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以80%代森锰锌有效成分1 800 g/hm2、50%烯酰吗啉250 g/hm2为对比药剂,供试药剂69%烯酰吗啉.代森锰锌设9321、242、1 553 g/hm23个用量处理,连喷两次,进行了防治黄瓜霜霉病的田间药效试验。结果表明,第2次施药后7 d以69%烯酰吗啉.代森锰锌1 2421、553 g/hm2处理的防效较高,分别达76.1%和78.2%,折合黄瓜产量分别较对照增产10.7%和10.2%,防效和保产效果均优于对比药剂。
80% Mancozeb active ingredient 1 800 g / hm2, 50% dimethomorph 250 g / hm2 as contrast agent for the test agent 69% dimethomorph. Mancozeb 9321,242,1 553 g / hm23 amount of treatment, with spray twice, conducted a cucumber downy mildew in the field of efficacy trials. The results showed that the control effect of 69% dimethomorph, mancozeb 1 2421 and 553 g / hm2 on the 7th day after the second application was 76.1% and 78.2% respectively, Control increased yield 10.7% and 10.2%, control effect and yield effect are better than the contrast agent.