Experimental study on cross-resistance of Culex pipiens pallens to 3 kinds of chemical pesticides
- VernacularTitle:淡色库蚊对3种化学杀虫剂交互抗性的实验研究
- Author:
Bin JIANG
;
Shigen LI
;
Xin QUAN
;
Qingjie XUE
;
Wenbin TAN
;
Yongchun LIU
;
Xinguo WANG
;
Huaiwei WANG
- Publication Type:Journal Article
- Keywords:
Culex pipiens pallens;
Chemical pesticide;
Cross-resistance
- From:
Chinese Journal of Schistosomiasis Control
2014;(5):531-533
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the cross-resistance of Culex pipiens pallens to common pesticides,so as to provide the evidence for improving the application of chemical pesticides. Methods The IV instar larvae of DDVP-resistant,propoxur-resistant and cypermethrin-resistant strains as well as the sensitive strain of Culex pipiens pallens were collected to detect the re-sistance to DDVP,propoxur and cypermethrin based on the WHO bioassay method. Results The resistance coefficients of DDVP-resistant strain to DDVP,propoxur and cypermethrin were 14.47,8.96 and 207.27 respectively. The resistance coeffi-cients of propoxur-resistant strain to DDVP,propoxur and cypermethrin were 3.27,6.93 and 8.65 respectively. The resistance coefficients of cypermethrin-resistant strain to DDVP,propoxur and cypermethrin were 2.93,1.61 and 501.11 respectively. Con-clusion The resistance and cross-resistance could be generated during the long-term application of a single kind of chemical pesticide,and we should pay more attention to the varieties and dosages of them.
