Oak tree fallen branches - diseased or rotted?

[Bearded Munch]

Looks like water had got in like this oak we had to fell.

[Tony Croft aka hamadryad]

the black stain is almost (i said almost) certainly bacterial wetwood, bet it stank, and doubt it was forseable IMO

[JonnyVine]

As a consultant, I would have to agree with Tony Sorensen that the best way forward with this is to seek the advice of a profesional arboriculturalist.

[treeseer]

Decay from included bark combined with an overextended limb structure. Whether or not it was visible or should have been noticed pre-casualty depends on several factors, like the scope of previous work etc.

 

I would not want to be held responsible for not probing each and every dodgy fork.

Definitely hard to say what the previous guy should have seen or done--Golden Rule applies here.

 

Certainly most of the defects look internal, and the storm was a primary cause of failure. "Sudden limb drop" is doubtful here, as it does not apply to tearouts.

 

"Overextension" recently added to ISA's TRAQ training; somewhat controversial as it's not always easy to identify.

Edited June 22, 2013 by treeseer

[Paul Cleaver]

bacterial wetwood is often associated with cracks - looks like a combo of some wind and a crack have resulted in the limb failure

[treeseer]

If it's bacterial wetwood in that fork, would there be such a profusion of adv roots in there?

[Paul Cleaver]

If it's bacterial wetwood in that fork, would there be such a profusion of adv roots in there?

 

you are referring to bearded munches post?

[Paul Cleaver]

Hi

 

First time post here so apologies if in the wrong place.

 

I have attached photos of branches that fell from an oak tree onto a car causing considerable damage. The tree was inspected by a tree surgeon 3 months prior and no issues were reported.

 

The branches appear to be blackened inside and I was wondering if someone could tell me whether this is some kind of disease of rot that has caused the branches to break and fall?

 

If so, should this have been apparent at the time of the inspection?

 

Thanks in advance for any assistance.

 

Regards

 

Russell

 

Hi Russell - what type of soil is the oak on - is there any history of previous branch failure from this Oak or other Oaks in that area

[David Humphries]

Hi Russell - what type of soil is the oak on - is there any history of previous branch failure from this Oak or other Oaks in that area

 

 

Russell's not been on the site since he posted this thread last December, not sure you'll get a reply.

 

 

 

 

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[Paul Cleaver]

Russell's not been on the site since he posted this thread last December, not sure you'll get a reply.

 

 

 

 

.

 

oh bugger:laugh1: