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Posted on: October 10, 2018

Invasive Mosquito Detected throughout Orange County


The Orange County Mosquito and Vector Control District (OCMVCD) has detected the invasive Aedes mosquito throughout Orange County, including portions of Yorba Linda. There are three species of Aedes mosquitos, which have been detected in Orange County, each of which poses its own risks:

  • Aedes aegypti, also known as Yellow Fever Mosquito;
  • Aedes albopictus, also known as the Asian Tiger Mosquito; and
  • Aedes notoscriptus, also known as the Australian Backyard Mosquito.

Each of these mosquitoes are known to be aggressive daytime-biters and all are similar in appearance. The Yellow Fever Mosquito and the Asian Tiger Mosquito both have the ability to transmit Zika, Dengue fever, and Chikungya to humans, while the Australian Backyard Mosquito can transmit Dog Heartworm to dogs and cats.

The most effective way to prevent the transmission of mosquito-borne illnesses is to prevent mosquitoes from breeding in our yards and homes. Mosquitos reproduce by laying their eggs along the waterline of any water-holding container such as flower vases, plant saucers, buckets, used tires, or even plants that can hold water like bamboo or bromeliads. Residents are encouraged to inspect their yards and homes for mosquitos and report black and white daytime-biting mosquitoes to OCMVCD by calling 714-971-2421. For more information and additional prevention tips, view the Invasive Mosquito Fact Sheet .

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