UKTC Archive

RE: Contact Stress Response

Subject: RE: Contact Stress Response
From: Brewster, Ian
Date: Sep 13 2018 11:44:10
Thank Jim, what would your photos show other than a dark recess where the 
cast girdle is located.
If they are of the recovered tree then brilliant. Do you recall the species 
and girth (I guess this is universal around the 35-45cm diameter)?
Thank Jim, what would your photos show other than a dark recess where the 
cast girdle is located.
If they are of the recovered tree then brilliant. Do you recall the species 
and girth (I guess this is universal around the 35-45cm diameter)?

From: uktc-request@xxxxxx.tree-care.info <uktc-request@xxxxxx.tree-care.info> 
On Behalf Of Jim Quaife
Sent: 13 September 2018 12:40
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: RE: Contact Stress Response

The chances are that the grille is cast iron. If so it is brittle and can be 
broken with a hammer (slip something underneath the impact points so that 
there is no leverage damage to the tree). Clearly the cambium is still 
functional so if done with care and the wound protected with hessian, the 
tree will survive and the wound will recover. I have done this many moons ago 
on 3 trees but I haven't got time to plunge into archives for photographs.
Jim
NPS
 From: uktc-request@xxxxxx.tree-care.info 
<uktc-request@xxxxxx.tree-care.info> On Behalf Of Jim Quaife
Sent: 13 September 2018 12:40
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: RE: Contact Stress Response

The chances are that the grille is cast iron. If so it is brittle and can be 
broken with a hammer (slip something underneath the impact points so that 
there is no leverage damage to the tree). Clearly the cambium is still 
functional so if done with care and the wound protected with hessian, the 
tree will survive and the wound will recover. I have done this many moons ago 
on 3 trees but I haven't got time to plunge into archives for photographs.
Jim



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