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前言水稻白叶枯病(Xanthomonas canpestris PV·oryzae)最初发生于日本九州一带,后在东南亚地区流行。原认为是亚洲地区性病害,现已蔓延至大洋洲、美洲。据国内近年报道,已遍及全国。云南省五十年代后期发现此病,病害逐渐扩展,按1981年的统计,除迪庆外均有分布,是水稻产区重要病害。
Preface Rice bacterial blight (Xanthomonas canpestris PV oryzae) first occurred in the area of Kyushu in Japan and later in Southeast Asia. Originally thought to be a disease in Asia, it has now spread to Oceania and the Americas. According to reports from China in recent years, it has spread all over the country. In the late 1950s in Yunnan Province, the disease was found and its disease gradually expanded. According to the statistics of 1981, it was distributed outside Diqing, which was an important disease in rice-producing areas.