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

Our offices will be closed on November 12, 2018 in observance of the Veteran’s Day holiday. We will resume regular business hours on November 13, 2018. If you would like to report a vector control issue, please visit our online … Continue reading

Areas of 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 high mosquito abundance and sustained West Nile virus activity. Treatment areas … Continue reading

The wetlands and agricultural areas of western Placer County are scheduled for treatment for larval mosquito populations. Larval treatments involve an EPA-registered biorational* mosquito larvicide applied by a low-flying aircraft in an effort to prevent the emergence of adult mosquitoes … Continue reading

Areas of Lincoln 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 high mosquito numbers and West Nile virus activity. Treatment area (click for larger … Continue reading

Areas of 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 high mosquito abundance and sustained West Nile virus activity. … Continue reading

Our offices will be closed on September 3, 2018 in observance of the Labor Day holiday. We will resume regular business hours on September 4, 2018.

Areas of Roseville, Lincoln, 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 high mosquito numbers and West Nile virus activity. … Continue reading