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１９９２ 年以来通过调查和试验表明，万县山区玉米丝黑穗病的发病率随海拔高度的增加有加重的趋势。防效试验结果表明，１５ ％ 粉锈宁防效最佳。其中以每千克玉米种子拌种１５ ％ 粉锈宁较为经济有效，防治效果在８５ ％ ～８８ ％ 之间。重病区发病率由１４－３ ％ 下降到１－６ ％ 。挽回粮食损失８６８６－９７ 万ｋｇ。在拌种方法上以即浸即拌的方法为宜。
Since 1992, surveys and experiments show that the incidence of maize smut in Wanxian Mountain tends to increase with altitude. Control effect test results show that 15% triadimefon best effect. Which per kilogram of corn seeds seed dressing 15% of the triadimefon is more cost-effective, control effect of 85% to 88%. The incidence of severe ward decreased from 14-3% to 1-6%. Reclaim food loss of 86,886-97 million kg. In the seed dressing method that is immersed that is suitable for mixing method.