Attention david! and robarb

[Tony Croft aka hamadryad]

Check this out, our mate treehunters shot, posted it to me on facebook wanting to know why the two stems had different colourations.

 

I told him it was due to the cord constricting the cambium the limb no longer paying its way and the backing up of nutrients water forced a new shoot to take over, hence a new smooth youn limb next to a choked old limb rough with age. as well as the white lichen liking the younger bark chemistry, texture.

 

BUT, why I am posting? thought you might both like this from a potential use point of view, experiments to be had me thinks?

 

retarding leaders to force lower growth retrenchment? wot wot!

 

[RobArb]

experiments to be had for sure not me thinks:thumbup1:

 

What tree is this (Quercus sp.?) and where in the country? Does it have any "neighbours" of the same species in similar condition/size etc?

 

Not actually got this technique in my list of variables.... I have now:001_tongue:

 

Cheers for that tony, i owe you one this time:laugh1:

[RobArb]

ps, is there any more pics?

[Tony Croft aka hamadryad]

Oak with Birch epiphite in bkgrnd | Flickr - Photo Sharing!

 

Rob McBride | Facebook

[Tony Croft aka hamadryad]

Imagine we have an over mature, compromised tree, we want to save it, pruning is needed but would probably be too severe to not stress the tree and do more harm than good, so encourage it to shut down the leader in a natural slow manner and force shooting at the constriction point, also allowing barriers to form ! ohhhhh yessss me likey lots

 

this one has got legs like a millipede!

[RobArb]

Ah, its in Bala:001_huh:

 

Drove through there last week on my way home:laugh1:

 

As far as my research goes, i'm collecting previous data (although there isn't a great amount) and trying to find the perfect trees to "experiment" on

 

The photo of this tree has helped a lot:001_cool:

[RobArb]

Imagine we have an over mature, compromised tree, we want to save it, pruning is needed but would probably be too severe to not stress the tree and do more harm than good, so encourage it to shut down the leader in a natural slow manner and force shooting at the constriction point, also allowing barriers to form ! ohhhhh yessss me likey lots

 

this one has got legs like a millipede!

 

The whole restoration/retrenchment pruning subject needs looking at full stop, and its things like this that prove it happens naturally anyone so why not mimic the trees natural processes:thumbup1:

 

And IMO urban and street trees are ideal subjects especially when (most of the time) people are trying to save our urban forests

[RobArb]

and that is a truly magnificent oak that i've missed out on (for the time being)

[RobArb]

Interestingly, look at the second to last image, the Birch has also put out two new shoots, one on the main stem and one on the first limb to the left.

 

be interesting to see if there was any "biotic/abiotic processes" involved that stimulated this growth?

[David Humphries]

Only got to see this today.

 

Concept is worth exploring for sure.

 

Possibly preferable to ring barking with a chainsaw, which is the way we are going currently.

 

Would be interesting to gauge the transference of water/nutrients etc......

Wonder if Glynn Percival has worked around this type of experiment.

 

 

 

 

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