Lingering hemlock project

Locating and breeding resistant hemlock trees

GET INVOLVED- Lingering Hemlock Search

Across much of the eastern hemlock’s range, HWA has caused widespread mortality. Yet some hemlocks are surviving longer than expected. Explore how you can help identify lingering hemlock trees!

Read More

GET INVOLVED- Hemlock Health Monitoring Plots

In regions where hemlock mortality is still below 80%, early monitoring is critical. Hemlock Health Monitoring Plots track decline over time and help us prepare for future lingering hemlock searches. Learn how to set up a plot and contribute data from your forest.

Read More


Not sure which protocol is best for you?

Want to get involved, but not sure which protocol applies to your forest(s)? Follow this link to find out.

Which protocol is best for me?

ABOUT US

The Lingering Hemlock Project aims to support resistance breeding in hemlock trees for long-term control against hemlock woolly adelgid (HWA).
This project is a subset of Tree Species in Peril, a The Nature Conservancy project to further development of pest-resistant native northeastern tree species at risk from invasive pests. The Lingering Hemlock Project focuses specifically on locating and breeding resistant hemlock trees.
Hemlocks are important trees in eastern North America, creating unique forest conditions because of their densely branching twigs and roots. Many have already been lost to HWA and other pests, but there is still hope to save them.
The Lingering Hemlock Project is a coalition of academic institutions, government agencies, and nonprofit organizations. Each partner in the coalition plays a different role in the development of HWA-resistant hemlock trees, an ambitious but promising goal. Use the buttons below to learn more about this project.

CONTACT US

info@lingeringhemlockproject.org