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A compressed air tool loosens soil quickly without harming the tree, and allows workers to correct problems with roots that may strangle and kill the tree if left uncorrected.
ROOT COLLAR EXCAVATION : ($58-$100/hour if contracted, $18-$33/hour with staff) Potential savings of staff versus contractors: 43%-82% This process involves using either hand tools or a compressed air tool to remove excess soil and mulch from a tree’s roots, and then correcting any revealed root problems. It requires a modest investment of equipment and some skill, and can be done at any time of year. This procedure can save a tree’s life, preventing needless removal and replacement expenses. In 2008, Wake Forest’s contractor was paid $100 per man-hour to perform this work. Required equipment : Vehicle, shovels, brushes, saws, and chisels; air compressor, pneumatic excavation tool, and protective equipment recommended for increased efficiency. YOUNG TREE PRUNING : ($39-$78/hour if contracted, $18-$33/hour with staff) Potential savings of staff versus contractors: 15%-76% Careful pruning of young trees is critical in determining whether they grow to be tall, strong, and healthy. A few cuts made at the right time can save a tree from future death or disfigure- ment. Because most of the work is in carefully looking at the tree, it can take almost as much time for a staff member to inspect the work that a contractor has done as it does to do the work.
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