To curb mosquito activity and lower the risk of West Nile virus, the city will carry out overnight pesticide spraying in Brooklyn and Queens this week.
Spraying is scheduled to begin Wednesday, Sept. 24, from 8:30pm to 6:00am, the following morning, weather permitting. If conditions don’t allow, the operation will be postponed to Thursday, Sept. 25, during the same hours.
Trucks will move through parts of Cypress Hills, East New York, New Lots, Starrett City and The Hole, covering sections along Hendrix Creek, Schenck Avenue, Linden Boulevard, Fountain Avenue, Pitkin Avenue, Forbell Street and Atlantic Avenue. Spraying will also extend into nearby Queens neighborhoods, including Howard Beach, Ozone Park, Richmond Hill and Woodhaven.
The department will apply low concentrations of Anvil, Duet or MERUS 3. Officials say risks to people and pets are minimal, though those with asthma or chemical sensitivities may experience temporary irritation.
Residents are encouraged to limit outdoor activity while spraying is underway. Air conditioners can stay on, but vents may be closed or set to recirculate if preferred. Afterward, wash skin and clothing exposed to spray, and rinse fruits and vegetables before eating.
The city is also urging residents to do their part to cut down mosquito breeding grounds:
- Use approved insect repellents with DEET, picaridin, oil of lemon eucalyptus (not for children under 3) or IR3535.
- Install or repair window screens.
- Remove standing water from yards, buckets, planters and gutters.
- Clean and cover pools, hot tubs and saunas if not in use.
Standing water is a violation of the city’s Health Code and can be reported by calling 311 or visiting nyc.gov/health/wnv.
For more details on spraying locations and West Nile virus updates, call 311 or visit the city Health Department’s website.

