This timeline shows only key steps in an attempt to show the progression of the response. Many other important steps have taken place along the way.
July 5: Sonar Genesis injection unit installed at NYSDEC fish ladder at southern end of Cayuga Inlet in preparation for 2016 treatments
July 22: Sonar treatment begins in Cayuga Inlet. Sonar Genesis injection unit turned on, Sonar H4C pellets applied to pellet treatment zones
August 9-10: Endothall injection treatment in Fall Creek. Sonar H4C treatment begins in backwater areas of Fall Creek. Sonar H4C "bump" treatments conducted in Cayuga Inlet
August 26: Sonar H4C "bump" treatments conducted in Cayuga Inlet and Fall Creek
September 13: New hydrilla infestation discovered in Aurora, NY (adjacent to Wells College)
September 19: Sonar H4C "bump" treatments conducted in Cayuga Inlet and Fall Creek
September 30: All treatments finalized for 2016 season
November 19: End of season public meeting
September 1: Sonar Genesis (liquid) and Sonar One (pellet) application begins in Cayuga Inlet. Sonar One application begins in Fall Creek. Sonar H4C (pellet) application begins in southeast corner of Cayuga Lake (30 acre treatment zone)
November 12: End of season public meeting.
December 2: Cayuga Inlet fluridone water monitoring ended. Results of the Cayuga Inlet Fluridone Monitoring 2013.
June 19: Public meeting
June 26-27: Endothall treatment in Cayuga Inlet
June 26-July 16: Water quality monitoring for endothall concentrations. Results of Endothall Monitoring 2012.
July 12: Fluridone treatment and water quality monitoring for fluridone begins on the inlet
October 31: Fluridone treatment ends on the inlet
November 7: Final day of water quality monitoring of fluridone
November 7 & 8: Public meetings
November 26: Water quality monitoring for fluridone levels completed. Results of 2012 Fluridone Monitoring
Winter 2012: Hydrilla Task Force analyses plant and water quality monitoring data and works on long-term management plan
August 4: Hydrilla first found in Linderman Creek by Jordan Stark, a volunteer on the Floating Classroom
August 19: Representatives from the City of Ithaca, the Cayuga Lake Watershed Network, the Finger Lakes Region of NYS Office of Parks, Recreation, and Historic Preservation, the NYS Department of Environmental Conservation, and NYS Canal Corporation meet. Hydrilla Task Force formed
September 3-5: Hydrilla surveyed and mapped in the Cayuga Inlet.
September 7: Hydrilla Task Force makes formal proposal for herbicide application and applies for permit
September 14: Formal notification to affected landowners of herbicide treatment
September 19: City of Ithaca request for boaters to voluntarily stay out of Cayuga Inlet
September 23: Paddle docks in Cass Park temporarily closed in response to hydrilla discovery
September 24: Public outreach at Rhinerfest. Water related events cancelled due to hydrilla infestation
October 1: Allan H. Treman State Marine Park Boat Launch temporarily closed by State Parks
October 1-2: Outreach volunteers distributed hydrilla information at Applefest
October 4: Public meeting at First Unitarian Church of Ithaca to share information about the proposed control of hydrilla in the Cayuga inlet
October 5-14: Inlet closed for 10 days
October 10: First endothall herbicide treatment in Cayuga Inlet
October 11-26: TCHD and NYDEC designated water quality monitoring of endothall. Results of 2011 endothall monitoring
October 18-November 23: Bolton Point water quality monitoring of endothall. Results of 2011 Bolton Point endothall monitoring
November 7: End of season public meeting
Winter 2011: Hydrilla Task Force researches response options and learns about hydrilla eradication and management experience elsewhere in the US.
Last updated April 17, 2018