Wednesday, February 05, 2014

Beech infected with Meripilus Giganteus

Giant Polypore, Meripilus giganteus

Aswell as structural damage (loss of co-leader) some years ago this Beech tree had been infected by Giant Polypore, Meripilus giganteus.

This parasitic fungi can cause extensive internal damage before any external evidence of presence can be seen. It infects and grows on the roots and the trunk base of the host broadleaf, particularly Beech. Infection occurs via wounded or damaged tissue, the fungi establishes on deadwood before attacking the tree's living tissue. The first evidence of infection can be crown dieback or defoliation (as in this case). Bracket like fruiting bodies are produced in late summer or autumn at the base of the stem or from the ground immediately above any infected roots. 

With this tree an infection had been confirmed by the presence of fruiting bodies late last summer and felling was considered a requirement as the tree is located in a public access area and as decay progresses the tree weakens and the root anchorage fails. 

Stem girth at 1.5m was 4.52m

Posted by James on 05/02 at 02:24 PM
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