【摘要】 采用1%蛇床子素水乳剂进行了防治黄瓜霜霉病2a4地田间药效试验。试验结果表明,1%蛇床子素水乳剂33mg/kg在田间施药3次后第7天与第10天防效均在70%以上,与对照69%烯酰吗啉862.5mg/kg可湿性粉剂防效相当。试验期间在供试剂量下没有发现黄瓜发生药害现象。更多还原

【Abstract】 Field experiments of 1% osthol EW against Pseudoperonospra cubensis were carried out at 4 regions in 2 a. Results showed that the efficacy of 1% osthol EW 33 mg/kg was up to 70% 7 d or 10 d after treatment 3 times, which was similar to the efficacy of 69% dimethomorph WP 862.5 mg/kg. Protective effect of cucumber was efficacious and there were no phytotoxicity during the trial periods.更多还原