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室内生测试验结果表明，氟吗啉对黄瓜霜霉病、葡萄霜霉病、番茄晚疫病、辣椒疫病、大豆疫霉根腐病具有较好的杀菌活性。５０ｍｇ／ｌ浓度下对黄瓜霜霉病菌孢子萌发抑制率为９３．５％，１００ｍｇ／ｌ浓度下对黄瓜霜霉病保护效果为１００％，治疗效果为９２．３％。
Laboratory bioassay results showed that flumorph had good bactericidal activity against cucumber downy mildew, grape downy mildew, late blight of tomato, pepper blight and soybean root rot. The inhibitory rate of spore germination of cucumber downy mildew was 93.5% under the concentration of 50 mg / l. The protective effect of 100 mg / l was 100% against cucumber downy mildew and the therapeutic effect was 92.3%.