. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 99 fungus is a good case in point. Finally, the fungi may actually aid by special devices the spread of disease. Such devices are seen in the sac fungi where spores are forcibly ejected and so, caught by the wind, are easily scattered. Again, infection may take place not only by spores but also by mycelium, and does so in many cases. This is noticeably true in those fungi which. Fig. 39.—^A good example of an epidemic. Potato blight has, within a week, entirely destroyed the potato plants in this field. After Clinton. attack
. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 99 fungus is a good case in point. Finally, the fungi may actually aid by special devices the spread of disease. Such devices are seen in the sac fungi where spores are forcibly ejected and so, caught by the wind, are easily scattered. Again, infection may take place not only by spores but also by mycelium, and does so in many cases. This is noticeably true in those fungi which. Fig. 39.—^A good example of an epidemic. Potato blight has, within a week, entirely destroyed the potato plants in this field. After Clinton. attack trees and particularly root parasites. Contact between a diseased tree trunk or roots and a healthy one may ofifer the mycelium a chance to pass over directly from the one to the other and a successful infection may ensue. Some of these fungi have a special shoe-string-like strand of threads which are especially proficient in effecting mycelial 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 Freeman, Edward Monroe, 1875-. Saint Paul, Minn.
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