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水稻矮缩病在我县发生危害的主要有黑条矮缩病、条纹叶枯病、普通矮缩病、黄矮病、黄萎病等五种。1969年前,以黑条矮缩病及条纹叶枯病为主,经过防治,1969年后很少发生,而黑尾叶蝉传染的普通矮缩病则严重起来,另外黄矮病、黄萎病也有露头。1970年全县普通矮缩病的平均株发病率达15—17％。几年来,我们采取治虫防病,对黑尾叶蝉抓住八个关键五条措施,围绕二个迁飞高峰,进行防治,有效地控制了普通矮缩病的发生,到1974年发病率已控制在0.8％以下。
Rice dwarf disease in our county are the main hazards of black-streaked dwarf disease, stripe virus, common dwarf disease, yellow dwarf disease, Verticillium wilt five. Before 1969, with black-streaked dwarf disease and striped leaf blight as the main, after control, rarely occurs after 1969, while the common black dwarf leafhopper dwarf infection is serious, other yellow dwarf, Verticillium wilt Disease is also outcrop. In 1970 the county average dwarf disease average incidence of 15-17%. In the past few years, we took control of pests and diseases and seized eight key five measures against them. They controlled and controlled the occurrence of common dwarf diseases around the two migration peaks. By 1974, the incidence rate was controlled Below 0.8%.