黄萎病是紫花苜蓿的一种毁灭性病害。早于1918年首次发现于瑞典,随后在欧洲大陆、英国、新西兰、加拿大、美国和苏联也都发现。在欧洲常于苜蓿播种当年,就有50%以上的植株发病,至第二或第三年因病株衰弱死亡,而使草地失去利用价值。因而,许多国家都很重视对苜蓿黄萎病的检疫及防治研究。在国内,虽然棉花、茄子等经济和蔬菜作物的黄萎病引起了广泛重视,但在苜蓿等豆科牧草上确无发生报道。近年来,党和政府特别重视种草种树发展牧业,牧草引种和种子交流日趋频繁。因此,注意对某些危险性的或危害大的牧草病虫害实行严格检疫,保护我国农牧业生产,已是不容忽视的问题。 Verticillium wilt is a devastating disease of alfalfa. It was first discovered in Sweden as early as 1918 and subsequently found in continental Europe, the United Kingdom, New Zealand, Canada, the United States and the Soviet Union. More than 50% of the plants in Europe are often sown in the year of alfalfa. By the second or third year of death, the plants lose their value because of their weak death. Therefore, many countries attach great importance to quarantine and control of alfalfa wilt. In China, although the economic losses of crops such as cotton and eggplant are caused by verticillium wilt, no reports have been made on leguminosae such as alfalfa. In recent years, the party and the government have paid special attention to planting grasses and growing pastures. The introduction of forage and the exchange of seeds have become more frequent. Therefore, paying attention to the strict quarantine of some dangerous or harmful large-scale grass pests and diseases to protect the production of agriculture and animal husbandry in our country is an issue that can not be ignored.