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20%哒·螨砜WP100～300mg/L防治苹果红蜘蛛,既表现了良好的速效性又表现了一定的持效性,药后1～7d的防效为91.3%～98.5%,药后14d的防效为84.6%～88.7%。20%哒·螨砜WP200～300mg/L的防效与15%扫螨净2500倍液的防效相当,但以300mg/L防效最好。
20% pyridasulfuron WP100 ~ 300mg / L control apple spider mite, both showed good fast and performance of a certain degree of effectiveness, 1 to 7d after the drug control effect was 91.3% to 98.5%, 14d after drug treatment The control effect of 84.6% ~ 88.7%. 20% da mites sulfone WP200 ~ 300mg / L control effect and 15% sweeping mite net 2500 times the control effect is equivalent, but the best 300mg / L control effect.