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高粱丝黑穗病是高粱的主要病害之一.1974年开始发生,到1977年爆发成灾,辽阳市平均发病率为15.9%.1977年以来,我们在综合防治高粱黑穗病方面进行了调查、试验和示范,摸索出病害回升的原因(面积大,倒不开茬;忽视了药剂处理种子;致病菌生理小种发生了变化,致病力增强),也找出了相应的防治措施,基本控制了高粱黑穗病的蔓延,发病程度有所减轻.
Sorghum head smut is one of the major diseases of sorghum, which began in 1974 and broke out in 1977. The average incidence in Liaoyang was 15.9%. Since 1977, we investigated the comprehensive control of sorghum smut , Test and demonstration, to explore the reasons for disease recovery (large area, not stubble; ignore the agent to deal with seeds; pathogenic bacteria races have changed, increased pathogenicity), but also to find out the appropriate control measures , Basically controlled the spread of smut of sorghum, and the incidence was reduced.