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前已报道水稻瘤矮病在湛江地区的发生情况和初侵染源(《广东农业科学》,1983年第1期和第6期)。本文报道该病在信宜县晚造秧田及大田的发生规律及防治试验结果。本病一般在早造发生很轻,但在晚造则发生面积广而危害严重。根据湛江地区农业局,信宜、高州和化州等县农业局,以及我们的调查观察表明,在晚造本病的传染期主要是在秧苗期,秧龄越小受害越重,超过8—9叶龄期后受害较轻。据此,我们进行了下述调查和防
The occurrence and primary infection of rice dwarf disease in Zhanjiang have been reported before (Guangdong Agricultural Sciences, No. 1 and No. 6, 1983). This article reports the disease in Xinyi late rice seedling field and field occurrence and control test results. The disease usually occurred in the early made very light, but in the late make a wide area and endangered. According to the Zhanjiang District Bureau of Agriculture, Xinyi, Gaozhou and Huazhou County Bureau of Agriculture, and our survey shows that late in the infection period of the disease is mainly in the seedling stage, the younger the more affected the victims, more than 8-9 Leaf age victims less. Accordingly, we conducted the following investigation and prevention