kcf32's picture

Alder Bark "nodules"

Observed: 2nd March 2011 By: kcf32
S159 Neighbourhood Nature - course completeShropshire Wildlife Trust
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Alder Bark nodules 2011-03-02
Alder Bark nodules 2011-03-02 (2)
Alder Bark nodules 2011-03-02 (4)
Description:

Several nodules found on the bark of an alder. Some had bore holes in them and one was broken showing that it was hollow inside. Are these natural features of an alder or are they galls? If they are galls what may have caused them? (I have placed this under invertebrates due to the bore holes.)

Identifications

No identification made yet.

Species interactions

No interactions present.

Comments

petershirley's picture

Alder nodules

Bit of a mystery these, I am already aware of these specimens and I am trying to find an answer.

Peter Shirley

Refugee's picture

Anything like this?

This one was on a mature Oak.
I may be able to visit it again if need be.

http://www.ispot.org.uk/node/231457

Refugee

kcf32's picture

Alder nodules

Thank you for your suggestion.

I have checked this out in the British Plant Galls AIDGAP guide and it seems a strong possibility as it states that there are a wide range of hosts and shapes.

I will put your suggestion to our local Gall recorder. I have now found similar nodules con other Alder and also recently something similar on an oak.

Keith