Identifier: reportontreesoff00phil (find matches)
Title: Report on the trees of Fairmount park. A study of the trees growing naturally in the park forests and of those planted for shade or decorative purposes
Year: 1908 (1900s)
Authors: Philadelphia. Commissioners of Fairmount park. (from old catalog) Paul, Oglesby. (from old catalog)
Subjects: Fairmount park, Philadelphia. (from old catalog) Trees
Publisher: (Philadelphia, W. F. Fell company)
Contributing Library: The Library of Congress
Digitizing Sponsor: Sloan Foundation

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us poison the food of thecaterpillars. This same preparation, if applied early in thespring, will also serve to keep in check the elm beetle, a smallbut extremely active enemy of the Elm tree, which at timesdoes great damage to the foliage. The red spider appearsonly in dry weather, usually in August and September, in thislatitude, and confines its attacks to the lower sides of theleaves. The foliage of a tree infested with red spiders soonturns l)rown and becomes unsightly. Several sprayings eachseason, during the dry weather, would keep this pest in con-trol. In other words, to maintain a 40-foot Elm in the parkin good health is a perfectly practicable and possible matter,but it costs approximately the following amount of money perannum to do it: Cleaning of egg clusters in winter, approximately. . .$1.00 per treeSpraying with arsenate of lead and whale-oil soapfor tussock moth, scale, and elm beetle—three sprayings at 60 cents each 1.80 Banduig the tree in May . 10 Total $2.90 10
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White Oak tree in West Park killed by scale. Frequent sprayings wouldwithout doubt have saved it, but no funds were available. 11 This, of course, takes no account of the pruning requiredevery second or third year, which costs approximately $1.00per tree of average size. These figures are reasonably ac-curate only, but are low rather than high, taking all conditionsunder consideration. Frost & Co., of Boston, and ThomasMeehan & Co., of Philadelphia, two of the leading sprayingcompanies, charged us 75 cents, plus the cost of materials, foreach spraying of a 40-foot tree, but we find the work can bedone at approximately 60 cents by our own Foresters men.As there are several thousand trees of these species in thepark, the total cost would be considerable for this work alone.Moreover, the tussock moth has begun to feed on the NorwayMaple, Willow, and Horse Chestnut, so these trees must beincluded in our list of species damaged by this plague. Turning to the Oriental Planes and the

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