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On young ash, cankers on shoots may be formed by the fungus Phoma exigua - the bark within these cankers often has a shredded appearance and fruiting bodies of the pathogen may be evident in the form of small

Reference: 2025181

On young ash, cankers on shoots may be formed by the fungus Phoma exigua - the bark within these cankers often has a shredded appearance and fruiting bodies of the pathogen may be evident in the form of small "pimples" on the surface of the dead bark.
Date Taken: 19th April 2016

Photographer:
Copyright: Crown Copyright
Credit line: Forestry Commission
Image size: 2626 x 3500 (28Mb)
DPI: 300

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