. Diseases of economic plants. Plant diseases. 398 Diseases of Economic Plants lines which extend lengthwise of the leaves arfe produced by the ascus-bearing organs. Premature defoliation Fig. 210. — Cronartium ribicola on pine showing general aspect of disease. After Colley. Leaf-blight, twig-blight {Lophodermium hrachysporum Rostr.). — In Maine the leaf-blight has been noted as de- structive to a considerable number of small trees and in-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appe

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. Diseases of economic plants. Plant diseases. 398 Diseases of Economic Plants lines which extend lengthwise of the leaves arfe produced by the ascus-bearing organs. Premature defoliation Fig. 210. — Cronartium ribicola on pine showing general aspect of disease. After Colley. Leaf-blight, twig-blight {Lophodermium hrachysporum Rostr.). — In Maine the leaf-blight has been noted as de- structive to a considerable number of small trees and in-. 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