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一、发生概况小麦丛矮病(群众叫坐坡、孤丁、小蘖、落垄),在我国冬麦区分布很广,陕西、山东都曾有大面积发生.近几年,这个病害已经扩展到北京、天津,并出现一些严重病区.1977年江苏省也遭到了这种病的危害.小麦丛矮病在我省过去很早就有,但只是在地头、地边,邻近杂草多的地方零星发生.近几年来,石家庄、唐山地区冬小麦钻种的地块上大面积连片
First, the occurrence of wheat clump dwarf disease (masses called the hillside, solitary small, small tiller, ridge), in our country winter wheat area is widely distributed, Shaanxi, Shandong have had a large area.In recent years, the disease has been Spread to Beijing and Tianjin, and some serious wards.Jiangsu Province was also hit by this disease in 1977. The bushy dwarf disease of wheat has existed very early in our province, but only on the ground, the ground and the adjacent weeds Many places occur sporadically.In recent years, Shijiazhuang, Tangshan area of winter wheat drilling plots of large area contiguous