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七十代初期,由于耕作制度的改变,小麦复种面积的扩大,感病品种的引进,防治措施的不当,致使赤霉病在安顺地区由轻发生变为重发生区,产量损失达30～40％。1975年和77年赤霉病大发生;80年后3年间,小麦播种面积大幅度下降,又有两年赤霉病大发生。安顺县和平坝县有不少农户,因误食病麦,引起严重中毒。因此对赤霉病的流行条件,作了两年的调查,试作初步剖析。
In the early seventies, due to the change of tillage system, the expansion of wheat multiplication area, the introduction of susceptible varieties and the improper prevention and control measures, the head blight changed from light to heavy occurrence in Anshun area with a yield loss of 30-40 %. In 1975 and 77 years, big blight occurred. In the three years after 80 years, the sown area of wheat dropped sharply, and two years of big blight occurred again. Heping County, Anshun and many farmers, due to eating sick wheat, causing serious poisoning. Therefore, the prevalence of scab mold conditions, made two years of investigation, preliminary analysis for trial.