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1972年5月在我区的部分早稻秧苗上出现了一种新的叶枯病,发展很快,危害较重,引起了贫下中农的广泛重视.我校科研小组为了搞清病原种类,摸索它的发生规律和有效防治方法,于1973年开展了病情普查,定点系统观察,病原侵染传播和防治途径等试验研究.在江苏农学院植保系的热情鼓励与帮助下,对探明这一地区性病害问题,取得了一些结果.现将几年工作综述于后.一、发生和危害本病由藻状菌中疫霉属真菌引起.江苏农学院植保系王金生等同志定名为稻苗疫霉病(Phytophthora fragariae Hickm.var.
In May 1972, a new leaf blight appeared on some early rice seedlings in our district, which developed rapidly and harmed seriously, causing widespread concern of poor and poor middle peasants. And the effective prevention and treatment methods, we carried out the pilot studies on disease census, site-directed systematic observation, pathogen infection transmission and prevention and control in 1973. With the encouragement and encouragement from the Plant Protection Department of Jiangsu Agricultural College, Sex disease problems, and achieved some results now summarized in the work after a few years First, the occurrence and harm The disease caused by Phytophthora Phytophthora fungi in Jiangsu Agricultural College Plant Protection Wang Jinsheng and other comrades named as seedlings Phytophthora Disease (Phytophthora fragariae Hickm.var.