. The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use. Trees; Trees. Callusing and Repairing 91. Fig. 21. Malleable pruning shears. applied, while in spring the oozing sap of many species will prevent the paint from sticking or the tar from penetrating. If pruned in the fall, the wound wood begins to form in the early spring and is well advanced before the fungus spores begin to fly. The com- parative absence of fungus spores in late fall and the fact that the form of the tree is better visible when the foHage has left it also favors this season as co
. The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use. Trees; Trees. Callusing and Repairing 91. Fig. 21. Malleable pruning shears. applied, while in spring the oozing sap of many species will prevent the paint from sticking or the tar from penetrating. If pruned in the fall, the wound wood begins to form in the early spring and is well advanced before the fungus spores begin to fly. The com- parative absence of fungus spores in late fall and the fact that the form of the tree is better visible when the foHage has left it also favors this season as compared with the summer. Only those species, wliich, like the maples and birches, are apt to bleed freely even late in the autumn and early in spring, are best pruned in winter or late summer, although the bleeding is in the '^ main detrimental only because it prevents the paint from •*' adhering. Callusing and Repairing. We will now briefly look at the healing process, a knowledge of which will be useful to the pruner and will assist his judgment, especially as to where and how to locate most advantageously the cut in trimming, pruning, and repairing. When, in the natural order of things, a leaf falls, or a piece of bark is sloughed off, as is so conspicuously done in the sycamore, this loss of parts has been gradually prepared for and the wound is already cov- ered securely by a cork la}'er, or a temporary covering has at least been pro\'ided for by the formation of gum or resin, before this final voluntary loss occurs. When an involuntary physical injury, as the tearing ott of a piece of live bark or the breaking of a branch, takes place, a similar process of pro\iding a covering of the wound Fig. 22. — Sheep shearing 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 Fernow, B. E. (Bernhard Edua
Size: 2634px × 949px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorfernowbe, bookcentury1900, bookdecade1910, bookyear1910
