A great European copper beech graces our front yard. Its crown is 80 feet wide and the trunk 10 feet around. We think the tree was planted around 1800 by occupants of a nearby historical home. If so, it has lived through all the natural events of the 19th- and 20th centuries, including the infamous Hurricane of 1938. Now, we worry that the 21st century be its last because our tree shows the symptoms of beech leaf disease (BLD).