. Diseases of economic plants . Plant diseases. 200 DISEASES OF ECONOMIC PLANTS Since the spores arc spread only when they are wet, handling or disturbing the vines in any way while the. Fig. 89. — Boan rust upon leaf and pods ; note the numerous sori upon both surfaces. After Heach. dew or rain is still upon them should be avoided. Seeds already bearing the fungus, i.e., spotted seeds, should never be planted, since they not only raise sick plants,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appea

. Diseases of economic plants . Plant diseases. 200 DISEASES OF ECONOMIC PLANTS Since the spores arc spread only when they are wet, handling or disturbing the vines in any way while the. Fig. 89. — Boan rust upon leaf and pods ; note the numerous sori upon both surfaces. After Heach. dew or rain is still upon them should be avoided. Seeds already bearing the fungus, i.e., spotted seeds, should never be planted, since they not only raise sick plants,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appea Stock Photo

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. Diseases of economic plants . Plant diseases. 200 DISEASES OF ECONOMIC PLANTS Since the spores arc spread only when they are wet, handling or disturbing the vines in any way while the. Fig. 89. — Boan rust upon leaf and pods ; note the numerous sori upon both surfaces. After Heach. dew or rain is still upon them should be avoided. Seeds already bearing the fungus, i.e., spotted seeds, should never be planted, since they not only raise sick plants, . 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 work.. Stevens, Frank Lincoln, 1871-1934; Hall, John Galentine, 1870-. New York : Macmillan

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