The underside of infected leaves is covered with fine grayish fungal threads. It may be caused by one or several unrelated fungi that can attack plants at all stages of growth. In this case, the N credit should be determined by the amount of material incorporated and may range from 40 to 80 lb/acre. Seed pods, bearing 4 to 8 seeds each, mature unevenly from July 10 to July 25. Hairy vetch (Vicia villosa) is a trailing winter annual, biennial, or summer annual weed that forms large mats of vegetation. Undersander1, N.J. Ehlke2, A.R. Because they are legumes, vetches can be grown on nitrogen-depleted soils without the addition of N fertilizer. Control of lygus bugs may be necessary in seed production fields. Hairy Vetch is one of the best winter hardy nitrogen producers used as a cover crop. 1968. Inoculated hairy vetch seed can be drilled at a rate of 25 to 35 lb/acre. Well-nodulated hairy vetch can enrich the soil with 60 to 120 lb/acre of nitrogen through nitrogen fixation. Hairy vetch is a good cover crop choice where spring forage production and nitrogen contribution are desired. When this is done, the amount of nitrogen credited to the succeeding crop should be about 60 lb/acre. The plant is sometimes planted in spring, especially in agricultural applications. Vetches are susceptible to several fungal diseases, some of which are restricted by temperature and moisture conditions to certain parts of the country. This will provide the maximum ripe seed yield. Adapts well to most climates and soil types, but doesn’t like poorly drained sites. Enter legumes like hairy vetch, which have tumor-like structures growing on their roots called nodules. Hairy vetch is a widely adapted, winter hardy cool-season annual legume that supplies an abundant amount of palatable forage for deer and turkeys and other wildlife in late spring into early summer. Shattered seed can be disked in as soon as possible after harvest to start a new crop. This "false anthracnose" produces a brown discoloration and girdling of stems. The MacMillan Company. Vetch can be difficult to grow for seed. Tendrils form on the ends of the leaves. Top Answer . This disease sometimes causes considerable damage in the Pacific Northwest. Hairy vetch, (Vicia villosa), aka sand vetch or winter vetch, is the most winter-hardy of the vetches. The disease can cause serious damage to hairy vetch seedlings. It has a shallow but strong root system, with good lateral branches. Vetch is generally cut for hay when the first pods are well developed and the grain is in the early soft-dough stage. 1Departments of Agronomy and Soil Science, College of Agricultural and Life Sciences and Cooperative Extension Service, University of Wisconsin-Madison, WI 53706. When pods are heavily spotted, the fungus penetrates the seed. Weeds are rarely a serious problem in vetch fields, especially when seeded in late summer or early fall. The shape of each leaf is gently tapering in overall shape towards the apex. Compare their benefits, which differ in many ways like facts and uses. The leaflets are linear to narrowly lance-shaped and ¾ to 1 inch long, growing perpendicular to stem. 7.5 - 22.5kg per acre / 18.75 - 56.2 kg per ha. Because rye is well past the stage for best quality hay by the time vetch is ready for mowing, the quality of the hay is low. Hairy vetch is quick to grow in spring, producing vast biomass that smothers weeds and feeds soils. Seed Vetch is attacked by many of the insect pests of alfalfa, clover and other forage legumes, including the pea aphid, cutworm, corn earworm, fall armyworm, vetch bruchid, grasshopper, lygus bug and leafhopper. Growth accelerates in the spring when it can reach 12 feet in length. For crops which leave a relatively uniform seedbed, vetch can be planted without plowing. Structure with 6-12 pairs of opposite leaflets, these are narrow and ovate timed with to... 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