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Aerial Mosquito Larvicide - Rescheduled


Last updated 4/28/2016 at 8:32am

Due to unfavorable weather conditions forecast for today, the County of San Diego Vector Control Program (VCP) has rescheduled its first aerial mosquito larvicide application. The application, to be carried out over large bodies of water, is re-scheduled to Wednesday, May 4.

A helicopter will apply larvicide to reduce mosquito populations and reduce the risk of West Nile virus (WNV) transmission. The larvicide is made of naturally occurring bacteria which target mosquito larvae in the water and is not toxic to people, pets, fish or other insects. This reduces the number of mosquitoes that can spread diseases such as West Nile virus. VCP staff will be at the locations during the application to answer questions and monitor progress.

Additional larvicide applications will be conducted at three to four week intervals or as needed through the end of the mosquito season which is approximately October. Mosquito populations are monitored and tested for the presence of West Nile virus and other mosquito-borne diseases throughout the county.

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