Asian Longhorned Beetle


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Thorn Preserve Bioblitz 2018

Friday, 9/21 & Saturday, 9/22

This, our fourth BioBlitz will give an early Fall look at the living things at Thorn Preserve in Woodstock. Small groups, led by experts will go into the field at different times of day to explore for birds, herbaceous plants, butterfly caterpillars, trees, mosses, lichens, aquatic macroinvertebrates, reptiles and amphibians. There will an electrofishing demonstration, nature activities for children, animal tracking and much discussion of habitat and the interrelatedness of living things.

Learn more at


Old Growth Hemlock Hike

Tuesday, October 2, 9:30 AM - 3:00 PM, Biscuit Brook Trailhead, RT 47, Denning NY

As part of lark in the park, join us for a hemlock hike led by intern Skyler Susnick! This hike will be a moderately difficult day hike along the biscuit brook trail (mostly) to an old growth hemlock stand. At this stand we will learn about old growth hemlock stands, hemlock value, and hemlock health and threats. Bring a lunch. Contact Skyler Susnick at with any questions.

Please Register by 9/28 at



Protect the Hemlocks! Fence Raising at Thorn

Saturday, October 6, 10:00 AM - 1:00 PM, Thorn Preserve, 55 John Joy Road, Woodstock NY

 Four years ago, the Catskill Center planted four rows of young hemlocks, as a future biological control release location for hemlock woolly adelgid (HWA). These trees will grow into a thick hedgerow which promotes easy recollection of the beetle Laricobius nigrinus, a target-specific predator of HWA.

On October 6th, we will be repairing the fence that has protected the hemlocks from deer herbivory, to keep these trees healthy as they grow. Come help us protect the hemlocks, and learn about the invasive species that are spreading throughout the Catskills, as well as what you can do to help keep your hemlocks alive.

Please RSVP to



CRISP Partners Meeting 10/18


Thursday, 10/18 10:00 AM - 12:00 Noon, Location TBD

Join us for our Quarterly CRISP Partner Meeting, share what Invasive Species work you are doing, and learn what other organizations are doing to stop invasive species. Our featured speaker is Kathryn Long of APHIS, who will discuss "Monitoring for Feral Swine in New York."