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Abstract

It addresses the importance of exports of live cattle to the United States, highlighting the business value that represents for Mexico's foreign exchange earnings by 700 billion per year for this purpose. Livestock marketing is hampered by sanitary barriers, such as tuberculosis (TB), brucellosis...

Author(s)
Sáenz Pardo, J. R. G.; Hernández Ortiz, R.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2012, 3, Suplemento 1, pp 1-8
Abstract

Three cattle farms with ticks, Rhipicephalus microplus, thought to be resistant to ivermectin in Yucatan, Mexico were studied (SFDO, SPN, LUADY). Each field-population was collected and tested twice several months apart. The larval immersion test was used on the progeny of collected adult females...

Author(s)
Perez-Cogollo, L. C.; Rodriguez-Vivas, R. I.; Ramirez-Cruz, G. T.; Miller, R. J.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2010, 168, 1/2, pp 165-169
Abstract

During experimental Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) infestation on cattle, approximately 5% of engorged female ticks showed symptoms of bacterial infection. The affected ticks were unable to oviposit, secreted a distinctive yellow exudate through the genital orifice and...

Author(s)
Miranda-Miranda, E.; Cossio-Bayugar, R.; Rosario Quezada-Delgado, M. del; Sachman-Ruiz, B.; Reynaud, E.
Publisher
Taylor & Francis, Abingdon, UK
Citation
Biocontrol Science and Technology, 2010, 20, 9/10, pp 1055-1067
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 aim of this study was to describe the genetics of amitraz resistance evolution and to obtain the independent genes number involved. Three Mexican R. microplus tick strains were used, one susceptible to all acaricides and two amitraz-resistant. Larvae were reared on isolated naïve-heifers and...

Author(s)
Fragoso-Sanchez, H.; Garcia-Vazquez, Z.; Tapia-Perez, G.; Ortiz-Najera, A.; Rosario-Cruz, R.; Rodriguez-Vivas, I.
Publisher
Academic Journals Inc., New York, USA
Citation
Journal of Entomology, 2011, 8, 3, pp 218-228
Abstract

A field survey was conducted to evaluate susceptibility of Rhipicephalus (Boophilus) microplus to cypermethrin on 49 farms in three areas of Yucatan, Mexico. The modified larval packet test was used to evaluate larval mortality at different cypermethrin concentrations. Dose-mortality regressions,...

Author(s)
Rodriguez-Vivas, R. I.; Hodgkinson, J. E.; Rosado-Aguilar, J. A.; Villegas-Perez, S. L.; Trees, A. J.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 184, 2/4, pp 221-229
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

Species identification and global positioning system coordinates of infestations of cattle fever ticks, Rhipicephalus (Boophilus) annulatus (Say) and Rhipicephalus (Boophilus) microplus (Canestrini), were determined for 790 specimens submitted to the National Veterinary Services Laboratory between...

Author(s)
Lohmeyer, K. H.; Pound, J. M.; May, M. A.; Kammlah, D. M.; Davey, R. B.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Medical Entomology, 2011, 48, 4, pp 770-774
Abstract

Rhipicephalus (Boophilus) microplus is an endemic cattle pest in tropical and subtropical regions of the world, causing major economic losses to cattle producers. Chemical acaricides have played a pivotal role in the control of R. (B.) microplus; however, as a consequence of extensive use of...

Author(s)
Rodríguez-Vivas, R. I.; Hodgkinson, J. E.; Trees, A. J.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2012, 3, Suplemento 1, pp 9-24
Abstract

The objectives of the present study were to (1) determine the status of resistance or susceptibility to ivermectin (IVM) in Rhipicephalus microplus tick populations in Veracruz, Mexico, (2) determine the level of resistance (resistance ratios [RR] and lethal concentrations for 50% [LC50] and 99%...

Author(s)
Fernández-Salas, A.; Rodríguez-Vivas, R. I.; Alonso-Díaz, M. A.; Basurto-Camberos, H.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 190, 1/2, pp 210-215

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