October 16, 2019 12:00 AM
Pennsylvania's state tree, the eastern hemlock, is seriously threatened by the invasive hemlock woolly adelgid.
February 27, 2019 12:00 AM
Rebecca Bowen, Ecological Services Section Chief, DCNR's Bureau of Forestry
We're always on the lookout for invasive plant species that are up-and-coming threats. Check out these emerging species of concern.