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Statewide IPM Program, University of California

Mosquitoes

Adult western malaria mosquito.

Adult western malaria mosquito.

Link to mosquito prevention video.

 Don't let mosquitoes breed in your yard! (2:03)

Link to mosquito bites video.

 Protect yourself from mosquito bites (1:38)

More than 50 species of mosquitoes are found in California. Their habitats range from deserts at or below sea level, to mountain meadows at elevations of 10,000 feet or more.

Many species of California mosquitoes are relatively uncommon and seldom pose a threat to the health or well-being of California residents. However, several species readily attack people, and some species can transmit microbial organisms that cause human diseases such as West Nile Virus, malaria, and encephalitis. The mosquitoes of major concern in California belong to the genera Culex, Aedes, and Anopheles. Other mosquitoes may transmit diseases to livestock or pets.

Mosquitoes are best managed on an areawide basis by public agencies organized specifically for mosquito control. In California, more than 50 mosquito and vector control districts provide this service. For assistance, look under the county government section of your telephone directory for mosquito abatement or vector control.

For the general public

On farms

In wetlands and stormwater systems

En español

More information