UKTC Archive

Re: Contact Stress Response

Subject: Re: Contact Stress Response
From: Wayne Tyson
Date: Sep 12 2018 22:09:01
Thank you Rupert B! I'm adding this to my TREE BRUTALIZATION file.

I agree that bridge-grafting would be worth the effort (if someone will pay
the tariff). The verticals might be left in place to minimize possible
entry points for pathogens, and one might remove and graft parts of the
encircling material to ensure that the grafts are taking properly and that
said entry point are minimized.

Wayne

On Wed, Sep 12, 2018 at 2:35 PM Rupert Baker <rupert_baker@xxxxxxxx.co.uk>
wrote:

Hi Ian ,
Nice to hear your (digital)voice again.
Re the Gleditsia, is there any way you can get an angle grinder in and cut
the collar in 2 or 3 places; allowing little bridges of cambium to keep the
trees alive until they callus over the ring and start proper vascular
conduction again?
PS you might like this photo from a stately home near Exeter; the tree is
surviving....planted 1859..
All the best

Rupert

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
<uktc-request@xxxxxx.tree-care.info>
On Behalf Of Brewster, Ian
Sent: 12 September 2018 09:32
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Contact Stress Response

Hi Guys,

It has been a few years since I last posted and hope all are well.

We have an interesting case regarding Gleditsia triacanthos which I would
like to share with the collective.

Several trees of the above where planted approximately 30 years old in a
precinct, these have grown within cast iron grates and steel cages.
They have enveloped the collar at the steel cage base. The cage has been
cut away leaving the lower steel brace at the tree base.
The tree has reacted to this by Contact Stress Response. It cannot be
removed.

Question: will the tree survive the girdling caused by the collar, or will
it fail?

Picture below of same tree before we became involved and cage removed.
[cid:image003.jpg@01D44A7B.6CEE81F0]
Hi Guys,

It has been a few years since I last posted and hope all are well.

We have an interesting case regarding Gleditsia triacanthos which I would
like to share with the collective.

Several trees of the above where planted approximately 30 years old in a
precinct, these have grown within cast iron grates and steel cages.
They have enveloped the collar at the steel cage base. The cage has been
cut away leaving the lower steel brace at the tree base.
The tree has reacted to this by Contact Stress Response. It cannot be
removed.

Question: will the tree survive the girdling caused by the collar, or will
it fail?

Picture below of same tree before we became involved and cage removed.
[cid:image003.jpg@01D44A7B.6CEE81F0]
NPS




--
The UK Tree Care mailing list
To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC is supported by Bosky Trees arboricultural consultancy
http://www.boskytrees.co.uk/



--
The UK Tree Care mailing list
To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC is supported by Bosky Trees arboricultural consultancy
http://www.boskytrees.co.uk/




-- 
The UK Tree Care mailing list
To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC is supported by Bosky Trees arboricultural consultancy
http://www.boskytrees.co.uk/