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Our mission is to promote education, prevention, early detection and control of invasive species to limit their impact on the ecosystems and economies of the Catskills 

Click here for a map of the CRISP Region


CRISP 2019 Invasive Species Funding is Closed



Thanks to the New York Environmental Protection Fund

as adminstered by the NYS Department

of Environmental Conservation

CRISP and its partners are working to defend the Catskills

CRISP partners represent diverse stakeholders throughout the Catskill Mountain Region. We are one of eight Partnerships for Regional Invasive Species Management (PRISM) in New York State.

Want to Help? 






Hemlock woolly adelgid (Adelges tsugae) (HWA) is an invasive forest pest native native to Japan. Since its introduction in Virginia in the 1950’s, this insect has spread all throughout the East Coast, from Canada to Southern Appalachia, decimating Eastern (Tsuga canadensis) and Carolina (Tsuga caroliniana) hemlocks. The adelgids’ egg sacs- which look like small woolly white balls, similar to the tip of a Q-tip- can be found on the underside of hemlock branches, at the base of the needles, where the insect feeds. They feed off the tree’s parenchyma cells, taking resources from the tree. This eventually causes a lack of new growth, and typically tree mortality. This destructive intruder has been spreading through the Hudson Valley and the Catskills since the late 1980’s and is now widespread.

Learn more about what CRISP is doing in it’s fight against HWA under Hemlock Conservation Strategy at



Above: Evan Sweeney and Dan Snider treating Giant Hogweed in Sullivan County. Giant Hogweed is an invasive plant which can cause severe burns, making it one of our priority species to suppress. Click here to find out more. 




CRISP Invasive Species Categorization

CRISP Invasive Species Categorization prioritizes invasive species based on prevention, early detection and control efforts needed for these invasive species based on the species invasiveness and distribution in CRISP. Download the Prioritization here: CRISP Invasive Species Prioritization

We Need Lanternfly Spotters!


CRISP is looking for volunteer Lanternfly Spotters to monitor for Spotted Lanternfly. Spotted Lanternfly is an invasive pest from Asia that feeds on 100 plant species including tree-of-heaven and threaten's New York's apple and grape crops. Here's how you can help!



Learn about the Agricultural Pests in the Catskills!



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