Thus, root pruning of a tree with a trunk diameter of two feet should be done no closer than six feet from the trunk. Make all cuts even farther from the trunk for trees which are judged intolerant of root pruning. When root pruning mature and intolerant trees use a stump grinder to level the offending roots. Grinding produces less damage than indiscriminate root pruning. After grinding the offending roots, add coarse gravel as a base for a new sidewalk or pavers.
Root pruning machines and vibrating plows cause less damage than do trenchers and backhoes.
Many trees intolerant of root pruning exhibit problems with windthrow following pruning. Because trees can experience tremendous damage following root pruning, have the trees inspected by a certified arborist prior to pruning. He or she can help predict how the trees will respond to the procedure. When contemplating tree planting make sure and consider all aspects of the trees location. Look up for power lines, down for underground lines, and around for potential trouble spots.