Symptoms of chalara ash dieback (Hymenoscyphus fraxineus) on a small dying ash tree (Fraxinus excelsior) with a large health ash behind in autumn

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Photo credit: © Nigel Cattlin / Alamy / Afripics
License: Licensed
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Keywords: ascomycota, ash, autumn, bark, berkshire, chalara, deciduous, dieback, disease, diseased, dying, england, excelsior, fall, fraxinea, fraxineus, fraxinus, fungi, fungus, helotiaceae, hymenoscyphus, leaf, leafless, leotiomycetes, lesions, loss, necrotic, october, oleaceae, pathogen, tree, uk