Hemlock wooly adelgid is a small insect that drains sap from hemlock branches until the tree dies. Until recently, cold winters have limited the spread of hemlock woolly adelgid. As winter temperatures warm, scientists and resource managers suspect this pest could spread throughout our region. We need your help to track the spread of this deadly pest. Join our project by monitoring your local forest for hemlock woolly adelgid and reporting what you find.

Contribute data any time of year. Try to check at least 10 branches on 10 trees before reporting your results.

Learn more:

• Hear the latest updates from our lead scientists in this video.
• Explore the project data and spot emerging trends or patterns on your own! Email Abigail along@gmri for an export of the data.
• Read published student research articles about hemlock woolly adelgid from the middle school journal, Findings From the Field.
• Educators: Find curriculum to support student learning through participation in this project on the Gulf of Maine Research Institute's Learning Resource Hub.