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采用田间小区试验的方法,研究25%甲霜灵.烯酰吗啉叶面喷雾防治马铃薯晚疫病的效果。试验结果表明,当25%甲霜灵.烯酰吗啉有效剂量为281.25 g/hm2时,对马铃薯晚疫病的防治效果达81.85%,与对照药剂25%甲霜灵和50%烯酰吗啉的防治效果相当。生产中可以选用该药剂与对照药剂交替使用。
Field experiment was conducted to study the effect of metalaxyl foliar spray on preventing late blight of potato by 25% metalaxyl. The results showed that when the effective dose of 25% metalaxyl was 281.25 g / hm2, the control effect on late blight of potato was 81.85%. Compared with the control agent 25% metalaxyl and 50% dimethomorph The control effect is quite. The production of the drug can be used alternately with the control agent.