Second lethal Aedes aegypti mosquito present in Yolo County – Every day Democrat


The Sacramento-Yolo Mosquito and Vector Control District announced Tuesday afternoon that it had discovered the invasive mosquito, Aedes aegypti, in a new area of ​​Yolo County.

An adult female mosquito was found in a trap in Pioneer Park near El Macero in Davis. Invasive mosquitoes were first discovered in Davis.

However, it is the second time the species has been found in Yolo County. The first discovery came on September 15th when it was found in winter.

The mosquito can infect a person with the Zika virus, including dengue fever and chikungunya, among other things.

The most recent discovery was made by a lab technician who was performing routine surveillance for West Nile virus in the area, according to district officials.

“When we spotted invasive mosquitoes this winter this season, we knew the potential for spotting them in other areas was very likely,” said Gary Goodman, district manager, in a press release. “We are mobilizing staff and district resources to find additional areas for mosquitoes to breed and limit their expansion.”

For the past two weeks, field technicians have been conducting door-to-door inspections in Winters looking for potential sources of mosquito breeding. They spoke with residents about how they can help get rid of mosquitoes on their property and provided appropriate treatments if necessary.

The district has also expanded its spraying regime to include downtown Winters.

“Unfortunately, invasive mosquito infestations are very common in winter,” added Goodman. “We will continue to work hard and do our best to reduce mosquitoes and protect all residents.”

Aedes aegypti are small, dark mosquitoes that lay eggs over water in small containers like flower pots, pet dishes, bird baths, tin cans, tires, and other containers as small as a bottle cap and often found in backyards. All residents are encouraged to inspect their yards daily and drain all standing water sources.

The Aedes aegypti mosquito is not native to California. It’s an aggressive mosquito that prefers to bite people during the day and has the potential to transmit deadly viruses. These mosquitoes are now persistent throughout the state and were recently found for the first time in Sutter and Shasta counties.

Neighboring San Joaquin County first spotted these mosquitoes last year and found them again last July.

Residents who have mosquito bites during the day should report them immediately by calling 1-800-429-1022 or at

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