Hairy vetch, Vicia villosa, is the most winter hardy and drought tolerant of the vetches. Stem rot of vetch is caused by a fungus that is destructive during cool, wet weather. Hairy vetch will not successfully overwinter in many northern areas of the Midwest. Vetch does not require nitrogen fertilization. The eggs are laid on the green vetch pods in the spring. In this case, the N credit should be determined by the amount of material incorporated and may range from 40 to 80 lb/acre. Older plants become stunted or discolored red or yellow when infected. The spots are small and dark red when young, later fading to light gray or brown with a maroon border. Hughes, H.D., and D.S. Vetches grow well on a wide range of soil types, but are best adapted to loamy and sandy soils. 9 10 11. 1740. Tendrils form on the ends of the leaves. A reddish-purple plant with hairy stems (hence the name), this annual or biennial plant grows across 50 states and in moderate climates throughout the world. The larvae enter the pod and feed on the seed, destroying its viability. 2010-06-20 02:34:05. Infected leaves turn yellow and drop off prematurely. Vetch seed remains viable for 5 years or longer. 7.5 - 22.5kg per acre / 18.75 - 56.2 kg per ha. Asked by Wiki User. Wiki User Answered . Light, early- spring pasturing reduces excessive vine growth, delays bloom and may improve the seed yield. Although hairy vetch is typically pubescent, the most extensively used commercial variety is called smooth vetch because it appears to have no pubescence. (Wisconsin). These bugs tend to feed on the reproductive parts, often causing the buds and flowers to drop. D.J. Sow Hairy Vetch cover crop seeds from early March to mid-April, and again August to mid-September. Hairy Vetch is best grown with plants like cereal rye that enable the hairy vetch to climb up the cereal rye to allow air movement across the soil surface. For pasture: A field of fall-seeded rye and vetch can be pastured from early May through June, then plowed and sown to mixtures of corn and sudangrass for late summer pasture. A type of legume, hairy vetch (Vicia villosa) is a cold-hardy plant belonging to the same plant family as beans and peas. The stems and leaves of hairy vetch are pubescent with tufts present at tips of stems. However, the species in commercial use, including hairy vetch (Vicia villosa Roth), are all native to Europe or western Asia. Repeated production of rye and vetch on the same land, however, favors growth of winter annual and perennial weeds. That said, crown vetch fixes nitrogen in the soil and is commonly used to restore strip-mined soil. Hairy vetch (Vicia villosa) is a legume that's related to peas and beans. Sow in the spring as part of a whole crop mixture, but can be autumn sown for over winter cover or grass silage mixes. However, it is also less winter hardy than hairy vetch. It is smooth and 4-5mm in length. It sucks sap from the plant, causing the leaves to turn yellow. Protective covering by a companion crop or crop waste reduces the danger of winter kill. Seed should be sown when the soil is moist, because a hot, dry soil will reduce, if not prevent, effective inoculation. It is the only vetch that can be grown in the Upper Midwest. In this respect it acts like those plants which start growth late in the season, rest during the winter and finish development the next year. This plant is a cool-season perennial, spreading by rhizome as well as seed. Alternatively, another crop of rye and vetch can be drilled back into the pasture in late August. A heavy infestation will kill the plants. The flowers are generally purple in colour, arising on long stalks from the base of the leaves, later producing an obvious seed pod. Seed pods, bearing 4 to 8 seeds each, mature unevenly from July 10 to July 25. They withstand trampling, provide grazing during May and June and have a feeding value slightly lower than that of clover and alfalfa. Although the vetches are not drought resistant, this is rarely a problem. Hairy vetch (Vicia villosa) is a trailing winter annual, biennial, or summer annual weed that forms large mats of vegetation. Average number of seeds per kg 40 000. The shape of each leaf is gently tapering in overall shape towards the apex. See more. September, 1990. This disease sometimes causes considerable damage in the Pacific Northwest. Seed development may be hindered by this disease. Symptoms are most conspicuous in seedlings, which wilt and die. The cover grows slowly in fall, but root development continues over winter. Cultural Control. Attractive pinkish-rose flowers appear in May through August sitting atop short fern-like leaflets. Be determined by the amount of N. What is hairy vetch is often grown with a rake! 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