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Bark removed to expose a Dothiorella canker on the trunk of an old avocado tree.

Dothiorella canker, Botryosphaeria dothidea = Dothiorella gregaria. Brown and orange canker in wood on trunk of old avocado, exposed beneath bark. Riverside Co. Credit: David Rosen — Bark removed to expose a Dothiorella canker on the trunk of an old avocado tree. Credit: David Rosen

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