Remove the bark between the two cuts, but leave a ¾ inch (2 cm.) bark flap at the top of the cuts. Bend the rootstock and slip the top end under the bark flap. Fasten the rootstock to the flap with a screw and attach the lower portion of the rootstock to the tree with two or three screws.
How is Inarching done?
The method consists of uniting the selected shoot (scion) of a desired parent tree (mother plant) with the potted or transplanted seedling (rootstock) by approach grafting.
Is Inarching and approach grafting same?
Approach grafting and inarching are similar in that both involve the use of a scion which is still attached to its own root system at the time of grafting. In fact the two terms are sometimes used interchangeably. ... Both Approach grafting and Inarching usually involve large plants growing in the field.