Managing Trees with Decay & Dysfunction

[David Humphries]

You have a real devilish streak Mr Humphries:evilgrin02:

 

Just been picking up hints and tips off the most witty & cutting members, as I've gone along Mr Harding

 

 

 

 

 

 

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[Tony Croft aka hamadryad]

Don't recall 'you' being invited !

 

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thats because your going senile David, I WAS invited, and Look into the AT archives.

 

I will leave you too it then:001_rolleyes:

 

Cheeky sod:biggrin:

[sloth]

IMO...a most appropriate use of 'corenet cutting' to create a much more naturalistic look to the cuts..nicely done David...btw have always been bemused at what appears to be a photoshopped dog in that back cover.

 

I heard, though don't know the truth, that it is cardboard cut-out of his dead dog, which passed shortly before the photo was due to be taken. I can believe it!

[David Humphries]

Had a rare oportunity to look a little closer at the decay significance of this large leaning silver birch, which has Ganoderma lucidum associating with it.

 

Target is a woodland path with joggers/dog walkers.

 

 

Not a huge amount really known about this white rotter and its impact/significance in relation to tree failure (from what I can gather).

 

Supposedly capable of both simultaneous & selective delignification

 

What we did find (via the PD400) was that there is on this tree, an asymetrical cone of white rot on the tension side of the basal region of the birch, and a thicker residual wall on the compression side.

 

 

We're going to continue to monitor this tree and will periodically note any degradation of the butresses & will remeasure the extent of internal decay at 3 month intervals

 

 

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[Tony Croft aka hamadryad]

Had a rare oportunity to look a little closer at the decay significance of this large leaning silver birch, which has Ganoderma lucidum associating with it.

 

Target is a woodland path with joggers/dog walkers.

 

 

Not a huge amount really known about this white rotter and its impact/significance in relation to tree failure (from what I can gather).

 

Supposedly capable of both simultaneous & selective delignification

 

What we did find (via the PD400) was that there is on this tree, an asymetrical cone of white rot on the tension side of the basal region of the birch, and a thicker residual wall on the compression side.

 

 

We're going to continue to monitor this tree and will periodically note any degradation of the butresses & will remeasure the extent of internal decay at 3 month intervals

 

 

.

 

I will suggest armillaria as a secondary coloniser being the downfall, lucidum IME is similar to applanatum:thumbup1:

[Doug Blease]

Very impressive application of managment where so many would have to simply fell and replace to avoid liability issues.

[David Humphries]

I will suggest armillaria as a secondary coloniser being the downfall, lucidum IME is similar to applanatum:thumbup1:

 

To which downfall does one refer ?

 

 

 

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[Tony Croft aka hamadryad]

To which downfall does one refer ?

 

 

 

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just the obvious one that will be, an old birch on a lean in a wood with a white rot fungi at the core, cant last forever but not suggesting the lucidum will be the ultimate cause but that a secondary "weakness" parasite will be.

[David Humphries]

just the obvious one that will be, an old birch on a lean in a wood with a white rot fungi at the core, cant last forever but not suggesting the lucidum will be the ultimate cause but that a secondary "weakness" parasite will be.

 

Ever the optimist

 

 

Its going to be a very interesting case study over time.

 

particularly due the rare association of the species.

 

 

 

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[David Humphries]

Very impressive application of managment where so many would have to simply fell and replace to avoid liability issues.

 

Thanks for the comment Doug.

 

Updating to the PD400 from the Sibtec Dmp has been a good move for us.

 

Fairly easy to use & interpret, plus we can also use it up in the tree (as long as no one drops it )

 

Ascertaining whether trees are vital enough to compartmentalise decay gives us more options than just a straight fell/removal.

 

The trees in these shots have varying decay associations;

 

Beech/G pfeifferi

Oak/Perenniporia

Euculyptus/Ganoderma sp

Pine/Phaeolus

Ash/Ganoderma sp

Cherry/Laetiporus

Turkey Oak/Fomes

 

the chance to assess the decay plus help build up a tangible portfolio of the characteristics of the associations, is valuable in both evidence & experience

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