Kretzschmaria - infected tree management ?

[johnanderton]

Thanks for the replies will post some more info when it comes in

[daltontrees]

Chris you are right in relating Frank's data, it agrees with Goodfellow's, and others.

 

The summary of the Goodfellow report says "Risk of branch failure can be eliminated with removal of high-risk branches." Wish I havd been paid to reach that conclusion!

[treeseer]

The summary of the Goodfellow report says "Risk of branch failure can be eliminated with removal of high-risk branches." Wish I havd been paid to reach that conclusion!

 

Well Jules that may be the flaw in the "Go straight to the Conclusion and skip all that mess in the middle" scheme of assimilating research.

 

P 55-56 or so has the juiciest bits.

[wood cutter]

In my opinion it should be requested to be felled.

 

Good luck.

[David Humphries]

Kretzschmaria deusta infected beech failure.

 

Fruiting not at base but within cavity at 3m.

 

In my opinion, this wouldn't have been picked up other than by aerial inspection.

 

The soft rot is evident in the core

 

.

[armybloke]

You may find this useful

 

The significance of the decay fungus Kretzschmaria deusta (formerly Ustulina deusta):

 

Extract from ‘Principles of tree hazard assessment and management’ by David Lonsdale 1999:

 

“….U.deusta induces a brittle ceramic-like fracture. This can occur in main stems or root systems, since the fungus is exceptional amongst ascomycetes in being able to grow in the central wood of very large trees.

 

Fracture often occurs before an advanced white-rot has developed, so that the fracture surface can be quite hard.

 

The seat of the decay within the tree is usually at the stem base, where in some cases the fungus appears to have entered through a wound. In such cases, it can extend 4m or more up the stem, as well as into the roots. It can also enter via the roots, eventually causing windthrow.

 

This is a particularly dangerous decay fungus, partly because its fruit bodies are often overlooked, also because of its very common occurrence and wide host range, and finally because of the type of decay that it causes. The brittle fracture associated with this decay often occurs with no warning of incipient failure, and without the compensatory thickening that can occur with fungi which cause selective delignification (e.g. Ganoderma spp.). Except in very advanced cases, this decay cannot be detected with a stress wave timer and may also escape detection by certain kinds of mechanical probe.”

[treeseer]

No doubt it is a bad actor!

 

Thanks David; great pics of advanced fb's in interior. Climbers Rock!

[johnanderton]

Took a photo today of the sycamore that's due for a reduction , anyone hazard a guess at the likely extent of decay in the butt ? ,

[johnanderton]

[detritus21]

I'd reckon not to extensive yet but the reality is it could be horrendous. Thag I where the problem lies you can't tell. Given the hazard and the targets if it was a tree I had surveyed I would recommend removal