The Health Department monitors mosquito populations and applies pesticides during the summer. These methods reduce the number of mosquitoes and lessen the risk of mosquito-borne diseases, such as West Nile Virus.
Residents are required to eliminate standing water (PDF) from their property to help prevent mosquitoes from breeding.
The Health Department uses two methods of pesticide application:
The Health Department follows City, State and Federal laws when applying pesticides. We do not accept requests for pesticide application.
Completed Events in 2023
When used correctly, pesticides pose no significant health risks to people or their pets. No reported diseases in people or pets have been linked with the use of pesticides in West Nile virus control efforts since 1999.
People who are sensitive to spray ingredients may get a rash or have short-term eye or throat irritation. If you have a stronger reaction to pesticides, call the NYC Poison Control Center at 212-POISONS (212-764-7667).
If you are sensitive to pesticides or otherwise want to avoid exposure:
Pesticides Used in 2023
The Health Department is using the below pesticide products during the 2022 mosquito season.
The Health Department alerts the public of a pesticide application at least 24 hours before the event. The City gives out fact sheets to community organizations and elected officials.