水稻齿叶矮缩病(Rice ragged stunt),1977年在菲律宾首次报道.1978-1979年在我国福建和广东省首次发现该病,1980年江西省也报道有此病发生.据调查病田,病株一般零星发生,但严重发病时病株率高达90%,导致水稻失收.因此,对本病在我国稻区的发生情况开展普查和试验研究十分必要.现将我们的试验观察结果整理如下.(一)水稻齿叶矮缩病的发生及症状为了查明水稻齿叶矮缩病在我省的分布为害情况,1980年以来.通过多种途径,发动了全省性的普查工作.目前,除极个别地方发现 Rice ragged stunt was first reported in the Philippines in 1977. The disease was first reported in Fujian and Guangdong provinces in China from 1978 to 1979 and also in Jiangxi province in 1980. According to a survey of the disease field, The diseased plants usually sporadically occur, but the rate of diseased plants is as high as 90% at the time of serious disease, resulting in the loss of rice.Therefore, it is necessary to carry out the general survey and experimental research on the occurrence of this disease in the rice area in our country. As follows: (A) Occurrence and symptoms of rice leaf-dwarf disease In order to find out the distribution of rice leaf-dwarf disease in our province, since 1980, we launched a provincial census through various channels. At present, except very few places found