Notching is a practice of inducing a plant to grow a new branch. My I 258 fig is getting a bit tall and top heavy. I want to develop it's branching and then probably air layer the tips. I also don't want to sacrifice fruit production so I decided to notch 1st then air layer after it fruits.
This plant has 3 great strong branches. These will become my scaffolding branches for arterial branches.
Here you can see the new bud breaking where I notched it. Notches have to made above a bud where you want the new branch to grow from. This tricks the plant into thinking that the branch has been cut and so it spends it's energy into growing a new branch.