Bulletins & Announcements

Aerial Adulticide Treatment in Westpark and Lincoln Crossing Tonight, Sept.9, 7:30-11 p.m.

Planned Aerial Adulticide Treatment

What: Adult mosquito treatment
Where: Westpark and Lincoln Crossing
When: Tonight, September 9, 7:30 – 11 p.m.

Areas of Westpark and Lincoln Crossing are scheduled for an aerial adulticide treatment tonight due to high adult mosquito counts and positive West Nile virus mosquitoes. An EPA-registered mosquito adulticide will be applied in an ultra-low volume fog by aircraft to target adult mosquitoes.

PLEASE NOTE: Due to fires, wind and unstable weather conditions, tonight’s treatment may be rescheduled.

  • Rural and residential areas surrounding Amoruso Way
  • Westpark neighborhood of Roseville west of Fiddyment Road and the agricultural areas to the west to Country Acres Road
  • Rural areas including agricultural fields west of the City of Lincoln, south of the Auburn Ravine to Sunset Blvd West. Includes the Amoruso Way neighborhood

Adult mosquito control treatments are made to prevent the transmission of West Nile virus to people. A number of factors including the aircraft, weather conditions and adult mosquito and disease surveillance information must be considered for a safe and effective application. Due to these factors, the District encourages Placer County residents to check the District website for any changes to the planned treatment schedule and accompanying treatment area maps.

Wind speed and direction is especially important during adult mosquito applications. The District only uses aerial mosquito control contractors who use specialized systems to allow the pilot to measure the wind and fly in a way to deliver the material into the target area. This means that sometimes the aircraft will need to fly upwind of the target area to compensate for the wind.

Click on map below to zoom in on planned treatment areas.