. Principles of American forestry . Forests and forestry. 120 PRINCIPLES OF AMERICAN TORESTRY. their branches removed from the trunks to their final height, are likelj' to make too much growth at the top for the trunk to support. Abetter way is to remove a part of the lower branches and shorten back in summer those that are to be removed later; by such treatment a lar<^e part of the strength of the tree goes into the top without increasing the size of the lower branches, which may be removed in a year or two with- out injury to the tree. 3. After pruning, paintthe woun
. Principles of American forestry . Forests and forestry. 120 PRINCIPLES OF AMERICAN TORESTRY. their branches removed from the trunks to their final height, are likelj' to make too much growth at the top for the trunk to support. Abetter way is to remove a part of the lower branches and shorten back in summer those that are to be removed later; by such treatment a lar<^e part of the strength of the tree goes into the top without increasing the size of the lower branches, which may be removed in a year or two with- out injury to the tree. 3. After pruning, paintthe wounds with good white lead paint, to keep the wood from decaying and the iu-. FiG. 34.—Showing how to make the cut in pruning large branches. 'J"he upper cut, all made from above, permits the branch to split down. The left cut, first made partly from below, prevents splitting down, (.\fter Goff.) juries from becoming permanent. This is not so neces- sary on very hardy trees as on those that are somewhat tender. 4. Where branches rub together, it is. generally best to remove one of them. 5. Where bad crotches are being formed by the de- velopment of two leaders, severely check the growth of () thus throwing more sap into the other and making it the leading 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 Green, Samuel B. (Samuel Bowdlear), 1859-1910. New York, J. Wiley & Sons
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