UKTC Archive

Re: Added Nitrogen and Fungal Colonization Strategy

Subject: Re: Added Nitrogen and Fungal Colonization Strategy
From: Michael Richardson
Date: Apr 17 2020 13:08:21
Here in Ontario a similar process using borax (or other products) has been
done to prevent decay organisms entering cut stumps and transferring
through root gratfs.


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 Fri, Apr 17, 2020 at 9:01 AM Rupert Baker <rupert_baker@xxxxxxxx.co.uk>
wrote:

The only thing I can contribute, Michael, is that in the uk in forestry it
was (may still be) the practice to spray freshly cut conifer stumps with a
Urea solution, this acting as a nitrogen fertiliser, and changing the fungi
that then colonised the wood - specifically, making the cut stump
unattractive to colonisation by Heterobasidion annosum (Fomes annosus as
was), a severe basal decay pathogen, especially on second-rotation and
later crops of conifer, by making it more likely that saprophytic fungi
colonised the wood instead.
A recent website:
https://www.forestresearch.gov.uk/tools-and-resources/pest-and-disease-resources/conifer-root-and-butt-rot/conifer-root-and-butt-rot-risk-based-stump-treatment/

Atb
Rupert

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info On Behalf Of Michael Richardson
Sent: 17 April 2020 13:17
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Added Nitrogen and Fungal Colonization Strategy

I remember reading that the addition of nitrogen, in the form of
fertilizer or dog urine, can not only increase decay rates of fungi but
also change their colonization strategy.  As I remember there was talk of
Armillaria switching from a passive scavenger mode of dead material to
active pathogensis of live trees.

Does anybody  have any information they can share?

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>



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The UKTC is supported by Bosky Trees arboricultural consultancy
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