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一、小麦丛矮病的发生和危害小麦丛矮病在安阳地区早有零星发生,没有造成大的危害,未能引起重视。近年来,出于耕作制度的改革—棉麦套种和三种三收的推广,以及1977年麦播偏早等原因,1978年小麦丛矮病在某些社队严重发生。据安阳地区12个县、市的90个公社统计,发病面积达50万亩,其中基本绝收的近400宙,发病株率达50%左右的近3000亩。安阳县辛店公社齐庄大队,有20亩棉麦套种田,病株率达95%以上,麦收平均亩产7.5斤;曲沟公社洪岩大队,有20亩小麦因丛矮病危害,平均亩产只20斤左右,减产严重。
First, the occurrence and harm of wheat bushy dwarf disease Cong Zheng dwarf disease in wheat has sporadic sporadic, did not cause great harm, failed to pay attention. In recent years, due to farming system reform - cotton and wheat intercropping and promotion of three kinds of three harvests, as well as the early broadcast of wheat and other reasons in 1977, wheat cercolin disease in some communes and graves occurred seriously. According to the statistics of 90 communes in 12 counties and cities in Anyang area, the disease area is 500,000 mu, of which nearly 400 are almost totally harvested. The incidence rate of nearly 90,000 mu is about 50%. Anyang County Xindian commune Qizhuang Brigade, 20 acres of cotton and wheat sets of farming, diseased plants rate of 95% or more, wheat received an average of 7.5 kg per mu; Honggou Brigade Gonggou commune, 20 acres of wheat due to dwarf hazards, the average Only about 20 kg per mu yield, cut serious.