Paris BPU utilizes the lateral pruning method developed by the International Society of Arboriculture and recommended by the Arbor Day Foundation. Lateral (directional) trimming involves cutting branches back to the trunk or major limbs. This minimizes re-growth in the direction of the electric lines, thus requiring less trimming to the tree in subsequent years. The size of the branches cut in lateral trimming may be larger than those common with topping or rounding, but fewer cuts minimize the tree’s susceptibility to decay, disease and insects. Initially the appearance may seem drastically different, but in most cases, a few months of re-growth improves the appearance.