Parts of Roseville and western Placer are scheduled for treatment for high mosquito numbers and a sharp increase in West Nile virus activity. An EPA-registered mosquito adulticide will be applied in an Ultra-low Volume (ULV) fog by aircraft in an effort to address increased mosquito populations and West Nile virus activity.
Treatment areas (Click on the map to enlarge):
- Agricultural areas within the area south of Philip Road to Baseline Road, Locust Road west to the western edge of Roseville
- Residential areas in Roseville, west of Fiddyment
- Elverta area, Jackson Rd on the North to Sacramento County line on the south. Pleasant Grove Rd on the west to Brewer Rd on east
Since several factors affect treatment activities, such as weather and wind conditions, the District encourages Placer residents to check this website regularly for any changes to the treatment schedule. For an overview of our mosquito control programs, you may view the District video.