. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 350 FUNGOUS DISEASES OF PLANTS XLVI. BLACK ROT AND CANKER OF POMACEOUS FRUITS Sphceropsis Malorum Pk. Halsted, B. D. The Black Rot of the Quince. N. J. Agl. Exp. Sta. Bulk. 91: 8-10. 1892. Paddock, Wendell. The New York Apple-tree Canker. N. Y. Agl. Exp. Sta. Built. 163: 331-360. ph. 28-33. l899- Paddock, Wendell. Ibid. (Second Report) N. Y. Agl. Exp. Sta. Built. 185: 205-213. 1900. Habitat relations. Under the specific name given above a fruit decay of apples, quinces, and pears h
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 350 FUNGOUS DISEASES OF PLANTS XLVI. BLACK ROT AND CANKER OF POMACEOUS FRUITS Sphceropsis Malorum Pk. Halsted, B. D. The Black Rot of the Quince. N. J. Agl. Exp. Sta. Bulk. 91: 8-10. 1892. Paddock, Wendell. The New York Apple-tree Canker. N. Y. Agl. Exp. Sta. Built. 163: 331-360. ph. 28-33. l899- Paddock, Wendell. Ibid. (Second Report) N. Y. Agl. Exp. Sta. Built. 185: 205-213. 1900. Habitat relations. Under the specific name given above a fruit decay of apples, quinces, and pears has become well known although. Fig. 169. Sphceropsis Malorum on Apple. (Photograph by H. H. Whetzel) not serious in the United States. More recently it has developed that this fungus is likewise the cause of an important form of can- ker on trunks and limbs of the same fruit trees. It has been ex- tensively studied only in New York (Paddock). Owing to the occurrence, however, of a variety of cankers on the apple tree, this one is frequently designated "the New York apple ; This canker has been found to occur in many of the northeastern. 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 Duggar, Benjamin M. (Benjamin Minge), 1872-1956. Boston ; New York : Ginn
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