NEW CITY, NY — As mosquito season approaches, the Rockland County Department of Health has launched its annual mosquito control initiative aimed at protecting residents from mosquito-borne illnesses such as West Nile Virus and Eastern Equine Encephalitis (EEE). Beginning on or around May 12, 2025, health officials will begin treating approximately 57,000 catch basins and storm drains across the county. The treatment process is expected to be completed by early June.
“Rockland County has about 57,000 catch basins and storm drains, many of which have the potential to breed mosquitoes,” said Amy Isenberg, Environmental Health Specialist and Mosquito Program Coordinator. “We treat these structures annually to help control the mosquito population and protect the community from diseases mosquitoes can carry.”
The treatment will be conducted by Health Department staff using slow-moving County vehicles, frequently stopping to access catch basins and storm drains. The Department urges drivers and pedestrians to be patient and avoid parking over storm drains during this time to ensure workers can easily perform treatments.
Why Mosquito Control Matters
Mosquitoes lay eggs in standing water, where larvae hatch and develop over a period of 7 to 10 days before emerging as adult mosquitoes capable of biting and transmitting dangerous viruses.
To help reduce mosquito breeding, residents are encouraged to eliminate sources of standing water on their property, such as:
Birdbaths, pet bowls, and plant saucers (change water regularly)
Unused toys, buckets, tarps, wading pools, and wheelbarrows (flip or store when not in use)
Free Mosquito Control Resources Available
To support public participation in mosquito control, the Rockland County Department of Health is offering free mosquito prevention tools to residents:
Mosquito Dunks®
Where: Robert L. Yeager Health Complex, 50 Sanatorium Road, Pomona
How: Must be ordered in advance by calling 845-364-3173 or emailing wnv@co.rockland.ny.us
What: Dunks are donut-shaped tablets that float in standing water and release a natural bacterium that kills mosquito larvae. Suitable for unused swimming pools and spas.
Fathead Minnows Giveaway – One Day Only!
When: Wednesday, May 21, from 4:30 PM to 6:00 PM
Where: Robert L. Yeager Health Complex, Pomona
What: These small fish feed on mosquito larvae and are ideal for use in ornamental ponds, unused pools, or any water body with at least 8 inches of water.
Reserve: Call 845-364-3173 or reserve online.
The annual mosquito treatment program is a proactive step toward keeping Rockland County residents safe and reducing the risk of mosquito-borne illnesses. By combining county-wide efforts with individual homeowner participation, the Health Department aims to make a significant impact on the local mosquito population this summer.
For more information on mosquito prevention or to reserve mosquito control products, call the Rockland County Health Department at 845-364-3173.
