From an HOS grafting class and later the scion exchange, I came home with several newly grafted trees (scion onto rootstock). They are all in the ground, and all seem to have nice new, green buds growing above the graft. I have Lapin cherry, Williams Pride and Winochee Early apples, an asian pear and a european pear.

Question: for the ones that have more than one bud above the graft, When do I choose which to save as the new trunk and thus prune the others off? Do I want them to grow several inches, or grow a year, or just pluck all off but one right now, in the growing bud stage?

Thanks!
Brian in Portland, OR