Hosted by The Nature Conservancy’s Invasive Species Council (TNC ISAC-North America Region), this webinar discussed current thinking on reducing xenophobia, bias, militarism, racism, and exclusionary concepts from the outreach, education, and management messages surrounding invasive species.

Presented by:

  • Leigh Greenwood and Nancy Olmstead with The Nature Conservancy 
  • Facilitated by Rob Willimas with TNC/SLELO PRISM

The elm zigzag sawfly has recently been discovered for the first time in New York State in St. Lawrence County. Three dead specimens were confirmed at Wildland in Brasher Falls in St. Lawrence County. Feeding patterns, characteristic of the elm zigzag sawfly, have also been reported at three locations in St. Lawrence County, the Brasher State Forest, Wilson Hill WMA, and the St. Lawrence State Park. This webinar will provide an overview of the elm zigzag sawfly, survey efforts that have occurred, and next steps including an early detection effort in which partners and community members can join.


  • Thom Allgaier- Invasive Species Coordinator with NYS AGM
  • Jessica Cancelliere- Research Specialist with NYS DEC Megan Pistolese-Shaw- SLELO PRISM
  • Special Guest- Veronique Martel-Research Scientist in Entomology-Canadian Forest Service

A special eDNA project has been occurring in connected waters of the St. Lawrence Eastern Lake Ontario and the Adirondack region. This project is a collaboration between SLELO PRISM and APIPP PRISM. The results from this project will help to improve our understanding of aquatic invasive species distribution and enhance our aquatic early detection work. This webinar provides an overview of the project and the progress that has been made over the summer field season as lab results for collected water samples will be trickling in over the next several weeks.

Presented by: 

  • Brittney Rogers- SLELO PRISM
  • Gabriel Yerdon- SLLEO PRISM
  • Brian Greene- APIPP PRISM
  • Rob Williams-SLELO PRISM
  • Megan Pistolese- SLELO PRISM

Many invasive plants were once considered desirable ornamentals that were intentionally introduced to gardens and landscapes only to escape into our natural environments. You can play a vital role in the introduction and the prevention of invasive plants by choosing to grow native species and taking action to control invasives you may find on your property. This presentation will provide an overview of native alternatives to common invasive garden plants, the benefits of native plants, and ways to get involved.

Presented by Megan Pistolese-Shaw with SLELO PRISM and Cecilia Pershyn Western NY PRISM.

This webinar is part of the New York Invasive Species Awareness Week (NYISAW) webinar series. Visit www.nyis.info/nyisaw/to learn of other webinars in this series

Hosted by the Eastern Lake Ontario Swallow-wort Collaborative on March 23rd, 2022. This webinar showcased swallow-wort biocontrol research that is currently underway in New York state and beyond.
Researchers from New York, Rhode Island, and Michigan provided an overview of their research, along with the results of an ongoing Hypena opulenta cage monitoring project that SLELO PRISM participates in.
  • Dr. Lisa Tewksbury- University of Rhode Island Biocontrol Lab
  • Dr. Marianna Szucs- Michigan State University
  • Robert Smith-SLELO PRISM
  • Dr. Dylan Parry- SUNY ESF

This webinar provides a brief overview of the Aquatic Restoration Initiative (ARI). Including, details for each phase of the initiative, along with restoration that has taken place and goals for restoring critical riparian corridors. 


Brittney Rogers- SLELO PRISM Aquatic Restoration and Resiliency Coordinator


The Black River Trail is a 3.5-mile nature trail that follows the Black River beginning in Watertown and ending in the Village of Black River. There are many invasive species present along the trail that compromise native vegetation and the overall health of the ecosystem. To learn where the biggest invasive species problems were located, a feasibility survey was conducted in 2020-2021 by the St. Lawrence-Eastern Lake Ontario Partnership for Regional Invasive Species Management (SLELO PRISM) Early Detection Team, in collaboration with the Office of Parks Recreation and Historic Preservation (OPRHP). This webinar will provide an overview of the strategic approach to and results of the study.


Brittney Rogers- SLELO PRISM Aquatic Restoration and Resiliency Coordinator

Robert Smith-SLELO PRISM Terrestrial Restoration and Resiliency Coordinator

This discussion provides a bird’s-eye view of the Indian River Lakes watershed and explores funding sources and invasive species management permit needs, along with an overview of aquatic invasive species that may be invading your dock or shoreline and what steps you need to take to help manage them.

Presented by: 

Brittney Rogers– SLELO PRISM 

Sarah Trick-IRLC

Emily Sheridan– NYSDEC

Jessica Hart-NYSDEC

The Emerald Ash Borer (EAB) is an invasive insect that is killing ash trees in Jefferson County and other areas of Northern New York. For trees affected, near 100% mortality occurs within two to four years. In New York State, ash trees comprise roughly 7 to 25% of forests and is commonly used for landscaping. Whether you own or manage ash trees in an urban landscape or in a forest setting EAB will impact you. This webinar will provide you with research-based information on how to manage emerald ash borer and maintain the health of your urban forests in the path of this invasive pest.

