Inonotus on Ash....

[Tony Croft aka hamadryad]

Yea thats what i thought.....and what about Hispidus canker?? Could you explain that for me please.....sorry.

 

Sean,

As I don't know what you mean with Hispidus canker, I assume you mean this : Bark canker ash ?

-

 

Hispidus Canker is not related to fungal or bacterial canker in ash, it is a symptom directly related to Inonotus hispidus. maybe Canker is the wrong word here that should technically be substituted for necroses, i apologise for this in past postings on this fungi and adding to confusions. (see images below)

 

 

 

 

 

 

 

 

 

[MattyF]

Not high risk but helps trees self pollard.....,nice pics by the way.

[Tony Croft aka hamadryad]

Not high risk but helps trees self pollard.....,nice pics by the way.

 

define high risk?

 

30 ton of tree failing at the root, or 500kilos of limb?

[RobArb]

unfortunately doesn't it always depend on targets? and thats where the risk is assessed?

[Fungus]

Hispidus Canker ... maybe Canker is the wrong word here that should technically be substituted for necroses (see images below)

 

Aha, now were talking , although I must admit, that this also seems an U.K. Fraxinus-I. hispidus related phenomenon, because I have never seen it over here, nor elswhere on the continent (yet). Does it also occur on other tree species like Ulmus ?

[Tony Croft aka hamadryad]

unfortunately doesn't it always depend on targets? and thats where the risk is assessed?

 

So, we have an ash with hispidus targets exist, do we fell it? or do we reduce it in keeping with the natural potential outcome, thereby retaining the tree and associated ecology and reducing the risk to negligible?

 

and the risk on a reduced ash of limb failure with hispidus is negligible in 99% of cases.

[Tony Croft aka hamadryad]

Aha, now were talking , although I must admit, that this also seems an U.K. Fraxinus-I. hispidus related phenomenon, because I have never seen it over here, nor elswhere on the continent (yet). Does it also occur on other tree species like Ulmus ?

 

So ash do not get the necroses in the netherlands or germany?

[MattyF]

define high risk?

 

30 ton of tree failing at the root, or 500kilos of limb?

 

Im defining it by a fungus that is likely to cause structual failure and damage to persons or property would it matter the size, its the potential of the situation of the tree and its surroundings that would be important,but if the wood is infected in a risk situation by a high risk of complete break down of structual integrity in wood down to rot caused by inonotus then its high risk! and from i have seen and even your photos show, is that break down.

[Tony Croft aka hamadryad]

if your valuing potential damge in pounds sterling, and quantifying the odds of that occuring, youll rate hispidus low, Tony Sorensen, or other QTRA guys what say thee?

[RobArb]

sorry hama think i put my point across wrong:blush:

 

i had this vision of an ash with hispidus in a nursery/kindergarten play area leaning over a fence towards a busy main road (these trees exist i have pics somewhere)

 

the point then being about high risk in heavy branch failure vs whole tree failure, but in this situation does the position of the tree (tis about 45') mean that it becomes a high risk?

 

i think "risk" as a word differs from situation to situation and cannot just be classified as high, low, moderate etc

 

i do agree with you on the natural pollarding being "less" of a risk than tree failure but at what point does this branch failure become to "high" of a risk to save the tree?

 

does that kinda make sense:confused1: