Category Archives: Mosquito

Risk Grows as Bird, Mosquitoes Test Positive for West Nile Virus

The Contra Costa Mosquito & Vector Control District is reporting mosquitoes from Oakley and Discovery Bay and two dead birds from Discovery Bay have tested positive for West Nile virus. This is the fifth group of mosquitoes and the third … Continue reading

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Fight The NEW Bite – Stop the Invasion

  Take Action Now to Prevent Invasive Mosquito Species in Contra Costa County Just two counties now stand between Contra Costa County and mosquitoes capable of transmitting Zika, dengue fever, yellow fever and chikungunya viruses. It’s time to Fight the … Continue reading

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Adult Mosquito Fogging Notification for Discovery Bay

Due to the detection of West Nile virus in the area, the Contra Costa Mosquito & Vector Control District will be fogging by truck-mounted, ultra-low volume sprayers to control adult mosquitoes. DATE: Friday, July 20, 2018 TIME: Between dusk (approximately … Continue reading

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West Nile Virus Confirmed in Mosquitoes in Contra Costa County

The Contra Costa Mosquito & Vector Control District reports mosquitoes from two locations in Contra Costa County have tested positive for West Nile virus. The infected mosquitoes were caught in traps in Discovery Bay and an agricultural area east of … Continue reading

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First Sign of West Nile Virus Activity of 2018 in Contra Costa County

The Contra Costa Mosquito & Vector Control District is reporting seven chickens from the District’s sentinel chicken flock on Holland Tract, near Knightsen have tested positive for antibodies against West Nile virus. The District urges county residents to use precautions … Continue reading

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Test your knowledge of Mosquitoes

How Much Do You Know About Invasive Mosquito Species? Click here to take this quick quiz to test your knowledge of mosquitoes. See what you know about Invasive Mosquito Species and how they could impact our quality of life here … Continue reading

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MOSQUITO SEASON HAS BEGUN – Prevent Mosquitoes and Protect Yourself Using the 5 Ds

Warmer weather is here and the start of summer is right around the corner. In other words, it’s mosquito season. That means it’s time to remember the 5 Ds to protect yourself from mosquitoes and reduce the risk of the … Continue reading

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