Herbicide Application

PUBLIC NOTICE
Herbicide and Algaecide Treatment in Greenwood Lake – August, 2025

• On Friday, August 22nd, the North Arm and West Arm of the lake will receive a second round of herbicide treatment. There are no swimming restrictions, but we do recommend that you avoid using lake water for watering plants for a short time after treatment. Our shores will also be carefully inspected for algae blooms. Aside from the small bloom in the North Arm earlier this summer — which has since dissipated — no new blooms have been detected.

This work is part of the 2025 Lake Management Program, designed to control invasive and nuisance aquatic plant species and maintain the ecological balance of the lake.

Objective: To reduce and control the spread of invasive aquatic vegetation, specifically:

• Eurasian Watermilfoil (Myriophyllum spicatum)
• Water Chestnut (Trapa natans)
• Fanwort (Cabomba spp.)

Treatment Areas: Designated treatment zones are outlined in the map provided below (attached or posted on the official website).

Treatment Details:

• Date of Application: Fri Aug 22, 2025
• Authorized Contractor:
  • Tigris Aquatic Services, Licensed and registered with the New York State Department of Environmental Conservation (NYSDEC Permit No. 18463)
• Products to be applied:
  • Herbicides:
  • ProcellaCOR EC (florpyrauxifen-benzyl)
  • Clipper (flumioxazin)
  • Algaecide:
  • Cutrine Plus (copper-based)

These products will be applied by certified professionals in accordance with NYSDEC regulations. Necessary permit applications have been submitted to the NYSDEC Bureau of Pesticides, Region 3.

Water Use Restrictions:

Residents and lake users are advised to follow posted signs and observe all water use restrictions where applicable. For more information, please visit the Village of Greenwood Lake website: www.villageofgreenwoodlake.gov

Thank you for your attention and cooperation.
Tom Howley,

Mayor