Toxicity of pyrethroids to organophosphate-carbamate and DDT-resistant mosquitoes.

Type

Article

Date of Publication

1981

Original Publication

Mosquito News

Volume

41

Series / Issue

Issue: 1

Pages

143-150

Contributed by

American Mosquito Control Association

Notes

Author(s) - Priester, R. M., G. P. Georghiou, M. K. Hawley and M. E. Pasternak.

 

Abstract

Larvae of Culex quinquefasciatus Say and Cx. tarsalis Coquillett resistant to organophosphates by means of esterases were found to be fully susceptible to 26 synthetic pyrethroid insecticides that were examined [resistance ratios (RR) = 0.24 to 1.7]. However, Cx. quinquefasciatus resistant to propoxur and DDT, and Anopheles albimanus Wied. resistant to organophosphates, carbamates and DDT, were found to possess a low level of cross-tolerance to some of the pyrethroids. The available evidence indicates that this tolerance is due largely to the DDT resistance component of the strains.

Notes

Author(s) - Priester, R. M., G. P. Georghiou, M. K. Hawley and M. E. Pasternak.