Mosquitoes

– Hear a high-pitched buzz near your ear at night.
– See tiny bite marks that itch and swell.
– Find wrigglers in birdbaths and clogged gutters.

Source reduction (eliminate standing water), larvicide treatment of remaining water sources, adulticide perimeter spray or misting-system treatment to knockdown resting adults; professional barrier programs.

We remove and treat standing water sources. We spray yard edges with larvicide and barrier mist.

– Empty and refresh birdbaths, pet bowls, and flower pot saucers at least weekly.

– Clean and flush gutters regularly to prevent water accumulation.

– Install or repair window and door screens to keep adults out.

– Apply EPA-registered insect repellent (DEET, picaridin, or IR3535) when outdoors.

– Mow tall grass and trim dense shrubbery where adults rest during the day.

– Empty birdbaths and pet bowls at least weekly.

– Flush gutters after heavy rain and storms.

– Put screens on doors and windows before spring.

Females breed in any standing water — gutters, birdbaths, tree holes, low-lying puddles, and containers holding as little as a bottle cap of water; adults rest in dense vegetation and shaded areas. Only females bite, and they need a blood meal to lay eggs. Most adults stay near where they hatched.

Mosquitoes are common in Portland, near marshes and pools. Summers and warm nights make them worse.