简要阐述了蠕形螨的特性和对人类皮肤的危害，着重阐述了R-301除螨杀菌剂高效的驱灭螨虫性能和良好的配伍性和稳定性。
The high mite-killing ability, the excellent compatibility and stability of the R-301 mitecide are well elucidated.
目的观察灭蚴宁治疗蠕形螨病的效果及安全性。
Objective To evaluate the curative effect and safety of dibutyl phthalate on demodicidosis.
对灭扫利的测定，两地抗性倍数分别为9.6和1.9倍，试验站的棉叶螨已产生低水平抗性；
The Fenpropathrin resistance level are 9.6 and 1.9 fold, the leaf mites of the experimental field having low level resistance.
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