. Diseases of economic plants. Plant diseases. DISEASES OF ECONOMIC PLANTS trunk. The fungus has also been trees many years after they had died. found growing on Neighboring trees. Fig. 185. — Log rotted by Polyporus Schweinitzii. After von Schrenk. generally become infected from a diseased tree, through the small fibrous roots. Root rot {Polyporus Schweinitzii Fr.). — A destructive root rot of spruce, fir, arbor vitse, and pine, by weakening the root or trunk, leads to the overthrow of the tree by Please note that these images are extracted from scanned page images that may have been d
. Diseases of economic plants. Plant diseases. DISEASES OF ECONOMIC PLANTS trunk. The fungus has also been trees many years after they had died. found growing on Neighboring trees. Fig. 185. — Log rotted by Polyporus Schweinitzii. After von Schrenk. generally become infected from a diseased tree, through the small fibrous roots. Root rot {Polyporus Schweinitzii Fr.). — A destructive root rot of spruce, fir, arbor vitse, and pine, by weakening the root or trunk, leads to the overthrow of the tree by 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, 1871-1934; Hall, John Galentine, 1870-. New York, Macmillan
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Keywords: ., bookauthorstevensf, bookcentury1900, bookdecade1910, bookyear1910
