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BK is Getting Sprayed with Pesticides Sept. 19, to Lower West Nile Virus Risk 

Trucks will spray pesticide in parts of Borough Park, Flatbush, Greenwood Heights, Gowanus, Kensington, Park Slope, Prospect Lefferts Gardens, Prospect Park South, South Slope, Sunset Park and Windsor Terrace on Tuesday, Sept. 19.

The New York City Health Department will be conducting an adulticide mosquito treatment in Brooklyn. To reduce mosquito activity and the risk of West Nile virus, trucks will spray pesticides in sections of Brooklyn beginning on Tuesday, September 19, 2023 between the hours of 8:30 p.m. and 6:00 a.m. the following morning.

The Health Department will be using very low concentrations of Anvil 10+10, Duet or MERUS 3.0. 

The risks of pesticides applied by the Health Department for mosquito control are low to both people and pets. Some people who are sensitive to spray ingredients may experience short-term eye or throat irritation or a rash. People with respiratory conditions may also be temporarily affected.

In case of bad weather, the application will be delayed until Wednesday, Sept. 20, 2023.

In order to stay safe during spraying, the Health Department recommends residents to stay indoors, whenever possible. Air conditioners can remain on. While unnecessary, residents may wish to close air conditioner vents, or choose the recirculate function.

After spraying, residents are encouraged to wash skin and clothing exposed to pesticides with soap and water. Residents are also encouraged to wash fruits and vegetables with water.

The most effective way to control mosquitoes is to eliminate any standing water. New Yorkers are encouraged to mosquito-proof their homes and take precautions when spending time outdoors. These measures can include the use an approved insect repellent containing DEET, picaridin, oil of lemon eucalyptus, or products that contain the active ingredient IR3535. Residents should make sure their windows have screens and repair or replace screens that have tears or holes.

New Yorkers are encouraged to eliminate any standing water from their property and dispose of containers that can collect water. Residents should ensure roof gutters are clean and draining properly. Swimming pools, outdoor saunas and hot tubs should be cleaned and chlorinated. Pools should be kept empty or covered if not in use. Water that collects in pool covers must be drained. 

Locations of truck spraying in Brooklyn for Tuesday, September 19, 2023




Zip Codes


Parts of Borough Park, Flatbush, Greenwood Heights, Gowanus, Kensington, Park Slope, Prospect Lefferts Gardens, Prospect Park South, South Slope, Sunset Park, and Windsor Terrace.

Bordered by 4 Avenue to the West; Union Street, Eastern Parkway, Washington Avenue, Lincoln Road, New York Avenue to the North; Albany Avenue, Synder Avenue, Schenectady Avenue to the East; and, Cortelyou Road, Flatbush Avenue, Beverly Road, East 3 Street, 18 Avenue, 45 Street, 14 Avenue, 37 Street, 9 Avenue, 52 Street, 6 Avenue, 44 Street to the South.

Parts of 11203, 11204, 11215, 11218, 11219, 11220, 11225, 11226, 11232, and 11238.