Mosquito Control

Washington County Mosquito Control is responsible for managing mosquitoes by an integrated mosquito management (IMM)strategy. Integrated Mosquito Management is a comprehensive mosquito surveillance and control strategy that utilizes available mosquito control methods singly or in combination to reduce their numbers to tolerable levels while maintaining a quality environment.

Key elements to the mosquito control program:

  • Providing public education and outreach in the community.
  • Conducting mosquito surveillance using a variety of field and laboratory methods to monitor mosquito populations and mosquito-borne diseases.
  • Using biological and/or chemical control methods when conditions supporting mosquito production cannot be removed or altered sufficiently
  • Distributes Mosquito Fish (Gambusia affinis) to Washington County residents for use in their ornamental ponds, water troughs and other potential breeding areas.
  • Coordinating surveillance and control efforts                                                  
    with other local, state and federal governmental agencies.


How do I...?

Environmental Health: 503-846-8722

Mosquito Control: 503-846-2904