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铁岭市种畜场在市植保站的指导下,1989年应用齐齐哈尔化工厂生产的DTM_2(百菌通)可湿性粉剂大面积防治大葱紫班病,取得较理想的效果。经多点调查证明,施用DTM_2可湿性粉剂防治大葱紫斑病后,病情指数由39.5％下降到24.1％,严重率由56.7％下降到33.5％。鲜葱亩产比对照提高250公斤,增产率13.8％。
Under the guidance of the Plant Protection Station of Tieling City, Tieling City breeding stall was used to control the squamous-blooded squamous-head disease in large area in 1989 with the application of DTM_2 WPM produced by Qiqihar Chemical Plant, achieving satisfactory results. After investigation, it was proved by multi-point investigation that the disease index decreased from 39.5% to 24.1% and the seriousness rate dropped from 56.7% to 33.5% after applying DTM_2 wettable powder to control purple spot disease of onion. Fresh onion per mu increased by 250 kg compared with the control, an increase of 13.8% yield.