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Potentially Deadly Mosquito, Aedes aegypti, First Found in Contra Costa County


MARTINEZ, Calif. (KGO) — On Friday, the Contra Costa Mosquito and Vector Control District announced that an invasive mosquito species had been discovered in the town of Martinez.

Measuring about a quarter of an inch, with a black body and white stripes, they are called Aedes aegypti.

According to a county press release, Aedes mosquitoes are described as very aggressive daytime biters that can transmit diseases such as Zika, yellow and dengue fever.

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Often found in vegetation and places with standing water, mosquitoes are not native to California and are generally found in warmer climates.

Contra Costa County officials now say it has been identified they will work to try to prevent the new insect from establishing locally.

A job that Tammy Morales and her mother Victoria say they cautiously hope local authorities can do.

They tell ABC7 News that for years the county has taken several steps to help residents deal with mosquitoes and other pests.

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“They give you hanging stuff that you can put around the perimeter. They leave standing water instructions, you know, for lava eggs. But they’ll also come and treat your garden. So if you have a big problem with the mosquitoes, they come out and spray,” Morales said.

In the meantime, Contra Costa County is asking residents to be cautious and report any daytime biting mosquitoes.

A task that some say they will be aware of in the days and weeks to come.

“I’m actually going to buy some OFF before I get home tonight,” Martinez resident Jason Haggard said.

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