Bulletins & Announcements

Larval Mosquito Treatments in western Placer County 7/22/2013 and 7/23/2013

The agricultural areas of western Placer County are scheduled for treatment for larval mosquito populations.  Treatment will occur during the daylight hours. An EPA-approved mosquito larvicide will be applied to prevent the emergence of adult mosquitoes and reduce the risk of mosquito-transmitted diseases.

Treatment area:

  • Western Placer County – Target areas for applications are exclusively agricultural (rice) fields.   Low flying aircraft will be applying a granular material to the water in irrigated fields to target immature mosquitoes. See map here.

Since several factors affect treatment activities, such as weather and wind conditions, the District encourages Placer residents to check this website regularly for any changes to the spraying schedule.  For an overview of our mosquito control programs, you may view the District video.