Summer limb/branch drop

[sloth]

Crikey that was a close one. It's a very unusual looking tear out, no signs of wood dysfunction or decay?

[David Humphries]

....... It's a very unusual looking tear out, no signs of wood dysfunction or decay?

 

Nothing significant in the sapwood and the heart is just old discoloured dysfunctional core wood.

 

Both wood regions are very dry

 

This was a lower inner canopy limb on the opposite side and not exposed to the predominant wind load.

 

 

 

 

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[Gary Prentice]

Isn't that atypical of SBD? Failure of the union rather than distant to it.

 

I've wondered, after reading and listening to Dr Slater and the works on the formation of branch unions, how the mechanics change when a limb which was previously putting on loads of incremental growth gets pruned or overshaded and no longer produces loads of energy.

 

If the loss of energy equates to less wood formation from the limb in the union, and most of the wood in the collar is trunk derived wood, how does the mechanics change? Do the mechanics change?

 

Does the change in growth ratios begin to form a branch shedding collar to effectively get rid of an inefficient or less productive limb?

 

And sometimes I just think I need to get a life:blushing:

[David Humphries]

 

Does the change in growth ratios begin to form a branch shedding collar to effectively get rid of an inefficient or less productive limb:

 

Like over sized cladaptosis, with massive abscission pads?

 

 

Isn't that atypical of SBD? Failure of the union rather than distant to it.

 

I think I've witnessed both failure points Gary and believe it may have to do (partly) with species characteristics.

 

 

 

 

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Edited July 3, 2017 by David Humphries

[Gary Prentice]

Like over sized cladaptosis, with massive abscission pads?

Maybe, possibly, I don't really know:biggrin:

 

 

 

I think I've witnessed both failure points Gary and believe it may have to do (partly) with species characteristics.

 

.

 

You're probably correct. I more I learn the more I come to realise that there is still so much we don't know, so many theories and thoughts that we go out with from day to day and try to make the best decisions we possibly can.

[sloth]

Interesting...

[Treeation]

Another classic summer branch drop at my local park. Large horizontal oak limb failed out of large mature oak. No decay present at breakage.

[stihlmadasever]

Had a pretty sizeable limb come off a beech in one of our parks a couple of weeks back.

It had some black residue above the union.

Was this a factor in the failing?

 

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[WesD]

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Cotton pop ripped out, some of it wedged in the sycamore which was over a car park and bin store for good measure.

[Goaty]

Last 2 weeks roadside ash are in fashion in east yorks.

 

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