upcoming treatments
This season we are working to provide a tentative mosquito treatment schedule for public viewing. Please keep in mind that treatment plans can change frequently due to weather, water levels, and other environmental factors. Our goal is to treat each neighborhood equally, as our program is funded through property taxes.
Treatments are prioritized based on severity, which is determined by our trained fog truck drivers who monitor mosquito activity and conditions in the field.
To view the current tentative schedule, follow the link below.
Who are we?
Four Rivers Vector Control District is an Oregon Special District that was formed by petition in 1985. The District was established to monitor and control mosquito populations in order to reduce the risk of mosquito-borne diseases, such as malaria, dengue fever, Zika virus, and West Nile Virus. Four Rivers Vector Control District conducts surveillance to monitor mosquito populations, identify potential breeding sites, and implement control measures such as larviciding, adulticiding, and source reduction to help reduce the number of mosquitos and prevent the spread of diseases.
