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进行了锰锌·霜脲72%可湿性粉剂防治黄瓜霜霉病田间药效试验,验证了该药对黄瓜霜霉病的防治作用。田间试验结果表明,锰锌·霜脲72%可湿性粉剂对黄瓜霜霉病具有良好的防治效果,在发病初期使用,每隔7d喷药1次,连续喷药2次,用量130～160g/667m2,可有效控制霜霉病的危害,持效期可达14d以上。
The effect of 72% wettable powder of MnZn / Urea cream on controlling cucumber downy mildew was tested in the field, and the preventive and curative effect of this medicine on cucumber downy mildew was verified. The results of field experiments showed that the 72% wettable powder of MnZn and Urea cream had a good control effect on cucumber downy mildew and was used at the initial stage of the disease. The spraying was carried out once every 7 days and the spraying was continued for 2 times with the dosage of 130 ~ 160g / 667m2, can effectively control the hazards of downy mildew, persist for up to 14d above.