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Posted on: October 6, 2022

Mosquito abatement a concern, residents, county can help

Aedes Mosquito Dark bug with white stripes

Three invasive Aedes mosquitos that are not native to California have been detected in San Diego. Coronado residents may have noticed more bites. The Aedes can transmit the viruses that cause Zika, dengue, chikungunya, and yellow fever. However, there have been no recent cases of these viruses being transmitted locally in California. 

All are small black mosquitoes with white stripes on the legs and back. They bite aggressively during the day, especially around the legs and ankles. They lay their eggs in small containers of water and will readily breed in backyards and even inside homes. In warmer months, these mosquitoes can go from egg to adult in less than one week. 

The County’s Vector Control Program is the appropriate agency for mosquito abatement. Invasive Aedes mosquitoes are “container breeders” meaning that they prefer to lay their eggs in small containers of water. Their eggs can even survive for over a year in dry containers, and will hatch when water is added. Aedes mosquitoes do not fly far; their breeding source is likely to be close by, either around your home or on a neighboring property. 

To prevent mosquito breeding, check for and dump out standing water inside and outside at least once a week. Put screens on windows and doors as screens can prevent Aedes mosquitoes from living and breeding indoors. Wear long sleeves and pants. They are aggressive biters indoors and outdoors, especially during the day. Find the right insect repellent for you and your family. 

To report persistent issues, request an inspection, or for questions and advice, contact the Vector Control Program at (858) 694-2888 or [email protected].


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