一九七九年四月上、中旬,共大清江分校早稻“竹莲矮”秧田,发生较严重的稻苗叶斑性病害,扩展蔓延很快,造成局部死苗现象。五月中旬,又先后在本县昌付公社安阳大队和樟树镇郊区早稻本田中,发现一些相同病苗,经仔细检验鉴定,确认是一种水稻疫霉病。这 In April and mid-April 1979, a large number of rice seedling leaf spot diseases occurred in early rice and “Zhulian short” seedlings in the Qingjiang Branch in the middle and the middle of April 1979, spreading rapidly and causing local dead seedlings. In mid-May, successively in the county Chang Fu Commune Anyang Battalion and the early morning Honda in the suburbs of camphor tree, found some of the same disease vaccine, after careful examination identified to confirm is a Phytophthora infestans disease. This