Tree assessment/forest pathology

[PhilBeech]

I have since found out the client got a digger in to terrace the garden many moons ago!

 

Told you compaction was an issue ;-)

[alliaria]

Again , to be more precise, the effects of the rhizomorphs and/or mycelium of a necrotrophic parasitic Armillaria species, which in invading the cambium of the oak's trunk base through the damaged roots have triggered tree species specific callus and "flat" bark formation, as also can be seen in the following photo's.

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Hi All,

Would an area of flat bark extending up approx 3m. on a Acer platanoides indicate poss. Armillarria sp. infection? No signs of rhizomorphs or mycelium,but some exudate and scaffold branch death on the same side. Perenniphora on other side but no scaffold /canopy dieback?

[Tony Croft aka hamadryad]

Hi All,

Would an area of flat bark extending up approx 3m. on a Acer platanoides indicate poss. Armillarria sp. infection? No signs of rhizomorphs or mycelium,but some exudate and scaffold branch death on the same side. Perenniphora on other side but no scaffold /canopy dieback?

 

sounds a likely culprit, but kretz also results in exudates

[Sam Thompson]

Learning a lot on this thread, thanks fellas

[alliaria]

Hi Hama,

Some photos

[Tony Croft aka hamadryad]

interesting, I assume these shots are all the same tree?

[alliaria]

Oh yes, i,m seriously thinking of removal, I assume Armillaria sp. is in there but no evidence.

[Tony Croft aka hamadryad]

No, I think your bracket is potentially Inonotus dryadeus, but its an awful photo, does seem to have a white spore print? help me out here!

 

There is a long but not necessarily large column of dysfunction and sunken bark, which in this case given the dryadeus (possible) maybe an indication that a major root was damaged or died at some stage while the tree was in its prime and growing well.

 

Armillaria is a possible, but it doesnt sit right with me here, the thinning crown could just as easily be dryads as armilaria in this case.

 

I wouldnt want to place a verdict based on these photos in any case.

[alliaria]

Hi Hama,

Sorry about the photos, it.s been positively identified as perenniphora, spore print fits.

[Tony Croft aka hamadryad]

Hi Hama,

Sorry about the photos, it.s been positively identified as perenniphora, spore print fits.

 

yes, i was just looking at it, it would seem to fit, it isnt dryadeus for sure.

 

so felling may not be needed, are there budget limitations here for defining the decay?

 

the tree looks to be adapting.