Oak VTA - Professional Tree Inspection

[10 Bears]

Would you not expect to see black stains on the location as well if there is active Inonotus? I agree if fruiting bodies had been active you would likely see them on the ground too. I didn't feel this was Inonotus, but I suppose it could be due to the Sporophoric nature of Inonotus.

 

The other most obvious candidate would be Pseudomonas syringae - but there are no obvious signs of the blackened edges..

[jacquemontii]

There was no sign of any old inonotus brackets on the floor or elsewhere on the tree. These additional photos show the other side of the tree. Some dark stains emanating from the fork unions (and some unsympathetic pruning with epicormic growth). Does anyone know what causes the vertical line down the trunk? Is this a shear induced crack that has occluded?

[10 Bears]

yes you are right IMO, it looks like a partially occluded internal shear

[treeseer]

Don't they teach inspection of strengths, along with speculating on weaknesses?

 

1 What holds the tree up? How can it be strengthened?

 

2 How big is the load and how can it be reduced?

 

3 Is there active colonisation by fungi, and what is the tree's (often overcompensating) response?

 

4 re the ash, pull off the loose dead bark and have a look. Let the tree tell you what's going on; never mind the internet!

[Betula]

Based on those cracks and decayed areas I'd watch out for bats as well