Asian Longhorned Beetle


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What We Do at CRISP

CRISP's resources are geared towards dealing with Early Detection Rapid Response invasive species, as well as certain forest pests (e.g. Hemlock Woolly Adelgid).  At this time, CRISP rarely assists in the eradication of some highly abundant invasives--such as multiflora rose--but our staff is more than happy to consult with individuals regarding identification of and control methods available for these species.  Send any questions regarding invasive species that threaten the Catskills region to or (845) 586-2611.

Hemlock Conservation Strategy

Regional Vision for Hemlock on the Landscape: Hemlock cathedral forests distributed across the landscape that provide quality habitat, important natural benefits, and provide an essential cultural resource.


Current situation and project overview. Within the Catskill Regional Invasive Species Partnership region hemlock dominated stands comprised ~ 10% of forest and have unique ecosystem functions. . Hemlock Woolly Adelgid (Adelgis tsugae), a small aphidlike insect native to Asia, threatens the persistence of hemlock in the Catskills and was originally detected in the Catskills in the late 1980s and has since spread through many hemlock stands across the region. Hemlock Woolly Adelgid feeding damages the canopy of the host tree and causes eventual mortality. Hemlock Woolly Adelgid is regarded as the greatest threat to hemlock forests in the region, and has been found to infest most surveyed hemlock stands in the Catskill Mountains. Another important hemlock pest, Elongate Hemlock Scale (Fiorinia externa), has been documented as widespread in the eastern Catskills. To date, half of 35 surveyed hemlock stands were in “moderately severe to severe decline.”


1. Protect and maintain genetic diversity of hemlocks across the landscape over the long-term.

2. Protect hemlock forests that provide important cultural and economic value, including historical, recreational, educational, and environmental benefits.

3. Preserve and protect hemlock stands in locations with cold water streams and brook trout habitat.

View presentations and recordings from CRISP events!

  Biological Control

Control_Agent_Three.pngBy joining forces with USDA-APHIS and the New York State Department of Agriculture and Markets, CRISP contributed to the study of biological controls on Emerald Ash Borer (EAB). Three species of tiny stingless wasps were released at several carefully selected sites. The wasps, known as parasitoids, lay their eggs in EAB larvae, killing the insect before it can pupate and emerge from the tree. These control agents, which only target emerald ash borer, were also released in Canada and Michigan, where EAB was first discovered over a decade ago.

For more information on biological control, please take a look at our presentations.



Catskill Community Ash Tree Inventory Project


CRISP recruited and trained volunteers to inventory ash street trees in 20 communities throughout the Catskills.  

Check on the Catskill Community Ash Tree Inventory Project webpage to view our results and to find out if we've been in your community.



Early Detection Network and Outreach



In partnership with Cornell Cooperative Extension of Green County, CRISP has developed an early detection network of trained Master Gardener volunteers and Cornell Cooperative Extension staff in each county in our region to act as the first line of defense for early detections of new invasive species. 

Learn more about Early Detection Network and Outreach



Asian Longhorned Beetle Public Outreach




CRISP is working with Vibrant Creative to develop a multi-media campaign to reach a broad audience with the message “Don’t Move Firewood” and information on how to identify the beetle and its symptoms.

Learn more about Asian Longhorned Beetle Public Outreach


Ulster County Emerald Ash Borer Task Force


The Ulster County EAB Task Force was created to address the needs of communities in Ulster County in responding to the impacts of the Emerald Ash Borer.

Learn more about the Ulster County Emerald Ash Borer Task Force


Greene County Emerald Ash Borer Task Force

EAB_exit_hole.jpgThe Greene County EAB Task Force was created to address the needs of communities in Greene County in responding to the impacts of the Emerald Ash Borer.

Learn more about the Greene County Emerald Ash Borer Task Force


Ash Sentinel

Ash_Firewood.jpg2011 was the pilot year for a citizen science project in which landowners who already cut firewood can girdle an ash tree in the spring and then cut it down and peel back the bark in the spring to look for Emerald Ash Borer larvae.

Learn more about the Ash Sentinel Tree Project



Minutes from CRISP Quarterly Meetings and Annual Reports


Februrary 20th


October 9th

July 10th


February 7th

June 6th


March 15th

June 8th

September 9th

Annual Report


April 21st

June 16th

September 8th

December 3rd

Annual Report


December 9th