Don't Strip

The third most common form of mal-pruning is over-thinning (stripping) which is caused when too many lateral branches of a tree or shrub are removed. Over-thinning includes taking off too many lower limbs (over-skirting), too many internal laterals (over-thinning) and stripping out all the laterals of tree branches leaving just foliage at the ends of the branches (lions-tailing).