通过设置不同浓度梯度和对照研究螺螨酯·哒螨灵在大田环境下的除螨效果发现,防治柑橘红蜘蛛,其速效性和持效性都比较好,持效期可达30天以上;同时,对供试作物柑橘施用安全,具有一定的耐雨水冲刷能力。从药效和经济角度考虑,推荐使用浓度为44.8-67.5毫克/千克,试验期间未发现对其他病虫害和其他非靶标生物的影响。试验药剂和对照药剂对植株均无药害现象。27%螺螨酯·哒螨灵悬浮剂。 By setting different concentration gradients and comparing the mite effect of spirodiclofezin and pyridaben in the field environment, we found that the control and the holding efficiency of the spider mite are good and the holding time is up to 30 days. At the same time, citrus for the trial application security, with some resistance to rain erosion. From a pharmacodynamic and economic point of view, a recommended concentration of 44.8-67.5 mg / kg was tested for no effect on other pests and other non-target organisms. The test and control agents have no phytotoxicity on plants. 27% Spirodiclofenzin pyridaben suspension.