. Managing the family forest. Forest management; Woodlots. MANAGING THE FAMILY FOREST 21 the trunk is small in diameter, the wood will grow over the wound and produce clear-grained wood outside of the core. Not all trees respond favorably to pruning: Some species will sprout again where a live limb was cut off. Only fast-growing trees should be pruned. On slow-growing trees the pruning takes so long to pay off that the returns are comparatively small. A dense stand of timber should first be thinned to insure rapid growth—then pruned. The number of crop trees to be pruned per acre varies by spe
. Managing the family forest. Forest management; Woodlots. MANAGING THE FAMILY FOREST 21 the trunk is small in diameter, the wood will grow over the wound and produce clear-grained wood outside of the core. Not all trees respond favorably to pruning: Some species will sprout again where a live limb was cut off. Only fast-growing trees should be pruned. On slow-growing trees the pruning takes so long to pay off that the returns are comparatively small. A dense stand of timber should first be thinned to insure rapid growth—then pruned. The number of crop trees to be pruned per acre varies by species, site, and size of the product. Keep in mind that the only trees that need to be pruned are those that are to be retained as final sawtimber or veneer crop trees, usually less than 100 to the acre. The tree should be 3 to 10 inches in diameter at the first pruning. At this age cuts heal rapidly. The cuts should be very close to the trunk—in fact it does not hurt to scratch the bark of the main stem in order to get a close cut. Stubs should never be left extending from the trunk. Generally, up to one-third of the live crown may be pruned at one time, provided that at least one-third of the total height of the tree remains in live crown. Pruning in two operations, several years apart, may be desirable in order to get at least one clear 16-foot Pruning should be done preferably in the fall or winter, usually with a saw or pruning shears—never with an ax. Special pruning saws are available; these may be attached to long handles to reach 17 or 18 feet, thus providing for a 16-foot pruned log above stump height. Ladders are sometimes F-470999 Undesirable trees occupy much of the space in this Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mark, Gordon G. , 1910-; Dimmick, Robert S. , 1
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