V.T.A images

[sean]

Large crack running down main stem on Oak. Cause?? What are your thoughts?

 

20% reduction all over....heavier on right hand side carried out last week.

[White Noise]

Vindaloo Take away ?

 

Sorry I use a V A on tree inspections . ( Visual Aid ) Binoculars

[Tony Croft aka hamadryad]

Just wondering as the second rule of VTA is [my emphasis in bold]

 

"If a defect is suspected on the basis of symptoms, its presence or absence must be confirmed by a thorough examination."

 

Now I agree, on the balance of probabilities, there are likely to be internal cracks relating to those helical ribs but I would have to follow the VTA process before making recommendations.

 

Nice pic though.

 

LMAO, 100% likely!

 

How on earth, why? would you doubt it? do you REALLY want to charge for a DETAILED assesment of this defect?

 

[Tony Croft aka hamadryad]

Large crack running down main stem on Oak. Cause?? What are your thoughts?

 

20% reduction all over....heavier on right hand side carried out last week.

 

Well it isnt easy from a photograph! an old pollard? hatfield?

 

cause is an old stem loss, probably summmer drop as it isnt a deep wound, this has resulted in dysfunction deep into heartwood, and death of the cambium below the initial wound. dessication and enbrittlemnet of the heart is the cracks significant cause with stress.

 

but the limb to the right is likely to pull that crack and split the whole tree apart, lightening the load is going to help no end. i might consider a brace sytem above the main trunk. I dont like those steel ties round trunks to avoid split/seperation of main trunk. Retrenchment program is advisable, though suspect its a low target zone? retrenchment to a more squatt form is the way to go, over a protracted period, and lightly as the tree looks to have little vascular support.

Edited December 29, 2009 by Tony Croft aka hamadryad

[David Humphries]

Large crack running down main stem on Oak. Cause?? What are your thoughts?

 

20% reduction all over....heavier on right hand side carried out last week.

 

Is this a Paul Muir spec Sean?

 

Have you got an after shot?

 

 

 

What part of Richmond is it, any idea on what risk zone it's in?

 

What happened to the arrisings?

 

 

 

Cheers

 

D

 

 

.

[Tony Croft aka hamadryad]

just so there is a pic on the page

 

 

is that epping bart?

 

some nasty stazi ears there mate! multiple inclusions, hard to quantify Time wise but certainly up for a loss of major limbs.

[Dean Lofthouse]

Large crack running down main stem on Oak. Cause?? What are your thoughts?

 

.

 

 

I think it may be a weak lightning strike if that makes sense, which travelled down a broader section of the stem, killing off the cambium layer and leaving a structural weakness in the stem fibres following its track.

 

Either that or a Gnome could have pee'd on the root, gnome pee is very acidic and it will have tried to compartment that section off, you can see the healing of the cambium layer in one of the pics

[David Humphries]

some nasty stazi ears there mate! multiple inclusions, hard to quantify Time wise but certainly up for a loss of major limbs.

 

Posted these a while back on........

 

http://arbtalk.co.uk/forum/tree-health-care/7764-big-ears.html

 

.

[Bart]

is that epping bart?

 

some nasty stazi ears there mate! multiple inclusions, hard to quantify Time wise but certainly up for a loss of major limbs.

 

Its in Cheshire, and next to a B road. Had Mike Ellison looking around the estate before chrimbo.

[Ian Leach]

Dean i think you second choice is the more likely suspect.