80%烯酰吗啉水分散粒剂田间防治黄瓜霜霉病的试验结果表明:该药对黄瓜植株安全无药害,且对黄瓜霜霉病有较好的防效;药剂处理后病情指数均不超过6.16;相对防效也均在65.63%以上;与空白对照相比早期产量增产率均超过9.20%。这表明80%烯酰吗啉水分散粒剂可作为防治黄瓜霜霉病的药剂选择之一,建议使用剂量为300～375 g/hm2。 80% dimethomorph water dispersible granules field cucumber downy mildew test results show that: the drug is safe and cucumber plant-free, and cucumber downy mildew have a good control effect; after treatment of the disease index Not more than 6.16; the relative control efficiency was above 65.63%; the early yield increase rate was over 9.20% compared with the blank control. This indicates that 80% dimethomorph water dispersible granules can be used as one of the choice of cucumber downy mildew, the recommended dosage is 300 ~ 375 g / hm2.