Polyporus squamosus - extensive white rot.

[omahaalex]

thats some serious decay

[AlvinD]

A few shots I had came across last month on Acer and Ash stump...

[AlvinD]

One more i forgot about it was around 15 inch across approx.

[David Humphries]

One more i forgot about it was around 15 inch across approx.

 

Nice shots, did you work on any of these trees?

 

 

 

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[AlvinD]

Unfortunately I didn't David these photos were just passing by.

[Crazy Cutter]

I know this has nothing to do with polyporus but would value all your opinions?

 

Have been to look at a young N. Spruce, mature White Poplar and youngish (30 years) Ash all have snapped at around 3m. Located in different parts of Norfolk so 20 miles at least between sites. No signs of fungus or rot. We had a fairly major gale last week but what could cause the failure?

[John Hancock]

I’ll have to hang a picture round that Ash tree ‘No Photos Please’ – I’m well aware of the decay on that particular tree, we gave it a crown reduction (30%) three years ago and I would have liked to reduce it again this year and retain it. We have another Ash with Dryads in the park so the plan is to assess both trees this week. I’m loathed to remove any but suspect their fate may already be written…..

[Tallgrass]

Reading this thread to try to assess the likelihood of polyporous (now known as cerioporous squamosus) creating extensive white rot decay on this sycamore. Great original post - thank you. This sycamore is a roadside veteran with a decay cavity at the base of one of the stems, the same stem which has polyporous on it at approx 2m height (right hand limb). I'm pretty convinced it will only be associated with dysfunctional tissue but.....it's next to a road. The same stem also has another small cavity high in the canopy. 

I intend to decay detect with the resistograph at the height of the polyporous to assess wood strength. Initially wasn't too worried but now I've seen your photos Raffle....I'm thinking again. At the very least a reduction to the limb in question, retaining the upper cavity habitat, might be required. Anyway it's a privately owned TPO'd tree so not up to me to do the work, but convince the owner to.  Any feedback/thought would be greatly appreciated.

[treeseer]

As long as woundwood is continuous and reasonably vital, strength loss may be minimal, so I wouldn't reduce a lot.

[scotspine1]

On 03/01/2012 at 16:11, David Humphries said:

the decay.......

 

 

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attended to this the other day David, biggest Sycamore failure due to Dryad’s I’ve seen, the rot was extensive. The condition and consistency of the heartwood was essentially sponge. Not seen Sycamore timber decimated like that before.