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Invasive Aedes aegypti Mosquitoes Have Been Detected Again in the County

For more information on this invasive mosquito visit our Aedes aegypti informational page. For scheduled treatments regarding this mosquito, visit Wide Area Larvicide Spraying page.

 

2020 - Press Releases

Positive Tests Confirm West Nile Virus Mosquitoes in Part of Los Altos Hills - Media Advisory - 8/13/2020

Positive Tests Confirm West Nile Virus Mosquitoes in Part of Santa Clara - Media Advisory - 6/23/2020​

Aerial Treatment of Bay Marshes to Reduce Population of Summer Salt Marsh Mosquitoes - Advisory - 6/20/2020

Aerial Treatment in Alviso Sewage Lagoons to Reduce Breeding of Mosquitoes Potentially Carrying West Nile Virus - Advisory - 6/14/2020​

Positive Test Confirm West Nile Virus Mosquitoes in Part of Milpitas - Media Advisory - 6/11/2020​

Annual Aerial Treatment of Bay Marshes to Reduce Population of Nuisance Mosquitoes- Media Advisory - 3/26/2020​

Annual Aerial Treatment of Bay Marshes to Reduce Population of Nuisance Mosquitoes - Media Advisory - 2/12/2020