Category Archives: West Nile

Be A West Nile Watcher

Reduce the Risk of West Nile Virus–Be on the Lookout for Mosquitoes and Dead Birds   First come the hot days of summer, then the warm summer nights soon follow–and those warm nights actually increase the risk of West Nile virus … Continue reading

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Report Dead Birds to help Prevent West Nile Virus

The Dead Bird Hotline is Now Open for 2019 Dead birds are often the first sign of West Nile virus in Contra Costa County. That is why the District needs your help. If you see a dead bird on your … Continue reading

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14 Things to know About TICKS

Test your knowledge about ticks Ticks surpass all of the arthropods in the number and variety of diseases they can transmit to domestic animals. Only mosquitoes transmit more diseases to humans. Ticks are small arachnids. Although they’re commonly mistaken as … Continue reading

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Should I Worry About Mosquitoes in the Wintertime?

Mosquitoes are a year-round problem in Contra Costa County. Per Steve Schutz, Ph.D., scientific program manager and entomologist, “In the Bay Area we do see some level of mosquito activity year-round, and there are a few species that are primarily … Continue reading

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Rain Barrels, Gutters & Mosquitoes

With the recent rains, residents have been asking us about standing water and mosquitoes. A couple of common questions are, “Is it still mosquito season?” and, “Is there anything we need to do with the rainwater that’s filling our house … Continue reading

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Which Negelected Swimming Pool Can Produce More Mosquitoes?

A neglected swimming pool is only partially filled with water while another is completely full. Which one produces more mosquitoes? If you guessed the pool with more water produces more mosquitoes, you’d be in the majority.  Let’s be clear: both … Continue reading

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Should I Build a Bat House to Help Control Mosquitoes?

Bats eat mosquitoes, right? We do not recommend nor advise using bat houses and bats for mosquito control. Most importantly, bats can transmit rabies to people and animals. In California in 2015, 86 percent (198) of rabies cases were in … Continue reading

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