UKTC Archive

RE: Tree hazard potential assessment study Epicormics and Ivy

Subject: RE: Tree hazard potential assessment study Epicormics and Ivy
From: Jim Quaife
Date: Nov 03 2019 08:27:06
The thing about ivy is that when one looks at a heavily infested but healthy 
tree, the ivy does not compete with the peripheral foliage.
Ivy is a shade-tolerant plant and in simplistic evolutionary terms, there is 
no point in it compromising or even killing its host.  With leaves off such 
trees one can see the limit of ivy growth progression very clearly.
Clearly if a tree is in decline the foliar suppression effect upon ivy 
diminishes.
The only reason I specify the removal of ivy is where it prevents visual 
inspection of a "suspect" tree in a position where failure would have 
consequences.
Even then I only require the ivy to be cut so that it dies naturally, thus 
making the transition gentle for anything living in it so they can move on in 
their own time. 
Jim

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Bill Anderson
Sent: 02 November 2019 18:57
To: UK Tree Care
Subject: Re: Tree hazard potential assessment study Epicormics and Ivy

It looks to me like somebody made a half-hearted attempt at removing the
ivy from the lower stem.... But from this distance I wouldn't draw any
conclusions. Epicormics being produced like that, when a tree' had lower
branches removed excessively are not surprising to me.
The relationship of Ivy (Hedera helix) with its host trees in this country
Wayne, is not clear. Some sort of alellopathic deal is going down. Many
hosts seem to live quite happily with it and it never gets anywhere near
growing out of the top of the crown. Once a tree is declining it's a
different matter and stumps completely covered in Ivy (or houses) are a
fairly common sight. I'm vaguely aware that you guys have organisations
devoted to eliminating Ivy (No-Ivy League IIRC?) much as we have volunteers
attempting to wipe out Rhododendron ponticum in some areas.
Bill.

On Sat, 2 Nov 2019 at 09:54, Brewster, Ian <Ian.Brewster@xxxxxxx.co.uk>
wrote:

Looks like reaction growth (dormant buds becoming viable) to an overly
lifted crown and the ivy is exploiting the now available light.


Sent from my Samsung Galaxy smartphone.
Looks like reaction growth (dormant buds becoming viable) to an overly
lifted crown and the ivy is exploiting the now available light.


Sent from my Samsung Galaxy smartphone.


-------- Original message --------
From: Wayne Tyson <wt750mv@xxxxxx.com>
Date: 02/11/2019 05:25 (GMT+00:00)
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Tree hazard potential assessment study Epicormics and Ivy

Dear lads and lassies,

Would y'all have a look at this tree and tell me what might have caused the
sprouting of new branches well down the otherwise unbranched trunk? What
effects have y'all noted with respect to ivy and epicormics in odd
locations like this?


https://www.google.com/maps/@40.9356569,-73.7714749,3a,75y,231.6h,98.25t/data=!3m6!1e1!3m4!1stYkZ11VFspeuTReZTvhXXg!2e0!7i16384!8i8192
<
https://www.google.com/maps/@40.9356569,-73.7714749,3a,75y,231.6h,98.25t/data=!3m6!1e1!3m4!1stYkZ11VFspeuTReZTvhXXg!2e0!7i16384!8i8192


Cheers,
Wayne



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NPS
 -------- Original message --------
From: Wayne Tyson <wt750mv@xxxxxx.com>
Date: 02/11/2019 05:25 (GMT+00:00)
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Tree hazard potential assessment study Epicormics and Ivy

Dear lads and lassies,

Would y'all have a look at this tree and tell me what might have caused the
sprouting of new branches well down the otherwise unbranched trunk? What
effects have y'all noted with respect to ivy and epicormics in odd
locations like this?


https://www.google.com/maps/@40.9356569,-73.7714749,3a,75y,231.6h,98.25t/data=!3m6!1e1!3m4!1stYkZ11VFspeuTReZTvhXXg!2e0!7i16384!8i8192
<
https://www.google.com/maps/@40.9356569,-73.7714749,3a,75y,231.6h,98.25t/data=!3m6!1e1!3m4!1stYkZ11VFspeuTReZTvhXXg!2e0!7i16384!8i8192


Cheers,
Wayne



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



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