. Diseases of economic plants. Plant diseases. Small Fruits 115 colored area, hyphae may be seen. Serious defoliation often results. Bordeaux mixture should be used: five applications at ten- to fourteen-day intervals, beginning as soon as the leaves open. Anthracnose ^^- (Pseudopeziza ribis Kleb., Gloeosporium). — The leaves, fruit stalks, berries, and canes are affected. Usually the disease is not present to great extent, but a few serious outbreaks have occurred, notably in central New York, in the Hudson River region, and in Oregon. It has. Fig. 57. — Currant anthracnose. Alter Stewart and
. Diseases of economic plants. Plant diseases. Small Fruits 115 colored area, hyphae may be seen. Serious defoliation often results. Bordeaux mixture should be used: five applications at ten- to fourteen-day intervals, beginning as soon as the leaves open. Anthracnose ^^- (Pseudopeziza ribis Kleb., Gloeosporium). — The leaves, fruit stalks, berries, and canes are affected. Usually the disease is not present to great extent, but a few serious outbreaks have occurred, notably in central New York, in the Hudson River region, and in Oregon. It has. Fig. 57. — Currant anthracnose. Alter Stewart and Eustace. also been noted in Ohio, Iowa, New Jersey, and is probably often present to a slight extent in other states. It is less common on gooseberries. In a severe outbreak the leaves first become covered with small, dark-brown spots, change to yellow, and soon fall. By the time the fruit has ripened, practically all of the leaves may be lost. Upon the leaf stalks, also upon the fruit, stems, and canes, the disease appears as little, black, sunken spots. On the berries the spots are circular and black, much resembling fly specks. The causal fungus probably winters upon the canes, ready to initiate the spring 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, bookdecade1920, bookyear1921
