用16%哒·四可湿性粉剂2000倍、2500倍、3000倍防治苹果全爪螨,药后3天防效分别为91.4%、87.6%、86.4%;药后7天分别为93.2%、90.7%、89.3%;药后14天分别为94.3%、92.4%、90.7%;显著优于20%四螨螓和20%哒螨灵。 The prevention and cure of apple mites by 2000, 2500 and 3000 times with 16% da four wettable powders were 91.4%, 87.6% and 86.4% after 3 days of treatment, respectively, 93.2% and 90.7 % And 89.3%, respectively; 94.3%, 92.4% and 90.7% after 14 days of treatment, respectively; significantly better than 20% Tetranychus militaris and 20% Pyridaben.