. Diseases of economic plants . Plant diseases. 188 DISEASES OF ECONOMIC PLANTS trance through slight imperfections of the skin at the navel end and make rotten areas under the skin. All diseased fruit should be collected and burned or buried deeply. Scab {Cladosporium elegans Penz.). — The scab has been. Fig. 81. —Scab of the sour orange. After Hume. known for twenty years, and occurs on the sour citrus fruits such as the pomelo, kumquat, and sour orange, though its presence on the last is of little importance. The disease attacks the young leaves, twigs, and fruit, and causes them to produce

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. Diseases of economic plants . Plant diseases. 188 DISEASES OF ECONOMIC PLANTS trance through slight imperfections of the skin at the navel end and make rotten areas under the skin. All diseased fruit should be collected and burned or buried deeply. Scab {Cladosporium elegans Penz.). — The scab has been. Fig. 81. —Scab of the sour orange. After Hume. known for twenty years, and occurs on the sour citrus fruits such as the pomelo, kumquat, and sour orange, though its presence on the last is of little importance. The disease attacks the young leaves, twigs, and fruit, and causes them to produce conspicuous, warty, corky. 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, 1871-1934; Hall, John Galentine, 1870-. New York : Macmillan

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Keywords: ., bookauthorstevensf, bookcentury1900, bookdecade1910, bookyear1910