Mechanism of resistance to synthetic pyrethroids in buffalo flies in south-east Queensland

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Rothwell, J. T., Morgan, J. A. T., James, P. J., Brown, G. W., Guerrero, F. D. and Jorgensen, W. K. (2011) Mechanism of resistance to synthetic pyrethroids in buffalo flies in south-east Queensland. Australian Veterinary Journal, 89 (3). pp. 70-72. ISSN 1751-0813

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Article Link: http://doi.org/10.1111/j.1751-0813.2010.00685.x

Abstract

Resistance to synthetic pyrethroids (SP) was first recorded in buffalo flies in Australia in 1980, associated with previous use of DDT and fenvalerate. By the 1990s, resistance was widespread. Resistance to SP in the related horn fly of the Americas is associated with kdr and super-kdr mutations in a gene encoding for a voltage-gated sodium channel. We describe 7–20-fold resistance to SP in buffalo flies from south-east Queensland, present evidence of flies that are heterozygous resistant at the kdr locus and show an increase in the frequency of the resistant allele 1 month after treatment of cattle with SP.

Item Type:	Article
Business groups:	Animal Science
Keywords:	buffalo fly cattle ectoparasites molecular genetics
Subjects:	Science > Entomology Veterinary medicine > Veterinary parasitology
Live Archive:	02 Apr 2019 02:48
Last Modified:	03 Sep 2021 16:45

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