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APN+DFZ、10%苯醚甲环唑FS、40%腈菌唑WP、30%苯醚·丙环唑EC四种药剂对苹果白粉病的防效及安全性的测试试验表明,从新增病叶数和病斑新增面积百分比两者来看,处理2(APN+DFZ 3 000倍)防治苹果白粉病效果最好,速效且持效期长,药后7d、14d新增病叶数均为-19叶,病斑新增面积百分比分别为-72.9%、-72.1%;处理4(40%腈菌唑WP 4 000倍)、处理5(30%爱苗3 000倍)效果次之;处理1(APN+DFZ 2 000倍)、处理3(10%世高2 000倍)防效较差。
APN + DFZ, 10% difenoconazole FS, 40% myclobutanil WP, 30% phenyl ether propiconazole EC four powdery mildew control efficacy and safety tests showed that from the newly added The results showed that the treatment 2 (APN + DFZ 3000 times) had the best effect on controlling powdery mildew of apple, which was quick and long-lasting, and the number of newly-increased leaf on the 7th day and the 14th day after treatment Were -19 leaves, and the new area percentages of lesions were -72.9% and -72.1% respectively. Treatment 4 (40% myclobutanil WP 4 000-fold) and treatment 5 ; Treatment 1 (APN + DFZ 2000 times), treatment 3 (10% of the world height 2000 times) control effect is poor.