. The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use. Trees; Trees. Sucking Insects 141 showing variations from ten cents to ten dollars per tree.^ Of the trees of Springfield, Mass., 16,000 were sprayed at an average cost of twenty- ,.;4.^ nine cents. This cost was reduced in Saratoga, for 5,667 trees of twenty to eighty feet in height, to seventeen and a quarter , J • -n 11 vu Fig. ^i;. — "Vermoral" sprav nozzle. cents, and m Brooklyn, with ^^ ^ - steam apparatus for 8,712 trees, to twelve cents per tree, and this may be still further red
. The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use. Trees; Trees. Sucking Insects 141 showing variations from ten cents to ten dollars per tree.^ Of the trees of Springfield, Mass., 16,000 were sprayed at an average cost of twenty- ,.;4.^ nine cents. This cost was reduced in Saratoga, for 5,667 trees of twenty to eighty feet in height, to seventeen and a quarter , J • -n 11 vu Fig. ^i;. — "Vermoral" sprav nozzle. cents, and m Brooklyn, with ^^ ^ - steam apparatus for 8,712 trees, to twelve cents per tree, and this may be still further reduced by perfecting the apparatus and the organization. With hand apparatus, the cost for spraying trees up to forty feet in height may be as many cents as there are feet in height, but after that it increases more rapidly with the height. It is hardly practicable for each tree owner in a city, town, or village to provide himself with a spraying outfit, but every city, town, or even village can afford to supply an apparatus which would serve the entire community and, either at public expense or by cooperative effort, all trees could be sprayed cheaply, and in a few years the insect question would be easy to take care of, if there is also co- operation in exterminating those insects which cannot be readily reached by poison. Sucking Insects. As stated before, these poisons are effective mainly with those biting insects which de\'our their food. They are not effective, or only partially so, . with scale-insects, plant-lice, borers, as well as Curculios, ' chinch-bugs, etc., and all other kinds that suck the sap of the plants. These are best reached by a kerosene or soap emulsion, also applied by spraying, but in such a manner that the insect is struck, for they act by contact. 'Reported by A. H. Kirkland in The Shade-tree Insect Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and
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Keywords: ., bookauthorfernowbe, bookcentury1900, bookdecade1910, bookyear1910
