UKTC Archive

Re: Fungus on Lime

Subject: Re: Fungus on Lime
From: Michael Richardson
Date: Oct 06 2019 12:19:17
Coniophora puteana is but one species consuming bark.  There are a whole
host of "smooth patch" fungi, often highly specialized and one species of
fungus per genus of tree.  In North America Denrothele and Aleurodiscus are
widespread and common.

There are bark inhabiting fungus that apparently shift  modes and can
consume wood as well as bark.  I believe the disease we call Massaria is
caused by Splanchnonema platani but its anamorph  Macrodiplodiopsis
desmazieresii is a scavenger of dead material and is "harmless".  There
are likely hundreds of bark inhabiting species requiring identification by
a mycologist but whose life stories are largely unknown.

I know of one case where a well-known consulting arborist condemned a large
oak because of Aleurodiscus, a species.  His reputation took a hit when his
lack of knowledge was discovered (or his manipulation of information to
condemn a tree for his client).


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 Sun, Oct 6, 2019 at 7:15 AM "David Lonsdale" <uktc@xxxxxx.tree-care.info>
wrote:

Dear All,

Coniophora puteana, a well-known cause of wet-rot in timber, can degrade
the outer layers of the bark of various tree species if humidity is high
(typically near ground level).  The underlying inner bark remains intact
and eventually becomes exposed by the shedding of the decaying outer bark.
 The exposed inner bark usually looks smoother than the surrounding
unaffected outer bark; hence the name 'smooth patch' for this condition.

DL

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
<uktc-request@xxxxxx.tree-care.info>
On Behalf Of AV Arboriculture
Sent: 06 October 2019 11:11
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Re: Fungus on Lime

Hi Wayne,

That is interesting - do you know of any research that has shown
saprophytes to consume tree bark?  That was one of my main concerns.

Mike

Regards,

Mike Charkow
Principal Arboriculturist
______________________
Arbor Vitae Arboriculture Ltd

Planning surveys, Tree inspections, Bats in trees inspections,
Arboricultural consultancy, Soil de-compaction, Root Investigation,
Woodland Management.

[ mailto:info@xxxxxxx.co.uk | info@xxxxxxx.co.uk ] [ https://avtree.co.uk/
| www.avtree.co.uk ]
07917XXXXXX
Company Registration Number: SC413171

----- Original Message -----
From: "Wayne Tyson" <wt750mv@xxxxxx.com>
To: "uktc" <uktc@xxxxxx.tree-care.info>
Sent: Saturday, 5 October, 2019 22:53:14
Subject: Re: Fungus on Lime

Ivy tends to promote and maintain a higher humidity in such
micro-environments, so perhaps its removal might discourage fungal
development. Closer examination might reveal useful particulars. Sometimes
saprophytes consume the bark, setting up conditions for entry into the
heartwood, as well as set up conditions for parasitic species. Even loss of
heartwood weakens the tree, which can appear to the casual observer to be
"perfectly healthy."

I am speaking from experience in the USA only. Even in the relatively dry
climate in which I live now, I have observed such phenomena in association
with ivy. Some species appear to be more tolerant than others. In
susceptible species, failure is often the result, even of those "perfectly
healthy" ones. Any tree professional should perform all of the necessary
investigations to secure as complete as possible analysis. (No offence to
my UK listserv pals, but failure to follow those procedures seems to be
more common than not here in the USA.)

Wayne

On Sat, Oct 5, 2019 at 1:34 PM Rupert Baker <rupert_baker@xxxxxxxx.co.uk>
wrote:

This looks like a fungus I've seen in humid situations at the base of
various species trees; if it is the same thing it is a harmless
saprophyte.  Mind you, that is no the basis of a low-res photo...
Atb
Rupert
-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info On Behalf Of AV Arboriculture
Sent: 05 October 2019 13:09
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Fungus on Lime

I think this is some form of dry rot - do you agree? It was growing on
two Lime trees under ivy. I didn't find any bark necrosis, though one
tree has a small amount of sapwood delignification (possibly
unrelated). Does anyone know the effects of this on trees?

Mike Charkow



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