承德市大面积发生高粱红条病高粱红条病是一种高粱新病害，前几年虽有发生，但发生较轻、较分散。今年承德市的宽城、承德等县高粱红条病发生面积大、范围广、发病重，有逐年加重的趋势。为此，我们进行了发病情况的调查，并对发病原因、防治措施进行了初步的研究。１发生... Chengde City, a large area occurs sorghum stripegrain Red sliver is a new disease of sorghum, although a few years ago, but occurred lighter, more dispersed. This year Chengcheng City, Kuancheng, Chengde County, sorghum red stripe occurred in a large area, a wide range of serious illness, increasing year by year trend. To this end, we conducted a survey of the incidence, and the cause of the disease, prevention and treatment of a preliminary study. 1 happened ...