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














We have not yet detected West Nile Virus in Placer County, and continue to do larval mosquito control treatments to reduce the number of biting adult mosquitoes later in the summer.  Please check your property for standing water and wear … Continue reading

The portions of the 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 … Continue reading

Our offices will be closed on Thursday, July 4, 2019 in observance of the Independence Day Holiday. We will resume regular business hours on July 5, 2019.   To report a vector issue, please click here: Report a Problem

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

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

Our offices will be closed on Monday, May 27, 2019 in observance of the Memorial Day holiday. We will resume regular business hours on May 28, 2019.   To report a vector issue, please click here: Report a Problem

Our offices will be closed on Monday, February 18, 2019 in observance of the Presidents Day holiday. We will resume regular business hours on February 19, 2019. To report a vector issue, please click here: Report a Problem