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Why is Adult Mosquito Control Necessary?

The District’s aggressive campaign against mosquito larvae is intended to minimize the need to use adulticides, but it is not always possible to prevent all adult mosquitoes from emerging. When adult mosquitoes infected with West Nile virus are found in an area, adult mosquito control treatments are used to quickly minimize the threat to human health.

Adult mosquito control is always done in conjunction with intensified efforts to locate and reduce mosquito breeding sites so that more adult mosquitoes cannot emerge.


Page last reviewed: July 14, 2021

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