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Author Topic: Corticosa branch failure  (Read 1322 times)
rxa
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« on: March 30, 2013, 10:26 AM »

Last year I acquired this JBP. I was confident I could improve the density of foliage and put it into a larger recovery pot (red wine box) since then the needles have opened up a lot more and I have started to see new adventitious buds forming. Cool.

The problem with the tree, apart from removing the dead moss from the trunk, is the dead lower branches. Some of the upper branches have already been pulled down to cover these. You can see the history here http://www.artisticbonsaicircle.co.uk/e001ch1.htm

Assuming the branches are completely dead grafting will not be possible, I am going to borrow a thermal imaging camera to see if this is the case.

Opening up the discussion - I think the options are
  • cut the dead branches off
  • try and hide the dead with live density - I prefer 'fuller' trees
  • train a couple of branches down from higher up and try and fake it
  • leave the dead branches alone, not sure about this otherwise I wouldn't have proposed as a problem.

I am of course open to ideas...
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fredtruck
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« Reply #1 on: March 30, 2013, 10:42 AM »

I'd leave the branches alone. The cork is what counts, and by the looks of it, you have some terrific cork going, there.
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John Kirby
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« Reply #2 on: March 31, 2013, 06:02 AM »

These can be really tough, branches can become weak and die with little notice. The higher graft and really low massive branch are hard to deal with in a traditional bonsai sense. The bringing of branches down could give a period of relief, however these branches will thicken tremendously over a decade or so.
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Jason E
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« Reply #3 on: March 31, 2013, 09:04 AM »

Maybe a pic of the whole tree? Does it need to be powerful design w/ low branches or would more of an elegant design work using what you have instead of grafting down low? Think about removing the cork on the dead branch and jinning it.
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rxa
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« Reply #4 on: June 17, 2013, 06:34 AM »

The entire tree. I decandled a few weeks ago to try and get some adventitious buds, the leggier branches desperately needed these.

John you make a really good point about the inevitable thickening and one I hadn't fully appreciated. The shohin Corticosa I own, I keep pruned very tight, close to the trunk and so this has been less of a concern. Hmm...
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rxa
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« Reply #5 on: June 17, 2013, 08:07 AM »

I decided to turn on the thermal imaging camera to see if the branches are really dead.
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Leo in NE Illinois
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« Reply #6 on: June 22, 2013, 12:11 AM »

ok, I'll bite, what does the thermal image tell you? Is that a sign of life or death?
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bwaynef
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« Reply #7 on: June 27, 2013, 03:09 PM »

Yeah, what's that picture telling us?
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John Kirby
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« Reply #8 on: June 27, 2013, 06:14 PM »

Not so much.....
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rxa
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« Reply #9 on: July 30, 2013, 07:02 AM »

The picture seems to demonstrate there is warmth in the branch, dead trees do not show up in the same way - whether the branch is still alive or not and the tree has given completely given up on it, I am not honestly sure...yet.

I had use of the gadget, which predodmanently gets used in arboriculture on a bigger stuff looking for decay or bats etc. and thought I would give it a go on a bonsai and see what happens.
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