In a Sept. 15, 2016 photo provided by the University of Maine, Gaetan Pelletier of the Northern Hardwoods Research Institute describes diseased beech problem to members of the University of Maine Cooperative Forestry Research Unit in a stand of diseased beech in Aroostook, County. The tell-tale signs of beech bark disease are seen in the pock marked bark in this photo. Scientists say beech trees are beginning to dominate Northeastern forests in the era of climate change, and they are susceptible