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本世纪七十年代以来,花生锈病在亚洲、非洲和大洋洲的许多地方流行,已成为世界性的病害。我国的广东、广西、福建和台湾省也曾迅速蔓延,造成严重危害。为了澄清此病在我省的发生情况,我们于1981年到八个地区的十七个县作过调查,发现大部分县都有发生。淮河以南地区已相当严重,估计减产在1—3成,已超过叶斑病的危害。我们还镜检各县病株,均未发现有冬孢子存在。为了明确我省花生锈病的侵染来源,以期为防治提供依据,我们自1981年起对此进行了研究,结果如下。
Since the 1970s, peanut rust has become endemic in many parts of Asia, Africa and Oceania and has become a worldwide disease. Our country’s Guangdong, Guangxi, Fujian and Taiwan provinces have also rapidly spread, causing serious damage. In order to clarify the incidence of this disease in our province, we conducted surveys in 17 counties in eight districts in 1981 and found that most of the counties had occurred. South of the Huaihe River has been quite serious, the estimated yield reduction at 1-3 into, has exceeded the hazards of leaf spot. We also examined all the diseased strains in the counties and found no teliospores. In order to clarify the sources of pest rust infection in our province, with a view to provide a basis for prevention and treatment, we have conducted research since 1981, the results are as follows.