. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Alfalfa for New York 15S1 course of a few days it attaches to the alfalfa plant. The dodder plant does not develop a root system of its own, but lives on food extracted from the alfalfa plant. The infested plants die in time. The dodder plant, being a twining vine, spreads from one alfalfa plant to another. It seldom seeds in New York State, but the
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Alfalfa for New York 15S1 course of a few days it attaches to the alfalfa plant. The dodder plant does not develop a root system of its own, but lives on food extracted from the alfalfa plant. The infested plants die in time. The dodder plant, being a twining vine, spreads from one alfalfa plant to another. It seldom seeds in New York State, but the original infestation comes from dodder seed in the original alfalfa sowing. The dodder plants also live over winter, on the crowns of alfalfa plants, and in this way spread rapidly from year to year. If the field is thoroughly infested, about the only recourse is to break it up and put it to some other kind of crop for at least two years. Where the dodder occurs only in small spots it can be con- trolled, and sometimes eradicated, by mowing those spots very close as soon as they appear, drying the material, and burning it on the land. The burning will injure the alfalfa plants only slightly and may kill any dodder still adhering to the Fig. 245.— Alfalfa dodder plant, as it grows on alfalfa plants Root rot In old alfalfa fields many of the large roots are likely to begin to rot at the crown. The root decays slowly and dies in one or two seasons. There is no remedy for this. The rot is usually favored on rather wet lands and is increased when the crowns are injured by machinery. Culti- vating the fields with a disk harrow stimulates growth, but usually it increases root rot by injuring many of the 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 New York State College of Agriculture; Corne
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