Bleeding canker on oak?

[David oakman]

I found this today on an oak tree it is hard to see on picture two but it was running like a water fall and smells just like the horse chestnut canker.

[Lee Winger]

looks like baterial wet wood to me no big deal

[gmanntpo]

I second that!! Bacterial wetwood... Don't forget there are many pathogens that cause stem exudation...

[gmanntpo]

... a final note, the exudation from Horse Chestnut Bleeding canker has no odour. If you recognise the smell, that yeasty, fermentation smell, that it is likely that its the bacterial wetwood that you have found on H/C's before. It is a common site on H/C's and there's debate on if its bad/neutral or actually helps the tree health by creating an anaerobic state where fungi cannot live...

[Mark T]

Was the Oak in decline at all?

 

It could be Accute Oak Decline (AOD) which is becoming more and more common according to Forest Research who recently held a meeting on the 'outbreak'.

 

"Key symptoms include crown dieback and decline, and many of the effected trees have extensive stem bleedng" - Article in Chartered Forester Summer 09

[David oakman]

Well thank you, you have answered one question. I have got a HC with what i thought was BC but it stinks but lee it seems to be a very big deal as all the bark is falling off and it seems to be girdling the tree getting worse every year:001_smile:

[gmanntpo]

Hi David

 

In that case you probably have a HC with bacterial wetwood and bleeding canker...

 

Saw one the other day with a contractor... Pretty much the same situation you have described.

 

Nevertheless he was confused with the canker & wetwood so it is important to know the differance.

 

Cheers mate!