West Umatilla Mosquito Control District
MOSQUITO CONTROL: ADULTICIDING

WUVCD mosquito controlAs the mosquito season progresses, mosquitoes produced mostly agricultural areas move into our towns. As these numbers cross a certain threshold, the District begins its adulticide program. By reducing the numbers of mosquitoes, the odds of being bitten diminish. More importantly, when disease is present, the chances for transmission are lowered.

Adulticiding must be done during a temperature inversion. During the mosquito season, temperature inversions typically occur at dawn and dusk. So fogging is done early in the morning before most people are awake or active outdoors.

WUVCD mosquito controlMosquito activity peaks at both dawn and dusk. Fogging at one of these times allows for the best chance of impacting mosquitoes while decreasing the chances for an exposure in people. When the chances for public exposure are higher, as in town fogging, only the safest materials are considered for use.

The District always makes use of the local newspaper and radio stations to make residents aware of when spray operations will begin. Residents are encouraged to avoid sprays by staying indoors and by keeping doors and windows closed during July, August and September between the hours of 9:00 PM and 6:30 AM.

We would be happy to answer any questions or concerns you may have about this program. Please contact our office Monday thru Friday between the hours of 8 AM and 3 PM.


West Umatilla Mosquito Control District

Dedicated to the Protection of Public Health Through the Reduction of Public Health Vectors