Inonotus hispidus on Walnut

[charlie]

Has anyone experienced Inonotus hispidus on walnut? I know its mode of decay is degradation of both lignin & cellulose and has the ability to parasitize the cambium but how well does the host compartmentalize the decay? Is its appearance of decay more like Ash or London plane. Thanks for any advice.

[Wolfie]

Yes, seen it on Walnut.

 

 

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[sloth]

Seen it on J regia, relatively common round my way. Tends to end in branch tear-outs and hollows after a while in the bigger trees. Not really seen it much on younger trees though.

[Marc]

Very common on Ash, Apple, Walnut and Plane.

 

Like you I've always wanted to know the significance on Walnut, on Ash it can be a concern in relation to how long its been present and it location. On Plane it's less of a concern due to the higher concentration of Lignin I believe, as for Walnut I do not know and on that basis I treat it like Ash.

[nepia]

Better to wake up an old relevant thread I thought than to start a new one...

 

I encountered this yesterday.

The bracket's only appeared this year so seems very active.

The tree has light but frequent pedestrian traffic under it - members of the public.

Discussions with the owner are ongoing.

 

Jon

 

 

Oh for gawd's sake; how do I stop the unwanted pic rotation? They're uploaded from Google Drive, haven't been rotated and were taken with the phone in its usual orientation.

Edited July 29, 2016 by David Humphries

[David Humphries]

Better to wake up an old relevant thread I thought than to start a new one...

 

 

 

I encountered this yesterday.

 

The bracket's only appeared this year so seems very active.

 

The tree has light but frequent pedestrian traffic under it - members of the public.

 

Discussions with the owner are ongoing.

 

 

 

Jon

 

 

 

 

Not sure why you're having the image rotation problem.

I've edited them for you.

Great context pictures btw

 

 

Crown looks very healthy and it's had a hefty reduction in the past.

 

Have you sounded the trunk ?

 

Perhaps moving the bench away from the area would reduce the occupancy some more.

 

And reduce the potential for sitting on the grass under it around it by creating a mulch bed?

 

 

.

[nepia]

Thanks again David!

 

Your suggestions will be put forward but tree health is not something that comes to the fore at the premises. They were amazed when a mature pop snapped a couple of years ago; I could have crawled into the base, turned round and crawled out again. That one was by an entrance gatepost!

I think also that any restriction on full access will be resisted. I could have gone so far as to say that the location is a hotel and 'do what you want when you want - we are here but to serve' is the ethos.

 

The trunk sounded evenly firm to my knuckles!

 

I shall update at a later stage when I have the management's reaction.

 

Jon

[nepia]

Well there is no meaningful update sadly. The response to my lengthy e-mail explaining everything I had said at the time elicited 'Thanks for the tip; (the boss) is getting a local tree surgeon to take a look.'

 

So if anyone on here near the Glos/Worcs border gets called to a walnut with Inonotus keep us in the loop!

 

 

Jon

[Kveldssanger]

Typical! Pardon the cynicism, but the chances of the local tree surgeon knowing much about decay caused by Inonotus hispidus is slim, and particularly if they're going for a cheap option or the "fell it, mate" approach.

[nepia]

Uh - huh.

 

 

(= I agree!)