. Diseases of economic plants . Plant diseases. I'lHEANES OF SPECIAL CHOPS 111 adjacent cedar trees, and there produce swellings upon the branches and twigs during the fall and winter. In the spring, these give origin to long gelati- nous horns, which consist of masses of spores embedded in a matrix of jelly. These spores upon drying are conveyed to the quince tree by the winds, and there produce again the quince rust. The cedar is a necessary resting place for this fungus dur- ing the winter. The remedy there- fore is, if possible, to remove the cedar trees from the neigh- borhood of quince t

. Diseases of economic plants . Plant diseases. I'lHEANES OF SPECIAL CHOPS 111 adjacent cedar trees, and there produce swellings upon the branches and twigs during the fall and winter. In the spring, these give origin to long gelati- nous horns, which consist of masses of spores embedded in a matrix of jelly. These spores upon drying are conveyed to the quince tree by the winds, and there produce again the quince rust. The cedar is a necessary resting place for this fungus dur- ing the winter. The remedy there- fore is, if possible, to remove the cedar trees from the neigh- borhood of quince t Stock Photo
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. Diseases of economic plants . Plant diseases. I'lHEANES OF SPECIAL CHOPS 111 adjacent cedar trees, and there produce swellings upon the branches and twigs during the fall and winter. In the spring, these give origin to long gelati- nous horns, which consist of masses of spores embedded in a matrix of jelly. These spores upon drying are conveyed to the quince tree by the winds, and there produce again the quince rust. The cedar is a necessary resting place for this fungus dur- ing the winter. The remedy there- fore is, if possible, to remove the cedar trees from the neigh- borhood of quince trees. This will al- most entirely pre- vent the rust, although in rare in- stances a few spores may be carried a considerable dis- tance. Reasonable protection is secured if all of the cedar trees in the immediate vicinity of the orchard be removed. In case the cedar is too abundant to permit of its complete removal, resort must be had to spraying the leaves and fruit of the quince trees with the Bordeaux mixture at the time when the rust spores are expected to arrive; that is, . Fig. 47.—-Quince knot caused by the ruat fun- gus. After Bailey.. 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 work.. Stevens, Frank Lincoln, 1871-1934; Hall, John Galentine, 1870-. New York : Macmillan

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