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Hydrilla in the Croton River

June 21, 2016

New York State Department of Environmental Conservation, New York City Department of Environmental Protection, and Cornell Cooperative Extension-Westchester County invite you to attend an informational meeting on the control and management of the invasive aquatic plant Hydrilla in the Croton River.


When: Tuesday, June 28, 2016, at 6:30 – 8:45 PM

Where: 2nd-floor meeting room, Village of Croton Stanley H. Kellerhouse Municipal Building, Croton-on-Hudson, NY 10520



  • Background information about Hydrilla and updates on Hydrilla in the Croton River
  • How Hydrilla has been managed in other New York Locations
  • Negative impacts and control costs in other states
  • Current efforts to control and manage Hydrilla in the Croton River


The aquatic invasive plant Hydrilla verticillata was discovered in the Croton River in October 2013 and later found in Croton Bay during a site survey in 2014.~ This survey also revealed that Hydrilla is well-established in the Croton River and Reservoir.~ Hydrilla grows and spreads rapidly in areas where it has become established, often resulting in considerable economic and ecological impacts.~ While Hydrilla remains in the Croton River and the Croton Bay, it threatens habitats in the Hudson River and its tributaries.~ Fortunately, the results of the survey conducted in 2015 indicate that Hydrilla has not yet spread outside of the Croton River.~ Come learn about current efforts by the NYSDEC to contain, control, and combat Hydrilla in Croton River habitats.~


Additional information about the project can be found on the NYSDEC website at the following address:

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