UKTC Archive

change to Mulching

Subject: change to Mulching
From: Jerry Ross
Date: Nov 13 2017 16:37:04
On 13/11/2017 15:01, Jim Quaife wrote:
Just add a small point to Alastair's "fill-ups" of mulch, a few months ago 
Tony Kirkham was showing the AARCs around Kew and surprised us all by saying that just 
simply topping up mulch was something he no longer indulged in. The reason is that the 
existing mulch by weathering and footfall actually formed a barrier and new mulch on 
top was of significantly reduced effectiveness.
This may be a symptom which affects Kew given the number of visitors, but actually the proportion 
of people who do actually trample on mulch is comparatively low.  For what it is worth, on the 
one hand I'm in no position to contest Tony's knowledge and experience, but on the other it seems 
to me that if existing mulch has "hardened off" then it should be raked or otherwise 
disturbed so that any "layer" can be broken and the new mulch integrated.

I wonder if in fact the 'hardening' of the mulch might be the result not simply of excessive footfall (as you suggest, the mere application of mulch tends to discourage people from walking on it) but is perhaps also due to its colonization by fungi with mycelium binding it together. If that were to be the case, would raking necessarily be a good or necessary thing?


It does depend upon whether mulching is a restorative measure over the short term, or a 
longer term measure.  That would depend upon the site, but if as you say the foliage 
indicates that the tree is OK, that may be a good sign in terms of the former, but 
again you don't mention the period over which trafficking over the root system occurred 
or how long ago it was reduced by the diversion.  As with all things to do with trees, 
it is all down to justification in site-specific circumstances, but in general I reckon 
that mulching is a "good thing".
Soil type??
Jim

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Charlie Ashworth
Sent: 13 November 2017 14:07
To: UK Tree Care
Subject: Re: Another big Beech to care for.

Thanks Alistair & Edmund.  I didn’t give enough info!

The compaction is less than a third of the actual rooting area but is quite 
severe (construction traffic for rebuilding collapsed listed building etc) 
and the fungal bodies sit against the buttresses of the roots from the 
compacted area.

The traffic will continue to some extent (access for three workers houses) so 
I need to do something to sort the issue out and they are going to resurface 
anyway so it needs to be done with my input rather than just that of the 
builders who caused the damage.

I have been waiting a wee while, and whilst doing so I advised the owners to reroute the heavy traffic 
and consider putting the tree in my care.  The crown isn’t showing any signs, no die back at 
present.  But the fungal infection is evident for the second year (sadly they keep calling me in after 
they’re past their best).  I think the owners hoped it would go away, but it hasn’t, so 
they’re now inclined to let me do my best for the tree.

The direct damage to the exposed roots makes me inclined to do more rather 
than less.  I feel if we can improve the situation it would give these roots 
a chance of recovery.

Your thoughts are much appreciated
Charlie


On 13 Nov 2017, at 13:47, Edmund Hopkins 
<Edmund.Hopkins@xxxxxxxxxxxxxxx.gov.uk> wrote:

Much will depend on the extent and severity of the compaction, how long the trafficking 
has been underway, and how much of the actual (rather than the radial formula) root 
area has been compromised. I'd just urge caution before embarking upon a series of 
remedial measures and investigations. "Wait and see", maybe? As for 
retrenchment pruning, you might follow the dieback with the saw, but the dieback itself 
can tell a story.

Edmund

Edmund Hopkins
Tree Officer
Heritage and Urban Design
City Planning
0115 XXXXXXX

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Charlie
Ashworth
Sent: 13 November 2017 13:30
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Another big Beech to care for.

Hello All,

I have a client with another very large Beech with a partially compacted 
rooting area (caused by excessive traffic for the type of surface, some 
surface root damage and some fungal fruiting bodies of possibly honey fungus 
(rotted down so difficult to tell).  Stem is sound, crown is stunningly 
perfect. Owners are aware of risks and would like to maintain tree for as 
long as possible.

Ideally I’d like to arrange decompaction/aeration, root investigation, 
mulching, create a new driveway surface (including cellular system and permeable 
surface) and create an aesthetically pleasing barrier to stop traffic cutting the 
corner again and causing direct damage to the exposed roots.  Majority of traffic 
has already been diverted, but some access to the rear of the property is still 
required (I did suggest moving it all but that was a step too far).

In the long term I have warned that systematic retrenchment may be required 
as well as the above, though I am loathe to do this to a beech and such a 
fine specimen.

I ask for any sources of information, guidance, or research on similar cases. 
 Also, of any contacts for advice or the decompaction, aeration and root 
investigation that cover the north west of England.

And of course if there is something that I may not have mentioned as a course of action you feel 
would be pertinent in saving this ‘big Ol’ girl’ from past poor management, 
please do let me know.


Best Wishes
Charlie




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______________________________________________________________________
__ AXCISCAPE SOFTWARE for on-site tree surveying and plotting to CAD.
Download for free and try the demo. Visit: http://www.axciscape.com

ARBORSHADOW R4 shadow plotting software.
Visit: http://www.arborshadow.com

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______________________________________________________________________
AXCISCAPE SOFTWARE for on-site tree surveying and plotting to CAD.
Download for free and try the demo. Visit: http://www.axciscape.com

ARBORSHADOW R4 shadow plotting software.
Visit: http://www.arborshadow.com

CAD DRAWING SERVICE. Visit: http://www.chrisskellern.com 
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______________________________________________________________________
AXCISCAPE SOFTWARE for on-site tree surveying and plotting to CAD.
Download for free and try the demo. Visit: http://www.axciscape.com

ARBORSHADOW R4 shadow plotting software.
Visit: http://www.arborshadow.com

CAD DRAWING SERVICE. Visit: http://www.chrisskellern.com
______________________________________________________________________



______________________________________________________________________
AXCISCAPE SOFTWARE for on-site tree surveying and plotting to CAD.
Download for free and try the demo. Visit: http://www.axciscape.com

ARBORSHADOW R4 shadow plotting software.
Visit: http://www.arborshadow.com

CAD DRAWING SERVICE. Visit: http://www.chrisskellern.com
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