. A treatise on pruning forest and ornamental When several branches have been developed fromone node, forming what botanists call a whorl, theyshould not all be cut away at the same time, lest thecirculation of sap be checked by the destruction ofbark (and consequently of cambium layer) over toolarge a surface. All dead and dying wood should be removed bythe workmen in descending the tree ; lichens, andother parasites which interfere with the growth ofyoung trees, should be knocked off with the backof the pruning knife ; and the Mistletoe, the mostdestructive of all parasites to tree l
. A treatise on pruning forest and ornamental When several branches have been developed fromone node, forming what botanists call a whorl, theyshould not all be cut away at the same time, lest thecirculation of sap be checked by the destruction ofbark (and consequently of cambium layer) over toolarge a surface. All dead and dying wood should be removed bythe workmen in descending the tree ; lichens, andother parasites which interfere with the growth ofyoung trees, should be knocked off with the backof the pruning knife ; and the Mistletoe, the mostdestructive of all parasites to tree life, should be APPLICATION OF THE SYSTEM. 33 carefully removed by cutting off the branch The necessity of commencing the operation of prun-ing at the top of the tree must be insisted on ; in noother way can the form proper to the tree be es-tablished or the safety of the operator disregard of this rule was followed not longago by what might have been a severe accident. Anexcellent w^orkman was about finishing the pruning of. Fi^. 27. — Pruning badly commenced. a Beech tree; two long, slender branches (A and B,Fig. 27) remained to be operated on. He cut the ^In some portions of the United States where the Americanspecies of Mistletoe flourishes, especially in the Mississippi Statessouth of the Ohio, great damage is done to different trees by thisplant. The destruction of the Black Walnut from this cause hasbecome very general, and causes serious loss in some portions ofKentucky and Tennessee. c. s. s. 34 TREE PRUNING. lower of the two branches first; the twigs on theends of the branches had become interlocked, and thebranch B, in falling, pulled down the branch A. Thisbroke under the weight of the first, and, striking theoperator on the head, inflicted a severe wound, causinghis fall to the ground, a distance of twenty or thirtyfeet. The Amputation of Large Branches. — Many of thelower branches previously shortened must afterwardsbe removed, from ti
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpruning, bookyear1906
