Power Drill grafting method
I just viewed a video with a grafting method using a power drill. A couple of years ago I removed an unproductive cherry tree and had I known this method, it would have been simple to rework to another variety.
He is starting with a ‘root stock’ that is already a good sized tree, drilling into the wood, chamfering the hole then using pretty hefty scions, trims them to proper size, exposing the cambrium. The narration is in Italian but the video makes the process very clear. There are certainly situations where this method would be appropriate and I would guess the success rate would be pretty high. It seems he had a preference for removing limbs and drilling into collar area which makes sense as that area would heal fast.
He also topped the tree and did a wedge graft at the top.
What is impressive is his results after 40 days
Innesto a foro meccanico https://youtu.be/z2XwvRKfHqA
I have a question though, for those who may have more experience at grafting than I. Normally, grafting requires dormant scions, while ‘budding’ done later in the season gets cambrium union with fresh buds. Since this method seems to ensure a lot of cambrium-cambrium contact, what is the likelihood it could be used with non-dormant scions? Seems to me it would be owrth a try.