Species Specific > Trident Maple Bonsai Discussion

Trunk Chopping Trident Maples best time?

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Shane Martin:
Here in my sub tropical climate down in Northern New South Wales Australia, I have usually done my trunk chops at the end of winter, just before bud swell. Most of the time this works just fine, but have noticed a few cases of the callusing being over the top, and result in an ugly callus. This goes for trunk chops, and any large roots as well. Some of my trees are going to be ready to chop this coming winter and are quite large.... some up to 6 inches thick.
Can this technique be done safely at any other time of year?.... and should I feed or not prior to the chop process. Roots will get a chop as well.

Larry Gockley:
Hi Shane. Did you try to recess the trunk area at the cut, so that a callus would grow around the top, and not bulge so much?  I also read in a John Naka book, about making a broom style with a trunk chop. John suggested wrapping twine or tape tightly at the top of the chop to prevent a bulge. Have not tried it myself, but sounds good. Larry

bwaynef:
I'm never good on timing.  I usually ask someone before I do something I think is season-sensitive ...so I won't try to help you on that.

Check out this link that shows how to get a smooth transition from a trunk chop.
http://bonsaijournal.com/beginners-trunk-chop-101.php

Shane Martin:

--- Quote from: bwaynef on December 28, 2011, 08:45 PM ---I'm never good on timing.  I usually ask someone before I do something I think is season-sensitive ...so I won't try to help you on that.

Check out this link that shows how to get a smooth transition from a trunk chop.
http://bonsaijournal.com/beginners-trunk-chop-101.php

--- End quote ---

Thanks Larry & bwaynef.....
Larry I almost always cut at an angle just above a shoot or bud, which goes against most advice as generally a lot of people prefer the straight cut method, which I have done on a couple of trunks this season to compare methods. In the link which bwaynef supplied, (i'd come across it before.... but thanks all the same), it recommends the straight cut method also, but makes no mention of recessing the cut. I've always been concerned about water sitting on top of the flat cut, hence my reason for an angle cut..... I don't have much trouble healing these large wounds, as there is almost always a new leader getting all the energy as I remove most if not all side branches. Anyway, we're drifting off my original point, which was more a timing change for chops, rather than method.
Would mid to late Summer be a problem...... ? The trees in question are all in the ground and very healthy. Growth has hardened off. Just thinking it may be better as there is not so much energy as early spring/summer. Or have I got it completely wrong.

From the article...
Timing
The best time for most trunk chops is in mid to late spring or early summer (depending on your geographic location); after the new leaves have formed and begun to harden off.

bwaynef:

--- Quote from: Shane Martin on December 29, 2011, 12:11 AM ---From the article...
Timing
The best time for most trunk chops is in mid to late spring or early summer (depending on your geographic location); after the new leaves have formed and begun to harden off.
--- End quote ---

That's what I was thinking.  Guess I should've read the article.

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