Health Department to treat for West Nile Virus-carrying mosquitoes in Queens, Staten Island and city wetlands

August 7, 2026 - 23:54

The New York City Health Department has announced a new round of pesticide spraying aimed at reducing the population of mosquitoes that can carry the West Nile Virus. The treatments are scheduled to take place in targeted areas of Queens and Staten Island, along with several city-owned wetlands, over the coming days.

Health officials say the decision is based on recent trap data showing higher-than-usual numbers of the Culex species, which is known to transmit the virus to humans. While no human cases have been reported so far this season, the department is taking proactive steps to lower the risk before the peak mosquito breeding period arrives.

The spraying will be done using truck-mounted equipment in residential neighborhoods, while backpack sprayers and aerial methods will be used in the more remote wetland areas. The pesticide being used is a low-concentration product that is considered safe for people and pets when applied as directed, though the department advises residents to stay indoors during the actual spraying and to keep windows closed for about 30 minutes afterward.

Residents in the affected zones are also urged to remove standing water from their properties, including in flower pots, gutters, and bird baths, as these are prime breeding spots. The Health Department notes that while the spray is effective, it is only a temporary measure, and community cooperation is key to reducing the mosquito population over the long term.

The spraying schedule will be posted on the city's official website, and residents can also call 311 for specific street-level timing. Those with respiratory conditions or concerns about pesticide exposure are advised to consult their healthcare provider. The department will continue to monitor mosquito activity and will announce further treatments if necessary.