. Diseases of economic plants. Plant diseases. Trees and Timber 387 ble for its spread to distant points, to British Columbia, California, Nebraska, etc. In most of these new, distant foci, the disease has since been eradicated. In Brooklyn 16,695 trees were killed on 350 acres, and the loss in and about New York City in 1908 was placed at from $5,000,000 to $10,000,000. The total damage prior to the year 1911 is conservatively placed at $25,000,000, and may now aggregate. • *?oT /nrfcriots 'IIII tfVt^Al. IMffc r/o/¥S .^.-^ PMNse or eMtir«,u Fig. 205. — Distribution of chestnut blight in 1918.
. Diseases of economic plants. Plant diseases. Trees and Timber 387 ble for its spread to distant points, to British Columbia, California, Nebraska, etc. In most of these new, distant foci, the disease has since been eradicated. In Brooklyn 16,695 trees were killed on 350 acres, and the loss in and about New York City in 1908 was placed at from $5,000,000 to $10,000,000. The total damage prior to the year 1911 is conservatively placed at $25,000,000, and may now aggregate. • *?oT /nrfcriots 'IIII tfVt^Al. IMffc r/o/¥S .^.-^ PMNse or eMtir«,u Fig. 205. — Distribution of chestnut blight in 1918. Office of Forest Pathology. Courtesy of the twice that amount, but this is insignificant compared with the loss that will ensue in the chestnut forests of the Appala- chians. It has already caused more damage to forest trees in America than any other fungus. The same disease has been found in China, and it is reasonably certain that it was intro- duced into the United States from the Orient some time prior to 1904. This pest is vigorously parasitic on members of the genus Castanea alone, and among the species of this genus the Japanese and Chinese varieties are highly resistant. The attack occurs upon the bark through wounds, Init twigs and leaves are not directly affected. From the point of attack. 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 Stevens, Frank Lincoln, 1871- [from old catalog]; Hall, John Galentine, 1870- [from old catalog] joint author. New York, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921
