What's this on this Oak?

[jrose]

Hi all,

 

Been asked what this is on an Oak, and I'm not quite certain - trying to work out what it is, can anyone help please?

 

Red on bark, and apparently last year it was well before all the other Oaks in the area in losing its leaves in the autumn

 

Thanks,

Joe

[Tony Croft aka hamadryad]

is it Quercus cerris

[Tony Croft aka hamadryad]

There has been a post driven in over if not into roots, and severe soil level changes.

 

the staining may be from past activity (bacterial wetwood) more likey on cerris than robur but not exclusive by any means.

[APC]

Not lichen then?

[Paul Cleaver]

looks like a rust type fungus??

[Paul Cleaver]

http://arbtalk.co.uk/forum/tree-health-care/48699-looks-like-red-rust-coloured-discolouration-oak.html

[Paul Cleaver]

http://arbtalk.co.uk/forum/tree-health-care/48699-looks-like-red-rust-coloured-discolouration-oak.html

 

doesn't look like classic symptom - but its as close as I can find

 

I hope its something else, something benign

[treeseer]

That AOD paper is, with all due respect, bollocks. The only treatment suggested is felling!

[Paul Cleaver]

That AOD paper is, with all due respect, bollocks. The only treatment suggested is felling!

 

yes I wouldn't fell until the tree is well into decline

[Tony Croft aka hamadryad]

That AOD paper is, with all due respect, bollocks. The only treatment suggested is felling!

 

firstly, its a family forum, so a mod will i am sure soon modify that, as far as treatment is concerned it is all a matter of considerable research. Something I am also involved in but am unable to elaborate on at this time.

 

The vectors are as yet unknown, but I recently located some very young oaks infected with AOD/bleeds and very obvious/strong woodpecker sap sucker associations. Recent plantings within a known AOD site.

 

Dont be so judgmental unless youre going to show us EXACTLY what your issues are with the paper and why.