Our state tree, the Eastern hemlock, is under threat by the invasive hemlock woolly adelgid! This greatly affects forest and stream ecosystems. We’re working to control the spread of invasive HWA in select stands of hemlock trees on some of our preserves: Wolf Creek Narrows Natural Area, Marshall Preserve and Bennett Branch Forest. Working closely with the PA Department of Forestry and after careful evaluation and testing, our land staff and our Pennsylvania Natural Heritage Program (PNHP) scien
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The hemlock woolly adelgid is an invasive insect that attacks eastern hemlock trees. In this video, learn how VDOF forest health staff are using another insect to fight the adelgids. | Virginia Department of Forestry
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