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紫云英菌核病是紫云英的主要病害,尤其是对留种田的危害最重。西洋公社西洋、过溪两个大队一九七八年紫云英留种田580亩,后期菌核病普遍发生,一般发病率达15～24％,最高的达100％,损失产量一般一、二成,最高达六、七成。为了掌握该病的发生规律,制订行之有效的防治措施,笔者于一九七七年冬开始对此病进行一些实验性的研究,现报告如下:
Shigella sclerotiorum is the main disease of Astragalus sinicus, especially the most harmful to the remaining farming. West commune commune, the two brigade across the river in 1978 to stay 580 hectares of farming, late sclerotinia prevalence, the general incidence of 15 to 24%, the highest up to 100% loss of production in general one or two Into, up to six, Qi Cheng. In order to grasp the law of occurrence of the disease and formulate effective prevention and control measures, the author conducted some experimental studies on the disease in the winter of 1977, and the report is as follows: