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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

The purpose of this study was to determine the effect of amitraz selection pressure on the development of resistance in field populations of Boophilus microplus in the Mexican tropics. Three farms (FA1, FA2 and FA3) in Yucatan, Mexico, were selected in this study. Amitraz was applied as a whole...

Author(s)
Rosado-Aguilar, J. A.; Rodriguez-Vivas, R. I.; Garcia-Vazquez, Z.; Fragoso-Sanchez, H.; Ortiz-Najera, A.; Rosario-Cruz, R.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2008, 152, 3/4, pp 349-353
Abstract

Southern cattle tick, Boophilus microplus, control in the Mexican tropics is based on the application by spray, dip or pour-on of acaricides. In Mexico the first report of ticks resistant to amitraz was reported in 2002. Amitraz resistance affecting the cattle industry of Yucatan State, Mexico, has ...

Author(s)
Rodríguez-Vivas, R. I.; Rodríguez-Arevalo, F.; Alonso-Díaz, M. A.; Fragoso-Sanchez, H.; Santamaria, V. M.; Rosario-Cruz, R.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2006, 75, 3/4, pp 280-286
Abstract

This manuscript provides a summary of the results presented at a symposium organized to accumulate information on factors that influence the prevalence of acaricide resistance and tick-borne diseases. This symposium was part of the 19th International Conference of the World Association for the...

Author(s)
Foil, L. D.; Coleman, P.; Eisler, M.; Fragoso-Sanchez, H.; Garcia-Vazquez, Z.; Guerrero, F. D.; Jonsson, N. N.; Langstaff, I. G.; Li, A. Y.; Machila, N.; Miller, R. J.; Morton, J.; Pruett, J. H.; Torr, S.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2004, 125, 1/2, pp 163-181
Abstract

The objective of this study was to document the first case in Mexico of amitraz resistance in Boophilus microplus taken from cattle. Samples of B. microplus were obtained from the municipality of Emiliano Zapata, Tabasco, where there had been reports of lack of control with amitraz. The tick strain ...

Author(s)
Soberanes Céspedes, N.; Santamaría Vargas, M.; Fragoso Sánchez, H.; García Vázquez, Z.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Técnica Pecuaria en México, 2002, 40, 1, pp 81-92
Abstract

The efficacy of Metarhizium anisopliae on the control of Boophilus microplus in cattle infested naturally in the Mexican tropics was evaluated. The study was carried out on a ranch in Veracruz, Mexico. Twenty steers were randomly allocated into two groups of 10 cattle. Animals were naturally...

Author(s)
Alonso-Díaz, M. A.; García, L.; Galindo-Velasco, E.; Lezama-Gutierrez, R.; Angel-Sahagún, C. A.; Rodríguez-Vivas, R. I.; Fragoso-Sánchez, H.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2007, 147, 3/4, pp 336-340
Abstract

The first objective was laboratory evaluation of the virulence of 53 Mexican isolates of fungi against larvae of Rhipicephalus (Boophilus) microplus. Thirty-three isolates of Metarhizium anisopliae var. anisopliae (Metschnickoff) Sorokin (Hypocreales: Clavicipitaceae) and 20 isolates of Isaria (...

Author(s)
Ángel-Sahagún, C. A.; Lezama-Gutiérrez, R.; Molina-Ochoa, J.; Pescador-Rubio, A.; Skoda, S. R.; Cruz-Vázquez, C.; Lorenzoni, A. G.; Galindo-Velasco, E.; Fragoso-Sánchez, H.; Foster, J. E.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2010, 170, 3/4, pp 278-286
Abstract

A cross-sectional study was carried out in order to investigate the association between management risk factors and the prevalence of organophosphate (OP) and synthetic pyrethroid (SP) resistance in Boophilus microplus ticks in Yucatan State, Mexico. Ninety-eight cattle ranches were randomly...

Author(s)
Rodriguez-Vivas, R. I.; Alonso-Díaz, M. A.; Rodríguez-Arevalo, F.; Fragoso-Sanchez, H.; Santamaria, V. M.; Rosario-Cruz, R.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2006, 136, 3/4, pp 335-342

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