That Link is** not** Air Layer ! tt’s my discription how to propagate Peach by Cuttings!
Air Layer Peach is very successful by me.
Keep in mind: Peach on its own roots is prone to a high lime content in the soil! pH 6.5 is very conveniently.
Use the same application as with other tree crops, just girdling the limb part of the way around instead of fully !!
June is the best time of the year for this Job. Get plenty of leaf to the branch !! they need Sunshine!
Use a good hormone treatment. keeps medium moderately moist, airy environment beware of too wet!
Keep the root zone dark in shadow.( overheating)
Check in the autumn root formation, transplant in Spring.
