Homepage Photo of Placer Mosquito Employees with mountains in background
Homepage Photo of Placer Mosquito Employees with mountains in background
Homepage Photo of Placer Mosquito Employees with mountains in background
Record WNV Detections
First Human Case of West Nile Virus Detected in Roseville.

Placer Mosquito urges residents to use EPA-registered repellent.

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Invasive Detections
Invasive Aedes mosquitoes detected in Roseville.

The District is implementing its invasive Aedes response plan.

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Mosquitofish Program
Learn about our mosquitofish program.

We use mosquitofish as a preventative biological control agent to reduce larvae from water sources.

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Most Recent Board Meeting Agenda

Most Recent Board Meeting Agenda

View Prevention Information

Prevention Information

Report a Problem

Report a Problem

Visit the Placer Learning Lab

We effectively and efficiently manage risks from vector-borne disease to protect public health and quality of life in Placer County.

Map of district areas