Bulletins & Announcements

Aerial adult mosquito treatment in Roseville, Lincoln, and western Placer agricultural areas August 6, 2018 8:00-11:30 PM

Areas of Lincoln, Roseville, and western Placer County are scheduled for treatment. 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 elevated West Nile virus activity.

Treatment areas (click for larger image):


  • Residential areas of western Roseville, west of Fiddyment Road and south of Kaseberg Creek, down to the southern border of the residential neighborhood.
  • Agricultural areas adjacent to the West Park residential neighborhood, all the way west to Country Acres Lane, south of Phillip Road to the border of the rice fields, just north of Baseline Road.


  • Residential areas east of Aviation Blvd/Nelson Lane to Lincoln Blvd/Old Hwy 65, bordered by 5th Street on the south.

Unincorporated Placer:

  • Agricultural areas between E. Catlett Rd. and Moore Rd., from Canal Rd west to the Placer County border

Note: Depending on weather conditions, the pilot may have to perform an “offset treatment”. ┬áThis means that residents may see the plane flying outside of the designated treatment area in order to compensate for wind speed and direction and to ensure that our public health materials are reaching the intended area scheduled for the treatment.