. Diseases of economic plants. Plant diseases. Cereals 289 Any method of reducing the amount of infective trash, par- ticularly old stalks near or in the fields, aids in control of this pest. Practically, this means to take out of the field and destroy all rot-infected ears and to cut in- fected stalks low and haul them away or burn them. It is still better to practice such rotation that corn will not follow corn within two years. Dry-rot (Fusarium sps). — Upon the ears this disease ap- pears as a dense, felted, white mycelium, extending between the kernels to the cob. The kernels are killed a
. Diseases of economic plants. Plant diseases. Cereals 289 Any method of reducing the amount of infective trash, par- ticularly old stalks near or in the fields, aids in control of this pest. Practically, this means to take out of the field and destroy all rot-infected ears and to cut in- fected stalks low and haul them away or burn them. It is still better to practice such rotation that corn will not follow corn within two years. Dry-rot (Fusarium sps). — Upon the ears this disease ap- pears as a dense, felted, white mycelium, extending between the kernels to the cob. The kernels are killed and their starch partly consumed. A second Fusarium characterized by a deep to red color noted on the ear when the husks are removed. The kernels are brittle and the starchy portion within is powdery. A third Fusarium disease causes less complete destruction of the ear than the preceding; often only a few scattered ker- nels are affected. The mycelium is white and sparse. A cob- rot ^^^ due to Coniosporium softens the cob without mate- rially injuring the grain. Root-rot, stalk-rot ^i"^- 504. 506, 528 first record of root and stalk-rots of IS pink. Fig. 152. — Corn mold caused by Fusarium. After Burrill and Barrett. (Fusarium sps.). — The corn was made in 1907 by. 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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