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稻曲病在我国早有发生,但以前为害不大,近几年来,随着杂交稻和“桂朝”等不少感病品种的推广,此病的发生为害已日益严重,成为水稻的一个重要病害。国内外对此病曾有一些研究报道,但对于初侵染来源和侵染时期则见解不一,作为地处亚热带的广东省,过去却未有进行研究和报道。为探明此病在广东的发生规律,我们在1984年受省农业厅的委托而开展此项工作。1984—1985年的初步研究结果表明,在广东的条件下,此病的发生规律与国内外报道的有所
In recent years, with the spread of many susceptible varieties such as hybrid rice and “Gui and Chao”, the incidence of the disease has become increasingly serious and has become one of the rice Important disease. There have been some reports about this disease both at home and abroad, but the sources of infection and infection are different. As a subtropical province in Guangdong, there have been no studies and reports in the past. To find out the law of occurrence of this disease in Guangdong, we commissioned this work in 1984 by the Provincial Department of Agriculture. The preliminary research results from 1984 to 1985 showed that under the conditions of Guangdong, the occurrence of this disease and some reports at home and abroad