Presented by:
Sue Gwise– CCE Jefferson County Horticulturalist and Master Gardener Coordinator
Michael DeMarco-Watertown City Planner and ISA Certified Arborist
Glen Roberts– NYS DEC Forester
Robert Smith– SLELO PRISM Terrestrial Restoration and Resiliency Coordinator
Herb Frost- Arborcare Tree Service

The Hemlock Initiative has developed a decision guidance tool that generates a ranking system to help forest owners & conservation managers prioritize their hemlock stands to make an informed decision on where to focus their hemlock conservation efforts.This webinar demonstrates how to use the Hemlock Initiative’s Prioritization tool to conserve your hemlock forests. Partners who have used this tool to prioritize their hemlock stands will share their experience, and there will be an open discussion for regional and state-wide organizations to share what they are doing now to manage or prepare for hemlock woolly adelgid


Carri Marschner– NYSHI Invasive Species Extension Associate 

Nathan Hayes- Director of the Cumming Nature Center

Anne Rhoads- Ph.D. Executive Director Edmund Niles
Huyck Preserve, Inc. and Biological Research Station

Bryan Ellis- Senior Forester: Division of Lands and Forests | Invasive Species & Ecosystem Health

Robert Smith- SLELO PRISM Terrestrial Restoration and Resiliency Coordinator  

In our highly urbanized world, our yards often provide vital habitats for pollinators and native wildlife. Our yards also may be a pathway in which invasive plants may escape into our natural environments. You can support pollinators and wildlife and protect natural areas by choosing to grow native plants in your yard.

This webinar discusses the power of native plants, alternatives to exotic and invasive plants, some invasive species to keep an eye out for. Nature-based community science opportunities that you can participate in right from your own backyard will also be shared.


Megan Pistolese- SLELO PRISM

Sue Gwise- CCE Jefferson 

Hemlock woolly adelgid is an invasive forest pest that is killing hemlock trees.  Hemlocks are a foundation species that benefit people and nature. Loss of hemlock trees will significantly impact our forests.

This webinar provides an overview of the importance of hemlock trees, how to recognize and report signs of infestation, and how you can help by taking a hike.


Megan Pistolese- SLELO PRISM

Wylie Huffman- IRLC


The spotted lanternfly (SLF) is an invasive pest from Asia that feeds on a variety of plants including grapes, hops, and maple trees, posing a severe threat to NYS forests and agriculture. SLF’s preferred host plant, tree-of-heaven (TOH), is already found in much of the state. SLF was first found in PA in 2014, and several populations have since been found in NY. Agencies and conservation partners across the state are working to protect our state resources from these invasives.

This webinar covers the current status of SLF and TOH in NY, potential impacts on the North Country, how to identify these species, and reporting observations to iMapInvasives, as well as a state-wide early detection survey effort that volunteers and professionals can get involved in.


Megan Pistolese- SLELO PRISM

The work that goes into managing invasive species often focuses on the treatment or removal of invasive plants and animals. But our work goes beyond the total number of acres treated or pounds of invasive plants removed; our work aims to protect the lands and waters in which we all depend on. 

This webinar showcases the unique landscapes and ecological communities that make the St. Lawrence Eastern Lake Ontario or SLELO region so special and the work that SLELO PRISM and our partners do to protect our lands and waters from the impacts of invasive species.


Rob Williams- SLELO PRISM Manager

Steve Young- Chief Botanist NYNHP

Hemlocks are a foundation species, meaning they often create the habitat in which they exist in. Hemlock woolly adelgid is an invasive forest pest that is killing hemlock trees in New York state and along the Eastcoast. 

This webinar provides an overview of hemlock wolly adelgid, and hemlock tree ecology. A live demo of the iMap Invasives mobile app is also provided along with an overview of how volunteers can help protect hemlock trees. 


Megan Pistolese- SLELO E/O Coordiantor 

Caroline Marschner- NY Hemlock Initiative 

Frank Williams- Conservation Volunteer

Urban forests provide immense beauty for our cities and many benefits for people and nature. Invasive tree pests and climate change threaten the health of our urban forests. This webinar focuses on a step by step approach that municipal leaders can take to make their urban forests more sustainable in the wake of invasive pests and climate change. An overview of the SLELO PRISM Urban Forest Sustainability Initiative and available resources are provided.


Robert Smith- SLELO PRISM

Megan Pistolese- SLELO PRISM

Rob Williams                              rwilliams@tnc.org                     Program Director

Megan Pistolese megan.pistolese@tnc.org
Outreach and Education

Brittney Rogers brittney.rogers@tnc.org 
Aquatic Invasive Species

Robert Smith       robert.l.smith@tnc.org 
Terrestrial Invasive Species

Zachary Simek    zachary.simek@TNC.ORG     Conservation and GIS Analyst

During this time the best way to contact our team is via email.