. The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. 234 THE DISEASES OF FRUITS. the winter the vines and trellises may well be treated with a wash of copper sulphate, one pound to thirty gallons of water. This use of the plain bluestone solution is of special value as a cleansing solution, and can be safely employed upon stems not leaf-bearing at the time. Last, but not least, is the use of Bordeaux upon the vines during the growing season, with cupram as the fruit nears maturity. In this way there is
. The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. 234 THE DISEASES OF FRUITS. the winter the vines and trellises may well be treated with a wash of copper sulphate, one pound to thirty gallons of water. This use of the plain bluestone solution is of special value as a cleansing solution, and can be safely employed upon stems not leaf-bearing at the time. Last, but not least, is the use of Bordeaux upon the vines during the growing season, with cupram as the fruit nears maturity. In this way there is usually ample opportunity for the removal of the lime in the Bordeaux by natural causes and the fruit will be acceptable in the mar- kets. Should the Bordeaux only be used it can be re- moved from the fruit by dip- ping in a very weak solution of vinegar. The bagging of the clusters while quite small will prevent the access of the germs and help to save the fruit, and protect them as well from the loss of the deli- cate bloom that adds to their attractiveness. The Anthracnose (^Sphaceloma ampilinum DeBy.) causes a serious disease of the grape, easily distinguished from the black rot by producing sunken spots and lines upon the new growth of canes developing a purplish border and a gray centre. The fruit spots are usually circular, and with the deep depression and reddish border they some- what resemble bird's eyes. Similar spots and patches are often found upon the main veins of the leaves. Remedies.—The distribution of this fungus is similar to that of the black rot, and the same precautionary measures there given hold good with the anthracnose, which is, how- ever, not so easily controlled by spraying as the black Fig. 290.—a Cluster of Grapes ruined by the Black Rot. (From Galloway.). 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 p
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