. Manual of fruit diseases . Fruit. APPLE DISEASES 83 — the fruiting structures of the pathogene. By late summer or fall the canker may have attained a depth of one-half an inch, a length of ten inches, and a breadth of three to four inches. Some- times two or more cankers become confluent and thus larger lesions are produced. In older cankers, the bark may drop out leav- ing a wound, al- though this may not take place be- fore the canker is three years old. The smaller cankers sometimes heal slowly by callus- formation. In other cases the wound never heals, but instead the limb is completely
. Manual of fruit diseases . Fruit. APPLE DISEASES 83 — the fruiting structures of the pathogene. By late summer or fall the canker may have attained a depth of one-half an inch, a length of ten inches, and a breadth of three to four inches. Some- times two or more cankers become confluent and thus larger lesions are produced. In older cankers, the bark may drop out leav- ing a wound, al- though this may not take place be- fore the canker is three years old. The smaller cankers sometimes heal slowly by callus- formation. In other cases the wound never heals, but instead the limb is completely girdled. The disease is not uncommon on the fruit, either in the orchard or in storage. The le- sions may begin anywhere on the surface; frequently they center about one end, or about an injury of some sort. The. Fig. 23. — Northwestern anthracnose-cankers on 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 Hesler, L. R. (Lexemuel Ray); Whetzel, Herbert Hice, 1877-1944. New York : Macmillan
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