我们王四营公社近几年来,随着间作套种和水稻面积的扩大,小麦丛矮病发生普遍,为害严重,一般麦田发病株率10％左右,严重地块达到60％以上,甚至全田毁种。发病重的麦苗一般不能越冬,冬后发病株多数不能拔节抽穗,轻病株即使勉强抽穗也是穗小粒秕,造成减产。 In recent years, with the intercropping intercropping and paddy rice expansion, the occurrence of wheat bushy dwarf disease is widespread and seriously devastating. In general, the incidence rate of wheat in the field is about 10%, and the serious mass is more than 60% and even the entire field is destroyed Species. Emergence of wheat seedlings generally can not wintering, the majority of winter-onset strains can not jointing heading, light strains even barely heading is ear spikelets, resulting in reduced production.