This is an information by Dr. rer. silv. Thomas Jung expert for Phytophthora, forest and tree diseases and nurseries
http://www.tree-diseases.com

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Phytophthora Picture Gallery - Beech decline

Beech 8: Tongue-shaped bark lesion caused by P. cambivora on a mature beech (F. sylvatica) growing in a mixed mountain forest in the Bavarian Alps; note active (orange) and inactive, dry (brown) parts.

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Picture 8 of 28