. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 55.—Canfecr spreading the second season, destroying callus of last season and enlarging area of cankered surface. Fig. 54.—Cankers in body of tree resulting from the renewal of activity season after season. Observe that these Started from small pit cankers which partially healed each season. The disease the following season de- stroyed all the bark groii'ih, leaving only the little bit of wood formed in the callus. This still persists. healing over.
. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 55.—Canfecr spreading the second season, destroying callus of last season and enlarging area of cankered surface. Fig. 54.—Cankers in body of tree resulting from the renewal of activity season after season. Observe that these Started from small pit cankers which partially healed each season. The disease the following season de- stroyed all the bark groii'ih, leaving only the little bit of wood formed in the callus. This still persists. healing over. Aside from affording an entrance to rot fungi such cankers, unless they enlarge, do not seriously affect the health of the tree. In many cases these pit cankers do not heal properly or at all, and the disease, spreading the same or the following season, forms the large and dangerous "limb" or "body cankers" (Fig. 59).. 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 Cornell University. Agricultural Experiment Station. Ithaca, N. Y. : The University
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