. Diseases of economic plants. Plant diseases. 120 niSEASES OF ECONOMIC PLANTS which spreads the spores and furnishes moisture enough to allow them to germinate, followed by a dry spell, best favors the development of this disease. The use of the Bordeaux mixture has proved very satisfactory. Apply about every ten days during the early growing season; more frequently if necessary to replace any poison washed off by the rain. Wood rot (Schizophyllum commune Fr.). — Small white specks, the sporo- phores, appear upon the limbs and trunk in early summer.^ In the au- tumn they are well developed an
. Diseases of economic plants. Plant diseases. 120 niSEASES OF ECONOMIC PLANTS which spreads the spores and furnishes moisture enough to allow them to germinate, followed by a dry spell, best favors the development of this disease. The use of the Bordeaux mixture has proved very satisfactory. Apply about every ten days during the early growing season; more frequently if necessary to replace any poison washed off by the rain. Wood rot (Schizophyllum commune Fr.). — Small white specks, the sporo- phores, appear upon the limbs and trunk in early summer.^ In the au- tumn they are well developed and abundant; white and very hairy, 1-3 cm. in diameter, usually attached on one side with the margins incurved. The gills are white, woolly, branched, deeply split along the edge, and revolute. The affected wood is brittle and penetrated b3^ black lines. Apparently this disease starts in roots injured by tools during Fig. 53. — Schizoph, commune, frequently the causal fungus of wood rot of cherry and other trees. After Atkinson. PEACH Brown rot, mold (Sclerotinia frudigena (Pers.) Schrcet.). — Probabl}^ no other disease is so destructive to peaches, plums, and cherries as is the brown rot, which attacks the fruits as they approach maturity, turning them brown, soft, and useless. Aside from injuring the mature 1 Heald, F. D., Neb. Agr. Exp. Sta. Rpt. 19, p. 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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