Quote:
Originally Posted by landscapeadvice
Hi, did some tree felling recently in order to thin out a plantation of
200 trees, the free was a turkey oak abour 15ft tall and disfigured.
when felled to make way for other better specimens the remaining logs
and stump had black veined stains. I have never seen this before. Does
anybody know what it is?
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It is caused by the tree creating a chemical barrier to contain infection within a segment of tissue.