From the Sacramento Bee
September 30, 2020
The dog days of summer have waned in the Sacramento region, but the dreaded yellow-fever mosquito apparently is still finding places to breed here.
The Sacramento-Yolo Mosquito and Vector Control District reported Tuesday that it had found an adult female aedis aegypti in a new area of Yolo County: a trap at Pioneer Park near El Macero in Davis. On Sept. 15, the same species of mosquito was also found in Winters.
Yellow-fever mosquitoes carry not only the disease for which they are named but also Zika virus, dengue fever and chikungunya. There are no documented cases of mosquitoes transmitting these three illnesses in California.