Treatment Updates

As part of our Vector-borne Disease Management Plan we may implement ultra low volume treatments by ground or air in areas where vector populations are unusually high or where disease has been detected.

Subscribe to our email updates and you will receive emails about mosquito treatments in your area. We will update those who sign up as soon as we know treatment is scheduled although we may not be able to notify the public if immediate applications are needed. We may cancel scheduled operations due to weather conditions or other unforeseen reasons. You can also follow us on Facebook, Twitter, Instagram or Nextdoor for other District updates.

  • Treatment Updates – Sign-up Form

Planned Ground-based Adulticide Treatments What: Adult mosquito treatment Where: West Roseville When: Tomorrow morning, August 22, 2020 4-5:30 a.m. Areas of West Roseville are scheduled for a ground-based adulticide treatment due to high adult mosquito counts and positive West Nile … Continue reading

Planned Ground-based Adulticide Treatments What: Adult mosquito treatment Where: West Roseville When: Tonight and tomorrow morning Areas of West Roseville are scheduled for a ground-based adulticide treatments due to high adult mosquito counts and positive West Nile virus mosquitoes in … Continue reading

Planned Aerial Larvicide Treatment What: Larval mosquito treatment Where: Western Placer County agricultural areas When: August 24, 25 and 26 PLEASE NOTE: Due to fires, high winds and unstable weather conditions, this treatment may be rescheduled. The agricultural areas, rice … Continue reading

Planned Ground-based Adulticide Treatment What: Adult mosquito treatment Where: Lincoln When: August 20, 2020, 4-5:30 a.m. Residential areas of the Neighbor Lane area of Lincoln is scheduled for a ground-based adulticide treatment due to high adult mosquito counts and positive … Continue reading

*Due to wildfire smoke and unpredictable wind conditions, we were unable to safely conduct the planned aerial adulticide treatment last night. We are shifting to ground-based treatments although ground-based treatments do not allow us to treat as many areas as aerial … Continue reading

On August 17, 2020, our neighboring county reported that a resident in South Lake Tahoe tested positive for plague. We are encouraging visitors and residents of the Tahoe Basin area to be aware of the potential risk of rodent-borne disease … Continue reading

Planned Aerial Larvicide Treatment What: Larval mosquito treatment Where: Western Placer County agricultural areas When: August 17, 18 & 19 The agricultural areas, rice fields and marshes, of western Placer County are scheduled for a aerial larvicide treatment. Larval treatments … Continue reading