溴虫氟苯双酰胺与氟唑酰胺生物活性比较

Comparison of biological activities of broflanilide and fluxametamide

[目的]明确作为γ-氨基丁酸(GABA)门控氯离子通道变构调节剂类杀虫剂的溴虫氟苯双酰胺和氟唑酰胺的生物活性差异。[方法]采用浸虫浸叶、喷雾法等测定2个杀虫剂对小菜蛾、二化螟、烟粉虱、桃蚜、西花蓟马和朱砂叶螨的生物活性。[结果]2个杀虫剂对小菜蛾、二化螟、烟粉虱、桃蚜和西花蓟马的LC_(50)值均在1.7 mg/L以下,溴虫氟苯双酰胺杀虫活性相对更高。氟唑酰胺对朱砂叶螨活性较高,而溴虫氟苯双酰胺活性较低。[结论]2个药剂均可用于农业害虫的防治,氟唑酰胺还可用于害螨的防治。

[Aims]This study aims to clarify the differences in biological activities between broflanilide and fluxametamide as gamma-aminobutyric acid(GABA)gated chloride channel receptor allosteric modulators.[Methods]The laboratory activity of the two insecticides to Plutella xylostella,Chilo suppressalis,Bemisiatabaci Gennadius,Myzus persicae,Frankliniella occidentalis and Tetranychus cinnabarinus were determined by means of leaf immersion and spray methods.[Results]The LC_(50)values of the two insecticides against P.xylostella,C.suppressalis,B.Gennadius,M.persicae and F.occidentalis were all below 1.7 mg/L,and the insecticidal activity of broflanilide was relatively higher than that of the other one.The activity of fluxametamide against T.cinnabarinus was higher than that of broflanilide.[Conclusions]Both of the insecticides can be used for the control of agricultural pests,and fluoxazolamide can also be used to control mites.