No harm in speculation and chat, I'd say. The speculation I learned at
college was that the rhizomorphs would expend a lot of time and energy simply
getting from one chip to the next, so it wasn't a problem. How about that for
saloon bar?
One side issue of wood chip mulches which I know will interest some of us is
the displays of unlikely fungi that turn up, like Gymnopilus, and in
hothouses all the exotic aliens.
Edmund
Edmund Hopkins
Tree Officer
Planning Services
Nottingham City Council
________________________________________
From: A.j Clark [aj_clark2@xxxxxxxx.com]
Sent: 26 January 2010 19:45
To: UK Tree Care
Subject: RE: Wood-chip usage in general [Scanned]
I have no doubt that scientific support would be invaluable....... but I
am not a scientist, more so just someone that is capable of rooting around in
the top few inches of the ground and identifying armillaria rizomorphs.
However as my "reminiscent story" part is nothing more than exactly that,
I'd respectfully much rather you stick to the generic questions at hand than
try and steer this off topic.
Cheers
Andy Clark
(07881) 446345
From: arbor@xxxxxxxxxx.co.uk
To: uktc@xxxxxx.tree-care.info
Subject: RE: Wood-chip usage in general
Date: Tue, 26 Jan 2010 19:29:51 +0000
That example doesn't allow for the possibility that the removal of the
potential host food source could be the reason for increased occurrence in
the area. Composting generates a substantial amount of heat I would imagine
effectively sanitizing the medium. Come and stick your hand in my woodchip
pile!
It would be useful to have some sound scientifically based information on
the potential for cross infection etc but speculation can be dangerous.
-----Original Message-----
From: A.j Clark [mailto:aj_clark2@xxxxxxxx.com]
Sent: 26 January 2010 19:17
To: UK Tree Care
Subject: Wood-chip usage in general
With the recent "Biochar" topic floating around of late, it's got me
thinking of wood-chip and its associated use on more of a generic
level........
I remember a matter from several years ago that I had involvement in, after
a contractor had been called in to remove a large armillaria infected
Monkey Puzzle. The tree was situated in the midst of a large formal garden
within a stately home, quite a fair distance from any vehicular access.
Because of this, the contractor "advised" the head gardener that they could
manhandle the chipper up to the tree using the gardens network of
footpaths, and chip all the arisings back onto the formal beds close by.
Two years or so after this, I get questioned by a very bemused gardener, as
to why the surrounding trees and shrubs were starting to show signs of
demise, and why there were now more fruiting bodies around than were there
before the tree was taken out.
"Erm, maybe because the contractor created the ideal growing medium for the
rhizomorphs to flourish and spread??"
Which brings me onto my more generic question regarding usage of
woodchip.... With all this talk of bio-mass recycling and wood-chip fuelled
power stations etc, are we not missing the other side of the coin?
I mean c'mon, be honest, how many of us make a recommendation on an
infected tree, and either stipulate "burn arisings on site" or some other
sound way of controlled disposal of the infected arisings??
Or do we just rely on the contractor to "do the right thing", and trust
that the hazardous mater isn't going to end up as either decorative
top-dressing for Mrs Miggins prized rose bed, or be trekked the length and
breadth of the country just to end up in a biomass fuelled power station?
Regards
Andy
Andy Clark
(07881) 446345
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