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Abstract

Five strains of Rhipicephalus (Boophilus) microplus collected from Tamaulipas Mexico were tested for resistance against several classes of acaricides commonly used. All were resistant to fipronil. Four of five were co-resistant to permethrin and coumaphos in addition to being resistant to fipronil. ...

Author(s)
Miller, R. J.; Almazán, C.; Ortíz-Estrada, M.; Davey, R. B.; George, J. E.; León, A. P. de
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2013, 191, 1/2, pp 97-101
Abstract

Various acaricide-resistant strains of Rhipicephalus (Boophilus) microplus, representative of the major resistance mechanisms found in Mexico and Brazil, were exposed to spinosad using the Food and Agriculture Organization of the United Nations larval packet test and adult immersion test (AIT)....

Author(s)
Miller, R. J.; White, W. H.; Davey, R. B.; George, J. E.; Leon, A. P. de
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Medical Entomology, 2011, 48, 2, pp 358-365
Abstract

The cattle tick Boophilus microplus causes significant economic losses in cattle in the tropical areas of Central and South America. Acaricides are widely used to control tick infestations, with the consequent selection of tolerant and resistant subpopulations. Detoxifying enzymes, and esterases in ...

Author(s)
Villarino, M. A.; Wagner, G. G.; George, J. E.
Publisher
Kluwer Academic Publishers, Dordrecht, Netherlands
Citation
Experimental and Applied Acarology, 2002, 28, 1/4, pp 265-271
Abstract

From 1907 when the fever tick eradication campaign began until 1933, the tick eradication methods of dipping cattle in an acaricide or "pasture vacation" were enormously successful in eradicating southern cattle ticks [Rhipicephalus (Boophilus) microplus (Canestrini)], until failures began to occur ...

Author(s)
Pound, J. M.; George, J. E.; Kammlah, D. M.; Lohmeyer, K. H.; Davey, R. B.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Economic Entomology, 2010, 103, 2, pp 211-218
Abstract

Southern cattle ticks, Boophilus microplus (Canestrini) (Acari: Ixodidae), collected in Coahuila, Mexico, were determined to be resistant to permethrin. Discriminating concentration (DC) tests at the LC99 and 2X the LC99 of susceptible ticks produced 0 and 0.5% mortality, respectively, for...

Author(s)
Miller, R. J.; Rentaria, J. A. E.; Martinez, H. Q.; George, J. E.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Medical Entomology, 2007, 44, 5, pp 895-897
Abstract

Boophilus microplus, collected from Nuevo Leon, Mexico, were found to be highly resistant to diazinon but not highly resistant to coumaphos, suggesting that different mechanisms of resistance were present in these ticks than other Mexican organophosphate (OP)-resistant ticks reported previously....

Author(s)
Miller, R. J.; Li, A. Y.; Tijerina, M.; Davey, R. B.; George, J. E.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Medical Entomology, 2008, 45, 5, pp 905-911
Abstract

The objectives of this study were to determine the prevalence of antibodies against brucellosis, leptospirosis, infectious bovine rhinotracheitis virus, and bovine viral diarrhea virus (BVDV) in white-tailed deer (Odocoileus virginianus) in northeastern Mexico. Deer (n=521) were captured from...

Author(s)
Cantu, A.; Ortega-S., J. A.; Mosqueda, J.; Garcia-Vazquez, Z.; Henke, S. E.; George, J. E.
Publisher
Wildlife Disease Association, Lawrence, USA
Citation
Journal of Wildlife Diseases, 2008, 44, 4, pp 1002-1007
Abstract

Susceptibility to carbaryl in six Mexican strains of the southern cattle tick, Boophilus microplus (Canestrini), was evaluated with the Food and Agricultural Organization larval packet test. Tick strains from the cattle fever tick quarantine zone in Texas were more susceptible to carbaryl than to...

Author(s)
Li, A. Y.; Davey, R. B.; George, J. E.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Economic Entomology, 2005, 98, 2, pp 552-556
Abstract

Amitraz, a formamidine acaricide, plays an important role in the control of the southern cattle tick, Boophilus microplus (Canestrini), and other tick species that infest cattle, dogs, and wild animals. Although resistance to amitraz in B. microplus was previously reported in several countries, the ...

Author(s)
Li, A. Y.; Davey, R. B.; Miller, R. J.; George, J. E.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Medical Entomology, 2004, 41, 2, pp 193-200
Abstract

The San Roman strain of the southern cattle tick, Boophilus microplus, collected from Mexico was previously reported to have a high level of resistance to the organophosphate acaricide coumaphos. An oxidative detoxification mechanism was suspected to contribute to coumaphos resistance in this tick...

Author(s)
Li, A. Y.; Pruett, J. H.; Davey, R. B.; George, J. E.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Pesticide Biochemistry and Physiology, 2005, 81, 3, pp 145-153

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