Best way to keep the males from rubbing is to just loosely wrap bird net mesh around the grove or just where they have access to it. They won't want to have their antlers caught up in it. Give it a try I know it keeps those darn bucks away from some of my plants.
They seem to like trees/shoots of medium small slze for that rubbing. They hardly ever rub on mature culms, of course if they did, it would not matter around here. Saw a buck about to do that to one of my oriental pears the other day so I hissed out the window and it took off.
When we plant trees for customers with deer on their yards, we attach some burlap to a few branches and soak with deer off or bobex. This has worked well even in heavy deer traffic areas.