Mcbuck58....you have mention before pruning lower limbs to develop a straight tree trunk with fewer lower branches....my question is have you ever experimented with air layering a chestnut branch? Or...have you ever tried to root a chestnut cutting? Im just curious because I have two trees with lower limbs that need pruning and one tree which I thought died but thankfully came back...except now there are three stems....want to prune two and keep center, main stem....just wondering, like with a lower limb, could I air layer the extra main stems in an effort to start two more trees?