spring-Green Lawn Care - https://www.spring-green.com/services/mosquito-program/ ↩ ↩² ↩³
Mosquito Joe vs. Mosquito Squad vs. Green Lawn Fertilizing - https://www.greenlawnfertilizing.com/blog/mosquito-joe-vs.-mosquito-squad-vs.-green-lawn-fertilizing ↩ ↩²
How Much Does Mosquito Treatment Cost in 2026? - LawnStarter - https://www.lawnstarter.com/blog/cost/mosquito-treatment-price/ ↩
Mosquito Treatment Costs Explained: What You Can Expect - https://www.mosquito-authority.com/blog/how-much-is-mosquito-treatment-costs-to-protect-your-yard/ ↩

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