. American forestry. Forests and forestry. 3Raoge ot= ??' ?. w* - .^t-,..r Tree ^cxs^ane'^ D«srrro+ci jPrac+.colly CorT>pte+e In/'ecl-roo ^^Gcoei-al lr>f«c+ioo IrrTte^rl-ion 25% "to 50'/- ^ ^^\n-fa<=rlan I'/.te 25*/i : 1 153^ 5ccr++ertcJ Irrfec+ioor^ jM MAP SHOWING RANGE OF THE CHESTNUT TREE AND COM- PARATIVE PERCENTAGE OF THE CHESTNUT BARK DISEASE. FIGHTING THE CHESTNUT TREE BLIGHT By Oliver D, Schock ^;^!::;;'HE Pennsylvania Chestnut Tree ^ J Blight Commission stafif of em- ^^^ployes numbers about two hun- dred persons, including the executive force, special, investigators, dis
. American forestry. Forests and forestry. 3Raoge ot= ??' ?. w* - .^t-,..r Tree ^cxs^ane'^ D«srrro+ci jPrac+.colly CorT>pte+e In/'ecl-roo ^^Gcoei-al lr>f«c+ioo IrrTte^rl-ion 25% "to 50'/- ^ ^^\n-fa<=rlan I'/.te 25*/i : 1 153^ 5ccr++ertcJ Irrfec+ioor^ jM MAP SHOWING RANGE OF THE CHESTNUT TREE AND COM- PARATIVE PERCENTAGE OF THE CHESTNUT BARK DISEASE. FIGHTING THE CHESTNUT TREE BLIGHT By Oliver D, Schock ^;^!::;;'HE Pennsylvania Chestnut Tree ^ J Blight Commission stafif of em- ^^^ployes numbers about two hun- dred persons, including the executive force, special, investigators, district agents, field or county agents and scouts. With additional expert helpers their work is being done in a syste- matic and thorough manner, and it is ijelieved that tlie immensely valuable I'tative chestnut in Western Pennsyl- vania can be saved from extermination by the well-directed efforts of the Com- mission, together with the willing co- operation of timber owners and farm- ers. East of the Allegheny mountain range and in eastern and southeastern Pennsylvania, the chestnut blight has been especially virulent, causing very heavy damages. Its spread during the past summer was both rapid and ex- tensive, many new fields being reached by the blight spores. Just how these disease-bearing spores are disseminated is the same puzzling question, and this subject is now receiving most careful attention. Whether the winds, birds, rodents or insects are responsible, or whether there is a joint responsibility on the part of these various agencies or elements, will soon be determined through the medium of the interesting investigations in progress at the Uni- versity of Pennsylvania, Emilie, Mount Oretna, Charter Oak, Martic Forge, Connellsville and other points of ob- servation. The theory that the wind carries the infection quite readily has been advanced by those who noted the rapid increase in the number of in- fected trees that occupy an elevated plateau, located near Haml:)u
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
