Paulpash
Masterpiece
Except Arakawa 
Thread grafting during growing season?
- Thread starter Lars Grimm
- Start date
MACH5
Imperial Masterpiece
Except Arakawa
Yes.... an important note here! Paul is referring to my comment about stating that root grafts are an exception (post17). Although they are, it is also important to know that arakawa is indeed a unique case. Otherwise you’d end up with a tree with rough as well as smooth bark roots!! No bueno!
Paulpash
Masterpiece
Oleg, the leaves send carbs downwards to the roots so the top of the hole would 'receive nutrients' and callus most quickly.
I've just seen this thread. I successfully thread grafted my JM mid summer after a full defoliation of the tree. I was able to cut the #1 doner branch off at the end of the year but kept the #2 doner branch attached for a bit longer as it wasn't as vigorous. I just cut the stems back as close as I could without damaging the leaf bud and drilled a slightly bigger whole. You still need to make sure you have a bud as close to the trunk as possible to cut back to when the time comes to start building the branch and also you need to make sure that the whip is long enough so it pokes out from the main canopy of the tree otherwise it will just be shaded out and possibly fail.
June 2017:
June 2017:
bwaynef
Masterpiece
Its common sense once its pointed out, but I don't know that I've ever thought about that. Of course, I've never threadgrafted on a tree with density enough to warrant the consideration, but that's handy to keep in mind.
Paulpash
Masterpiece
The other thing is angle too. I think some forget to angle the tip upwards with either wire or the natural angle of the drill hole. This has a big impact on vigour.
