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水稻纹枯病是浙江省水稻上普遍发生的病害。近年来由于矮稈、多穗型品种的推广,和施肥水平的不断提高,为害逐年加重,成为阻碍水稻增产的因素之一,是当前急待解决的问题。本病的发生是以遗留在田间的菌核越年,翌年抽出菌丝侵害水稻。据在嘉兴塘汇公社鸣羊大队7队的10块田中调查推算,最少的一块每亩的菌核量有56万多粒,最多的达214万粒,
Rice sheath blight is a common disease on rice in Zhejiang Province. In recent years, due to the popularization of dwarf and multi-spike varieties and the continuous improvement of fertilization levels, pests increase year by year and become one of the factors hindering the increase of rice yield, which is an urgent issue to be solved urgently. The occurrence of this disease is based on the remaining sclerotia in the field, the next year, extracted mycelium damage to rice. According to the investigation of 10 Tanaka plants in the 7 teams of the Mingyang Fighting Brigade in Jiaxing Tonghui Commune, the least amount of more than 560,000 sclerotinia per acre reached a maximum of 2.14 million,