Lucy Corrander's picture

Black lumps in lines on beech trees

Observed: 17th November 2012 By: Lucy CorranderLucy Corrander’s reputation in PlantsLucy Corrander’s reputation in PlantsLucy Corrander’s reputation in Plants

Black lumps in the lines found in bark on beech trees. They seemed to be melded in with the bark rather than growing on it. High up so couldn't get closer picture - but there were lots, always on the lines going round the tree. Each up to about an inch across.

Species interactions

No interactions present.

Species with which Beech (Fagus sylvatica) interacts


D.M.H.'s picture

Not a fungus part of trees

Not a fungus part of trees responce to damage caused year ago.

All given ID's are subject to error/ommissions. Please seek independent verification before acting on ANY advice given. BE SAFE =)

dennis trunecka's picture

Nodules on Beech bark.

As these nodules on bark of beech are quite common, I have wondered if the cause is known at all. Beech bark is thin; perhaps it is simply a scar produced to heal attack by insects, bacteria or anything else.

Lucy Corrander's picture

Where this picture goes

Thank for your comments.

Have moved the photo to plants as recommended but had put it in the fungus etc. section because I had assumed the lumps were caused by some kind of infection and the observation is of that rather than of the tree.

Some trees had so many more brown nodules than others it looked as if something had got into their systems.

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