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水稻白叶枯病[Xanthomonas oryzae(Uyelaet Ishiyama)Dowson]是水稻的一种重要病害,该病在东南亚和南亚次大陆发生普遍,为害严重。我国在30—40年以前就有白叶枯病发生,曾被列入全国植物检疫对象名单。目前在我国水稻产区除新疆和东北的北部以外,几乎都有分布。由于分布地区广,目前已在全国检疫对象名单中取消。但在新疆检疫对象中是否取消,由于对新疆的自然条件下,该病能否发生有不同看法,尚有争议。 有关研究指出,气象因素特别是温度、湿度和降水量与白叶枯病的发生有密切关系,一般认为气温在26—30℃,相对温度在
Rice bacterial blight [Xanthomonas oryzae (Uyelaet Ishiyama) Dowson] is an important disease in rice, which is prevalent in South-East Asia and the South Asian subcontinent, causing serious damage. China has bacterial blight 30 to 40 years ago, and has been listed into the national list of plant quarantine objects. At present, except for the northern part of Xinjiang and northeast of China’s rice-producing areas, almost all are distributed. Due to its wide geographical distribution, it has been canceled in the list of quarantine objects nationwide. However, whether it is canceled in the quarantine targets in Xinjiang is still controversial because of the different opinions on whether the disease can occur under the natural conditions in Xinjiang. The study pointed out that the meteorological factors, especially temperature, humidity and precipitation are closely related to the occurrence of bacterial blight, the general temperature is 26-30 ℃, the relative temperature at