Inonotus hispidus

[Big 'Ammer]

Seen on a roadsise ash last week.

[David Humphries]

Very nice shots BH.

 

Guess you took them up around your neck of the woods recently.

 

The ones down south I've seen, are all pretty desicated now.

Have been for a month or so.

Probably a climatic effect

 

 

Will be interesting to see if the Tree is reduced due to target or removed.

Keep us posted, Nige.

 

 

 

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[Big 'Ammer]

25 Sept Dave.

 

Its leaning into a field on a minor road, so I doubt it will receive any attention.

 

I just saw them and pulled up a snapped the pics.

[Arob]

Adding these pics here to make them easy to find. (posted a similar example here http://arbtalk.co.uk/forum/showthread.php?t=3329&page=2).

 

Inonotus hispidus is known to result in brittle fracture on Ash, however when I wanted to find pics of brittle fracture I couldn't find any, came across another possible contender today but cannot say for sure that it is brittle fracture but would welcome any feedback.

[ScottF]

It looks more like a fracture due to wood that's been laid down in an extremely disfunctional way to me. Ash fibres are usually laid down long and straight and these are all over the place, maybe from a long-standing canker or other disfunction at this point. They say that basterial canker of ash doesn't weaken wood, but I reckon it must enentually, as maybe seen here.

Apart from being irregular, the wood looks ok, not discoloured or anything.

Really interesting shot.

[Bundle 2]

Looks like " failure "....machanical weakness?

 

Any pics of the fallen piece atall??

[Arob]

Unfortuately the piece which had fallen into a recently ploughed field had been largely removed (I couldn't find the corresponding end).

Certainly it has unusual irregular grain and this will have affected it's strength, and the sharp edge that was left was the first of this kind that I've seen; couldn't explain why that had been left like that.

However, there does appear to have been a different type of failure on the side with the fruiting body (more of a shearing of fibres) unlike the tearing side which appears to have retained fibre strength (with fibres intact and failure between fibres).

Have you seen the pics from the other thread? There too, it seems there was a partial loss of strength with probable shearing of affected wood and tearing of that wood which appeared to be structurally unaffected.

 

This is only a theory; happy for you to test it.

[MattyF]

inonotus is a white rot any failure due to it would be clearly more visable in the pics ....unless i need my glasses .......

[Arob]

I take your point Matty, but could you expand? What would you expect to see that you can't?

Have you seen the pics on the other thread?

 

What I am suggesting is that the failure isn't entirely attributable to inonotus, however, as mentioned before there does look to be different types of failure within the branch, if you look at the other thread you will see an even clearer example of something which, to me, appears to have distinct and separate types of failure.