1.Agro-technical Extension Center in Huangzhong,Huangzhong,Qinghai 811605; 2.Institute of Plant Protection,Qinghai Academy of Agricultural and Forestry Science,Xining,Qinghai 810016
Effect of different concentration of 8% flusilazole microemulsion for powdery mildew resistance in cucumber field text on the preventive effect were studied.The results showed that it was the good control efficiency of field test to cucumber powdery mildew as it was early stage with 8% myclobutanil ES 60~90 g/hm2 added water 750 kg.Three times were sprayed each 7 days.The control efficiency was 77.46%~80.94% after 7 days,and it was safe to cucumber.