Ash dieback fungus (Hymenoscyphus fraxineus) on European ash. Symptoms of Ascomycete pathogenic fungus causing leaf loss on common ash tree (Fraxinus excelsior)

Ash dieback fungus (Hymenoscyphus fraxineus) on European ash. Symptoms of Ascomycete pathogenic fungus causing leaf loss on common ash tree (Fraxinus excelsior) - 77389046

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