beech bark disease (bbd). fagus tree bark infested by xylococculus betulae, cryptococcus fagisuga, neonectria faginata

faginata neonectria damage infestation extensive bark invasion cankers fagisuga cryptococcus betulae xylococculus fagus tree bbd beech disease close unique common sylvatica european texture nature macro skin pattern rough forest detail background trunk surface natural timber wood textured environment grey cracked closeup old rugged infested bbd faginata