sooty bark disease of sycamore

(Cryptostroma corticale)

A fungal wilt disease with two syndromes. In the current season, part or all of the tree’s crown wilts and dies, the following season part or all of the crown may fail to come into leaf. The fungus is also widespread on dead wood and is an endophyte.

This definition is abridged from A – Z of tree terms: A companion to British arboriculture.
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