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前言白叶枯病[Xanthomonas oryzae (Uyeda and Ishiyama)Dowson]是目前仅次于稻瘟病的重要水稻病害,华东、华中和华南各地都有發生,病区还有逐漸扩展的趋势。白叶枯病的防治,目前除去注意品种和施肥以外,还沒有更积極有效的消灭方法,主要是因为对这病害的侵染循环还不完全了解。白叶枯病初次侵染的来源,意見很不一致。石山信一及桥岡良夫認为土壤和作物殘余中的細菌是初次侵染的来源,盾藤和夫等則証明白叶枯病細菌在土壤中不能越冬,初次侵染来源是病藁和种子中的細菌,并發現在野草中越冬的細菌也是侵染的
Introduction Xanthomonas oryzae (Uyeda and Ishiyama) Dowson is the most important rice disease after the rice blast disease in China, all over eastern China, central China and southern China, and the ward has a tendency to expand gradually. The prevention and control of bacterial leaf blight, the current removal of attention to species and fertilization, there is no more active and effective elimination methods, mainly because of the disease infection cycle is not fully understood. The origin of the bacterial infection of the first bacterial blight, the opinions are very inconsistent. Ishigaki letter Kazuhiro Okamoto that soil and crop residues in the bacteria is the source of the initial infection, such as shield vine and husband proves that bacterial leaf blight in the soil can not wintering, the primary source of infection is sickness and seed In the bacteria, and found that overwintering bacteria in the weeds are also infected