. A treatise on pruning forest and ornamental oo, that trunks so treated attained a largersize and a greater value in a given time than thosewhich, under similar conditions of growth, had beenallowed to retain all their badly placed regret in this connection to differ from so eminentan authority as de Breuil, who gives the followingrule : Amputations must be performed in such amanner that the diameter of the wound shall notexceed that of the end of the branch. Such apractice must, I believe, be dis-astrous, for whenever a branchof large size is amputated in tliisway, it is e
. A treatise on pruning forest and ornamental oo, that trunks so treated attained a largersize and a greater value in a given time than thosewhich, under similar conditions of growth, had beenallowed to retain all their badly placed regret in this connection to differ from so eminentan authority as de Breuil, who gives the followingrule : Amputations must be performed in such amanner that the diameter of the wound shall notexceed that of the end of the branch. Such apractice must, I believe, be dis-astrous, for whenever a branchof large size is amputated in tliisway, it is evident that a cavityin the trunk of the tree willsooner or later appear. Disadvantages of the Common Sys-tem of Pruning. — As descendingsap alone forms the new bark andwood which heal over a wound, it follows that, ifa cut is made in the manner represented by theline A B (Fig. 5), the new growth cannot coverover the lower part, B C, which is cut off fromcommunication with the leaves; so that the woodincluded in the lines A B, AC, not being covered. 12 TREE PRUNING. with a new growth must soon begin to decay, and intime destroy the trunk of the tree (Fig. 6). Ex-amples of this bad method are very common. Eachamputation of a branch produces a cavity, and thetree soon becomes entirely decayed. In view of suchdestruction, it might seem, perhaps, that branches ofa certain diameter cannot be safely amputated. Thatthis is an erroneous idea will be easily seen ; and it isonly necessary to make the amputation even with thetrunk, and then cover the wound with coal tar toavoid all bad Iesults. Althoughwounds caused by the amputationof small branches heal over in spiteof the faulty methods of pruninggenerally employed, such opera-tions are, nevertheless, attendedwith considerable danger to thetree. Protuberances are formed^. „ ^ . ^, on the trunk at the points where Fig. 6. — Decaying Oak, ^ showing the effect of ampu- tlic branclics liavc bccu cut, and tating a branch in such a
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpruning, bookyear1906
