buckhorning
n.— «Your tree might be making a last stand, but let’s give it a little hope for survival.…When late winter arrives, consider a much more severe pruning, often called buckhorning. Use this pruning technique to take all the limbs back to major healthy portions several inches or more in diameter. What’s usually left is a bare frame of a tree often only 6 to 8 feet tall.» —“Even tough chinch bugs can be killed” by Tom MacCubbin Orlando Sentinel (Florida) Nov. 3, 2007. (source: Double-Tongued Dictionary)