. A treatise on pruning forest and ornamental F OLD WOUNDS. — CAVITIES INTHE TRUNK. —THE REMOVAL OF SHOOTS. Bark once injured or loosened can never attachitself again to the trunk; and whenever wounds,abrasures, or sections of loose bark exist on the trunkof a tree, the damaged part should be cut awaycleanly as far as the injury extends. Careful personshave been known to nail on to a tree a piece ofloosened bark, in the hope of inducing it to growagain, or at least of retaining on the young wood itsnatural covering. Unfortunately the result producedby this operation is exactly opposite
. A treatise on pruning forest and ornamental F OLD WOUNDS. — CAVITIES INTHE TRUNK. —THE REMOVAL OF SHOOTS. Bark once injured or loosened can never attachitself again to the trunk; and whenever wounds,abrasures, or sections of loose bark exist on the trunkof a tree, the damaged part should be cut awaycleanly as far as the injury extends. Careful personshave been known to nail on to a tree a piece ofloosened bark, in the hope of inducing it to growagain, or at least of retaining on the young wood itsnatural covering. Unfortunately the result producedby this operation is exactly opposite to that decaying wood and bark attract thousands ofinsects, which find here safe shelter and abundantfood ; and, increasing rapidly, hasten the death of thetree. In such cases, instead of refastening the loosenedbark to the tree, it should be entirely cut away, carebeing taken to give the cut a regular outline, espe-cially on the lower side ; for, as has been alreadyexplained, if a portion of the bark (A, Fig. 49), 52 TREE even if adhering to the wood, is left without directcommunication with the leaves, it must die anddecay. A coating of coal-tar should,of course, be applied to such wounds. Loosened Bark. — It is necessary tofrequently examine the lower portionsof the trunk, especially of trees begin-ning to grow old ; for here is oftenfound the cause of death in many trees,in the large sheets of bark entirely sepa-rated from the trunk. This conditionof things, which often cannot be de-tected except by the hollow sound pro-duced by striking the trunk with theback of the iron pruning knife, arrests the circulationof sap, while the cavity between the bark and thewood furnishes a safe retreat for a multitude of in-sects, which hasten the destruction of the tree. Thedead bark should be entirely removed, even should itbe necessary in so doing to make large , too, should be given to injuries to thebark caused by the fall of neighboring t
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpruning, bookyear1906
