. Diseases of economic plants. Plant diseases. 46 Diseases of Economic Plants leaves show symptoms of disease, and the fruit fails to grow to full size. With complete girdling the limb dies. Since all infection seems to occur through wounds, pre- vention must look largely toward the avoidance of wounds. Fig. 20. — Blister-canker. Some of the discs have been re- moved to show the underlying marking. by tools, machinery, harnesses, pickers' ladders, boots, etc. It is also an excellent sanitary measure to cut out and burn all infective material, and in incipient cases excision of diseased tissue
. Diseases of economic plants. Plant diseases. 46 Diseases of Economic Plants leaves show symptoms of disease, and the fruit fails to grow to full size. With complete girdling the limb dies. Since all infection seems to occur through wounds, pre- vention must look largely toward the avoidance of wounds. Fig. 20. — Blister-canker. Some of the discs have been re- moved to show the underlying marking. by tools, machinery, harnesses, pickers' ladders, boots, etc. It is also an excellent sanitary measure to cut out and burn all infective material, and in incipient cases excision of diseased tissue in a limb may be practiced with 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 Stevens, Frank Lincoln, 1871- [from old catalog]; Hall, John Galentine, 1870- [from old catalog] joint author. New York, The Macmillan company
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Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921
