Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplants00tube Year: 1897 360 UREDINEAE. Tliis rust is indigenous to Chili, and was introduced into France about 1868, whence it rapidly extended throughout the whole of Europe, and during the last ten years has made its appear- ance in the United States. In many places it has completely exterminated both wild and cultivated mallows, and rendered the cultivation of garden hollyhocks impossible. It appears in Fig. 102.—Pucc
Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplants00tube Year: 1897 360 UREDINEAE. Tliis rust is indigenous to Chili, and was introduced into France about 1868, whence it rapidly extended throughout the whole of Europe, and during the last ten years has made its appear- ance in the United States. In many places it has completely exterminated both wild and cultivated mallows, and rendered the cultivation of garden hollyhocks impossible. It appears in Fig. 102.—Puccinia malvacearum. Mallow leaf, with teleutospore-sori. Tliree teleutospores, one germinating, (v. Tubeuf del.) May or June on the leaves, stems, and petioles of the host; all are more or less deformed, and the leaves may in severe cases wither up long before the flowers appear. Sponging with a solution of permanganate of potash (two tablespoonfuls in one quart of water), has been found an effective remedy. P. Sherardiana Koni. On mallow in America. P. heterogenea On linllylioek in South America. P. anemones-virginianae .Scliwein. On Anemone. ( America.)
Size: 1140px × 1755px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
