UKTC Archive

RE: Tree hazard potential assessment study Trunk break INJURY Child 2019 11 06

Subject: RE: Tree hazard potential assessment study Trunk break INJURY Child 2019 11 06
From: Rupert Baker
Date: Nov 07 2019 15:18:01
Hi Michael,
Useful info;  but a comment: 
in very high winds, 'perfect' trees may be as ready or more so to fail than 
'defective' ones. This is because they have large healthy crowns full of 
large healthy leaves, have grown well and so have a big sail area; by 
contrast trees in poor health may have smaller crowns, much less dense leaf 
area in the canopy, and, if they are decaying, may have more flexible stems 
as a consequence of the hollowing. 
Ted Green, a well known Ancient/Veteran tree person in the UK, tells a lovely 
story about a visit of French foresters to a wood in ?Kent?, SE England 
anyway, after the 'hurricane of 1987 which devastated tree cover in SE 
England. 
'M'seiur Green', asked one of the guests, 'was ze forestier here a religious 
man?' 'No', said Ted, 'at least, not by the way he swears; why?' 
'Well' said the Frenchman, 'all ze surviving trees, zey have white crosses on 
zem' .



Most of the big healthy maidens in the wood had blown over, leaving  ones 
that had been marked as unsafe................
All the best
Rupert Baker

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info On Behalf Of Michael Richardson
Sent: 07 November 2019 12:03
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Re: Tree hazard potential assessment study Trunk break INJURY Child 
2019 XX XX

The tree appears to have some white rot in it, most likely due to 
unspecialized colonization, not heart rot, beyond that we do not know much 
about it.  The idea of epicormic shoots may be wrong as I believe the tree is 
*Ulmus pumila* and as such adventitious buds and shoots are very common.

We do know that there was widespread tree damage across New York State and 
Ontario that night (and maybe beyond?).  I have seen hundreds of damaged 
trees on my routes over the last week.

Wind speeds have been reported as 50-80 kph and gusts as high as 120 along 
Lake Ontario.  With these speeds we see breakage of defective trees and some 
"perfect" trees.  Why perfect. well some species, Norway Maple and Bradford 
Pears, still had leaves so wind loading was high, particularly with the dense 
damp air.

How does one assess this type of failure in advanced? A competent person 
performs a through ground-based VTA and recommends aerial or advanced 
inspections as necessary.  That is not a great mystery but in general 
advanced assessments are not commonplace, a level 1 or level 2 as defined by 
TRAQ is the standard.

Michael


Michael Richardson B.Sc.F., BCMA
Ontario MTCU Qualified Arborist
Richardson Tree Care
Richardsontreecare.ca
613-475-2877
800-769-9183

  <http://www.richardsontreecare.ca/images/Tree_Doc_logo_email.png>



On Thu, Nov 7, 2019 at 3:02 AM Brewster, Ian <Ian.Brewster@xxxxxxx.co.uk>
wrote:

From a brief read there were a lot of trees failing causing 
electricity supply disruption due it would appear to adverse weather 
that night. With your example Were the neighbours concerned about a 
visible tree defect or complaining because it was a nuisance to them?
I hope the girl makes a full recovery btw.

Sent from my Samsung Galaxy smartphone.
From a brief read there were a lot of trees failing causing 
electricity supply disruption due it would appear to adverse weather 
that night. With your example Were the neighbours concerned about a 
visible tree defect or complaining because it was a nuisance to them?
I hope the girl makes a full recovery btw.

Sent from my Samsung Galaxy smartphone.


-------- Original message --------
From: Wayne Tyson <wt750mv@xxxxxx.com>
Date: 07/11/2019 03:33 (GMT+00:00)
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Tree hazard potential assessment study Trunk break INJURY 
Child
2019 XX XX

Here it is. Of course there's insufficient information to come to a 
conclusion, but the location of the break on the trunk in relation to 
the apparent growth from dormant (epicormic) buds might have relevance 
or be a coincidence. Apparent heart rot.

The question is, how does one best assess this kind of failure in advance?


https://www.nbcnewyork.com/news/local/Tree-Falls-on-Young-Trick-Or-Tre
ater-in-NY-After-Halloween-Storms-Heavy-Winds-Leave-Damage-Across-Regi
on-564208701.html
<
https://www.nbcnewyork.com/news/local/Tree-Falls-on-Young-Trick-Or-Tre
ater-in-NY-After-Halloween-Storms-Heavy-Winds-Leave-Damage-Across-Regi
on-564208701.html


Thanks for your help!

Wayne



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NPS
 -------- Original message --------
From: Wayne Tyson <wt750mv@xxxxxx.com>
Date: 07/11/2019 03:33 (GMT+00:00)
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Tree hazard potential assessment study Trunk break INJURY 
Child
2019 XX XX

Here it is. Of course there's insufficient information to come to a 
conclusion, but the location of the break on the trunk in relation to 
the apparent growth from dormant (epicormic) buds might have relevance 
or be a coincidence. Apparent heart rot.

The question is, how does one best assess this kind of failure in advance?


https://www.nbcnewyork.com/news/local/Tree-Falls-on-Young-Trick-Or-Tre
ater-in-NY-After-Halloween-Storms-Heavy-Winds-Leave-Damage-Across-Regi
on-564208701.html
<
https://www.nbcnewyork.com/news/local/Tree-Falls-on-Young-Trick-Or-Tre
ater-in-NY-After-Halloween-Storms-Heavy-Winds-Leave-Damage-Across-Regi
on-564208701.html


Thanks for your help!

Wayne



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To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

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