Heterobasidion annosum

[John Hancock]

I’ve known about this tree for a while. Its on a nature reserve with little to no target, so I’m happy to leave it be.

 

It’s a white rot, effecting the stem base and roots.

Hosts – Conifers and broadleaved trees (in this case. Ash)

 

You often see ‘bottle-butt’ on effected trees, developed in response to the increased flexure of the wood.

 

Consequence – Ductile fracture, windthrow.

[John Hancock]

There you can see the 'bottle-butt' formation on the same tree.

[monkeypuzzle22]

Is the tree twin-stemmed as the picture of "bottle-butting" looks more like the formation of "ears" as described by C. Mattheck in his VTA books. The reason i think ths is that the bark ridges are prominent and seemed to be centred from, what would commonly look like a multi-stem.

 

As with the fungi, i have never heard of Heterobasidion annosum on Ash trees...strange...i believe it is more likely to be look like the formation of Kretzschmaria deusta.

[monkeypuzzle22]

But am unsure....

[monkeypuzzle22]

Not grey enough in the middles....

[sylvestris stew]

Heterobasidion annosum - in forestry it's commonly known as fomes

 

I've never seen it on broadleaves before.

 

Seen plenty damage/destruction on Scots pine!

 

Do you mind if I copy your pics to show a couple of people?

[John Hancock]

Heterobasidion annosum - in forestry it's commonly known as fomes

 

I've never seen it on broadleaves before.

 

Seen plenty damage/destruction on Scots pine!

 

Do you mind if I copy your pics to show a couple of people?

 

Not at all....here is some more detail.

[sylvestris stew]

I'm up in Inverness today, if I've time I'll nip in to a wood where it's rife and I'll get a few pics.