Aerial of Dead Hemlocks through the Fog along Blue Ridge Parkway near Boone NC, North Carolina in the Appalachian Mountains and Blue Ridge Mountains

hemlock hemlock woolly adelgid kill dead dead trees disease forest evergreen woods haunted scary horror fog mist creepy death life halloween spooky branches tree branches woodlands blair witch movie haunted forest acid rain pollution air pollution fungus insects insect tree pruning chainsaw arbor arborist beetle bioligical control biology spraying invested treatments entomology scourge needles boone nc blowing rock nc blue ridge mountains appalachian mountains