. A treatise on pruning forest and ornamental pruning;and a dendroscope, the name suggested for a simplelittle contrivance, the use of which is shown at , may be here used with advantage. A dendroscopemay be made from a piece of thin board or card-board(a playing card answers the purpose), in which a holeof the shape it is desired to reduce the tree to has beencut (see Figs. 12, 13, 14, 15). Across the middleof the hole, from top to bottom, a piece of fine wireis stretched to serve as a guide to the eye. Holding the dendroscope at the level of the eye,with the wire opposite the c
. A treatise on pruning forest and ornamental pruning;and a dendroscope, the name suggested for a simplelittle contrivance, the use of which is shown at , may be here used with advantage. A dendroscopemay be made from a piece of thin board or card-board(a playing card answers the purpose), in which a holeof the shape it is desired to reduce the tree to has beencut (see Figs. 12, 13, 14, 15). Across the middleof the hole, from top to bottom, a piece of fine wireis stretched to serve as a guide to the eye. Holding the dendroscope at the level of the eye,with the wire opposite the centre of the trunk of thetree to be studied, the operator approaches the treeuntil the bottom of the cut falls on the trunk atthe ground line. It is easy to see at a glance withthe aid of this contrivance what operations shouldbe performed in order to reduce the tree to thedesired shape. 26 TREE PRUNING. Remembering that under ordinary circumstances,a vigorous, handsome tree must have a straight,vertical trunk and an evenly balanced head, the first. object of pruning should be to produce these condi-tions. The head, as has already been explained,should be oval in form ; the height of this, howevei; APPLICATION OF THE SYSTEM. 27 must depend on the size of the trunk and the ageof the tree when first subjected to the operations ofpruning. Selection of the Leader.—The branch most nearly per-pendicular on the trunk of the tree should be selectedto form the leader ; and it may be stated as an abso-lute rule, that whenever a branch near the top of thetree stands vertically on the trunk, or even on anyfart of the trunk, it should be preserved for the leader(Fig. 22).
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpruning, bookyear1906
