Nov 13, 2013

Aquatic invasive species prevention video for paddlers available

The Northern Forest Canoe Trail (NFCT) links the waterways of New York, Vermont, Québec, New Hampshire and Maine, from Old Forge, NY, to Fort Kent, ME, an historic 740-mile canoe and kayak route of flat water, swift water, and whitewater, on a range of rivers, streams, lakes and ponds.

Aquatic Invasives threaten the evolved integrity of our waters as well as the quality of our recreational paddling experiences. In the past, many thought of aquatic invasive species as a problem more for larger motorized or sailing craft than for smaller paddled craft such as kayaks and canoes. We now know, however, that all watercraft can serve as carriers of these plant and animal invaders. This NFCT video explains how kayakers and canoeists, by following a few basic "Best Practices" can avoid being carriers of aquatic invasive species. 

Click here to view the 10 and 1/2 minute NFCT Clean-Drain-Dry video.

Nov 4, 2013

Cornell Cooperative Extension Invasive Species In-Service

Cornell Cooperative Extension Invasive Species In-Service

Ithaca, NY

THEME: Growing Our Invasive Species Outreach Education Programs

WHEN:  19 – 21 November 2013

WHERE:  School of Industrial and Labor Relations Conference Center, Cornell University, Ithaca, NY

For the past six years, the NY Invasive Species Clearinghouse and the Cornell Cooperative Extension Invasive Species Program have co-sponsored a three-day invasive species in-service education workshop concurrent with the Cornell Agriculture and Food Systems In-Service. This year, as in 2012, the in-service is being held in King-Shaw Hall at the School of Industrial and Labor Relations Conference Center, 140 Garden Avenue on the campus of Cornell University in Ithaca, NY. The workshop is scheduled for Tuesday, November 19th through Thursday, November 21st.

This year’s in-service will continue with some typical scientific workshop 20-30 minute presentations followed by Q&A; most of the in-service, however, is built around suggestions received from Cornell Cooperative Extension educators, PRISMs (Partnership for Regional Invasive Species Management), and other partners stating very clearly that you want to move into the more important “what next?” topics. This year’s in-service contains a number of thematic sessions, some directed more toward CCE Educators, some toward PRISM partners, all of interest (we believe) to both groups (as well as to outside agencies, NGOs, businesses, and others). We are making use of more facilitated and panel discussions to encourage interaction with our expert panelists and among CCE Educator and PRISM partners. General daily themes include:

  • Growing CCE capacity to be an invasive species education partner
  • Invasive species issues of concern
  • Attacking invasive species on regional and local scales

We are also incorporating an after-hours special session (pre-registration with our CCE Invasive Species Program is required in addition to conference registration - this is not listed as part of the CCE In-Service Registration process - there is no additional fee):  Optional Evening Session - Using the NYS Invasive Species Database: Tips and Tricks for Searching the State Dataset, in Addition to Reporting Findings. This session will be limited to 20 participants.

Click here to view the Final agenda (in PDF format).



Cornell’s on-line registration is open until November 8th so don’t waste time, register today!

Attendee registration fees are:

Full 3 day conference - $90

2 day registration - $70

1 day registration - $40



Cornell Affiliated with Cornell netID (pay by Direct Billing or check)

Non-Cornell Affiliated (paying by credit card or check)



Best Western University Inn
Address: 1020 Ellis Hollow Road, Ithaca, NY 14850
Phone: 607-272-6100

Courtyard by Marriott Ithaca -
Address: 29 Thornwood Drive, Ithaca, NY 14850
Phone: 607-330-1000

Other options -

There are many other hotels throughout Ithaca for you to choose from if you prefer not to stay at the Best Western or the Courtyard by Marriott. Learn more at



This year, there is one formal luncheon (see CCE registration site). Although this luncheon is targeted mainly to CCE Agricultural and Food Systems related educators, all in-service registrants are welcome to register. Please note, however, that since many of our invasive species track attendees are not CCE, we will be starting our afternoon session earlier than the purely CCE tracks will be starting back up. Otherwise, lunches are "on-your-own," so grab a few colleagues and head off to one of the nearby university dining facilities including Trillium in Kennedy Hall, The Terrace in the basement of the Statler Hotel, Martha's in MVR and Synapsis in Weill Hall. Coffee and tea will be available throughout the day at the conference location.


If you have any questions, please drop me an e-mail at:

We look forward to seeing you at the in-service!

Oct 31, 2013

Hydrilla verticillata found in lower Croton River

New York, NY

October 19, 2013

Hydrilla verticillata found in lower Croton River

On October 19th, 2013, as part of a New York Botanical Garden (NYBG) project studying plants of the intertidal reaches of the Hudson River, Principal Investigator Rob Nacz, Arthur J. Cronquist, Curator of North American Botany at NYBG, and David Werier, a Botanical and Ecological Consultant working on the project, found a population of Hydrilla verticillata in the tidal section of the Croton River, Westchester Co., New York (map below). The population was not inventoried but the plants are reported as being clearly well established. The population was observed about 0.8 and 1 km upstream from the mouth of the Croton River where it joins the Hudson River south of Croton Point. Many of the individual plants observed were non-rooted plants washed onto the shore; numerous rooted plants were also observed. Vegetative propagules, both above and below the substrate were observed and specimens were collected and returned to the NYBG. The Hydrilla was found in an area that is also populated with numerous rare plants, which will likely make control efforts more difficult than in other areas.

The finding has been tentatively confirmed by the NYS Department of Environmental Conservation; additiional results to determine whether the population is monoecious (a plant having both the male and female reproductive organs in the same individual), or dioecious (plants which produce a male plant and a female plant and not usually a single plant with both male and female parts). Hydrilla's dioecious form is found mainly in the southern U.S.; north of South Carolina Hydrilla is mainly monoecious. The Croton finding is believed to be monoecious. Additional information will be posted here as an update as soon as final determination is made.

An interagency response team was established under the direction of NYS DEC on November 8th. Participating in the early response meeting were representatives from: DEC Central (Albany) Office; DEC Region 3; the Hudson River Esturary Program; DEC's Invasive Species Coordination Unit; DEC's Divisions of Lands & Forests and Water; the NYS Invasive Species Database (iMapInvasives); the NYS Invasive Species Clearinghouse; Cornell Cooperative Extension; the Lower Hudson Partnership for Regional Invasive Species Management; the NYC Department of Environmental Protection; the US Army Corps of Engineers; and the Cayuga Lake Hydrilla Task Force. More information on response planning will be posted on this site in the near future.

For more information, contact:

Wendy Rosenbach (NYSDEC)

Click on map to enlarge.