[Experimental study on cross-resistance of Culex pipiens pallens to 3 kinds of chemical pesticides].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
; 26(5): 531-3, 2014 Oct.
Article
in Zh
| MEDLINE
| ID: mdl-25782251
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 resistance 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 coefficients 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.CONCLUSION:
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.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Insecticide Resistance
/
Culex
/
Insecticides
Limits:
Animals
Language:
Zh
Journal:
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
Year:
2014
Document type:
Article