Tag Archives: dieback

The ash tree (Fraxinus excelsior) is one of Europe’s largest native deciduous trees. Image credit: Matthieu Sontag / CC-BY-SA. Ash trees (genus Fraxinus) are widespread throughout the Northern Hemisphere, but are being devastated in Europe by the fungus Hymenoscyphus fraxineus, causing ash dieback. The disease is aggressive, spreads quickly through …

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