Thread Graft on a Larch

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IMG_9775.JPG it looks like I have a successful thread graft based on the thickening on the way out. For those that have had success with this do you think it would be safe to seperate now or should I wait until next year?

Threaded the graft through spring 16.
 

coh

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Will be watching this for answers (and to see how yours does after separation). I put 2 thread grafts on one of my larch this spring, they appear to be doing well but I won't even be thinking about separating until sometime next year.
 

Dav4

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If this were a maple, I'd say you'd be good to go. Honestly, I'd be shocked, based on the size difference in diameter of the scion on either side of the graft, if this hasn't taken. I'd treat it like a pine and start weaning the graft off of the donor branch. Perhaps @crust may have some advice as well.
 

ralf

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In my experience it is better to wait till you get the "thickening" on the entry as well. This will fix the thread graft firmly inside the trunk on both sides and makes more connections of the cambium.

I do the separation in few steps in the course of several weeks - removing a pieces of the branch on the entry bit by bit with the concave cutter. At the time of full separation I reduce the amount of foliage/branches on the exit side of the graft to reduce transpiration. I do avoid separation in summer while it is hot.

In your case - It seems you have some branches on the entry side of the donor branch. In a way these branches are competing with the grafted section. You can see that section with the competing branch is also thicker than the section closer to the trunk. This could be the reason there is no swelling on the entry side.

If the tree is mine I would wait till spring. Even if it looks OK now. Separation at this period could have negative impact on the level of photosyntesis and the branch could have problem during the winter in your area.

I have attached a picture of one of my larix. The lower branch - approach graft, the branch above a tread graft. The picture is from last year - the thread graft has been separated this spring.
 

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better to wait till you get the "thickening" on the entry as well
I had not considered this, you made some good points. Thank you for your tips, I think you are right on waiting until next year. It sounds like you have done a few successful thread grafts, in your experience what percentage of your attempts end up working out for you?
 

sorce

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Nice work Matt!

Being that nothing seems to be causing problems...
I would definitely wait!

You've come this far!

Nice!

Sorce
 

ralf

Mame
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@Matt The thickening on the enty part has been mentioned somewhere on the IBC by Jim Lewis

in your experience what percentage of your attempts end up working out for you?
You need a bit of technique and great amount of patience to get very close to 100% - at least that holds for larches and most deciduous trees that you can find in the area where I live. You have mastered the technique part quite well...

Some of the treadgrafts I have made I left untouched for nearly 3 years. I still have one on the prunus spinosa that has been started in spring 2015. I hope to separate next spring...:cool:
 

crust

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Looks good. I have lost through grafts(TG) that look healthy like this upon detachment--but usually, TG that looks like this are good to go and don't skip a beat. A few things I have done that may make a difference: A head of time cut all green off branch except the proper side; leave long piece of branch when you sever it, cut flush later, be sure to develop and preserve buds of new TG close to trunk but let branch tip grow unfettered in final stages, strong growth of TG assures good mending; I think spring is best severing time however one can cut everything energetic back(except TG) in late summer in preparation. I usually let sac branchlets help strengthen the new TG in the following years.
 

Drew

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View attachment 156038 it looks like I have a successful thread graft based on the thickening on the way out. For those that have had success with this do you think it would be safe to seperate now or should I wait until next year?

Threaded the graft through spring 16.

What did you end up doing with this? did you separate it? and was it successful?
 
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What did you end up doing with this? did you separate it? and was it successful?
somehow I missed this but yes I did seperate the next spring and it never skipped a beat. It is now the apex of the tree. Now I am thinking about thread grafting 3 branches on lower in hopes that at least 1 will take. It has become a bit of a project frankenstein piece but good learning material.
 
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