. FiG. 209. — Map showing general location of pine blister infections. ^ Diseased white pines found in 1816. • Diseased currants and gooseberries found in 1916. j^ Areas of heavily infected currants and gooseberries. !:X, Centers of heavy infection where the principal efforts were made "^ to eradicate diseased plants. (Three centers of infection also exist in Wisconsin and Minnesota.) Courtesy of the Office of Forest Pathology. necticut. New York, Pennsylvania, Rhode Island, New Jersey, Kansas, Ohio, Indiana, Wisconsin, Minnesota. The alternate host is Ribes (see p. 116), some twenty-one
. FiG. 209. — Map showing general location of pine blister infections. ^ Diseased white pines found in 1816. • Diseased currants and gooseberries found in 1916. j^ Areas of heavily infected currants and gooseberries. !:X, Centers of heavy infection where the principal efforts were made "^ to eradicate diseased plants. (Three centers of infection also exist in Wisconsin and Minnesota.) Courtesy of the Office of Forest Pathology. necticut. New York, Pennsylvania, Rhode Island, New Jersey, Kansas, Ohio, Indiana, Wisconsin, Minnesota. The alternate host is Ribes (see p. 116), some twenty-one species of which are susceptible. In the spring, sporidia from the
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921
