定虫隆

前言：2，3-二氯-5-三氟甲基吡啶是合成农药杀虫剂定虫隆、除草剂吡氟氯禾灵和杀菌剂氟啶胺的关键中间体。

Abstrat : 2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron , herbicide haloxyfop and bactericide fluazinam .

增效剂的比例不同，增效的幅度也不同，质量比为5∶1的混配增效作用比3∶1的更明显，增效倍数随小菜蛾对定虫隆抗性水平的提高而增加。

It also provided that different proportion of synergist had different effect , the effect of 5 ∶ 1 was more significantly than that of 3 ∶ 1.The synergism effect was improved by higher resistant level of diamondback moth to chlorfluazuron .

小菜蛾对定虫隆（Chlorfluazuron）、Dipel和爱力螨克（Avermectin）敏感；

The diamondback moth to Chlorfluazuron , Dipel and Avermectin ;

建立了测定甘蓝中定虫隆残留量的反相高效液相色谱方法。

A high performance liquid chromatography ( HPLC ) technique was developed for determining residue of chlorfluazuron insecticide in Chinese cabbage .