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Abstract

The objective of this study was to assess the percentage of resistance of H. irritans by means of an in vitro test of mortality percentage to permethrin (2.5 and 6.0 µg/cm2) and diazinon (0.01 and 0.06 µg/cm2). Flies were collected from 14 beef cattle production units. A detailed survey on...

Author(s)
Maldonado Simán, E.; Bermúdez-Villanueva, L.; Apodaca Sarabia, C.; García Vázquez, Z.; Sumano López, H.; Gutiérrez Ornelas, E.
Publisher
Revista Veterinaria-Mexico, Facultad de Medicina Veterinaria y Zootecnia, Mexico City, Mexico
Citation
Veterinaria México, 2005, 36, 2, pp 217-227
Abstract

A dairy farm with 510 Holstein cows in milk production, in which insecticide was not applied throughout the study, was visited weekly from March 1999 to March 2001, selecting on each occasion ten percent of the dairy cows for adult horn fly counts on direct observation. Weekly average fly numbers...

Author(s)
Cruz-Vázquez, C.; Ramos Parra, M.; García-Vázquez, Z.; Perales Segovia, C.; Mata, D.
Publisher
Revista Veterinaria-Mexico, Facultad de Medicina Veterinaria y Zootecnia, Mexico City, Mexico
Citation
Veterinaria México, 2003, 34, 4, pp 315-322
Abstract

The aim of this study was to determine resistance to the pesticides cypermethrin (pyrethroid) and diazinon (phosphate) in the horn fly (Haematobia irritans) in the state of Tamaulipas, Mexico. A total of 36 farms were evaluated: 11 in the north, 14 in the central and 11 in the southern part of the...

Author(s)
Almazán García, C.; Cantú Covarruvias, A.; Vega Flores, A.; García Vázquez, Z.; Kunz, S.; Medellín Ledezma, A.
Publisher
Revista Veterinaria-Mexico, Facultad de Medicina Veterinaria y Zootecnia, Mexico City, Mexico
Citation
Veterinaria México, 2004, 35, 3, pp 237-244
Abstract

The purpose of this study was to conduct a survey for the susceptibility of the horn fly, Haematobia irritans, populations to permethrin on dairy cattle from Aguascalientes, Mexico. Samples of populations of horn flies at 25 dairies were exposed to two discriminating doses (2.5 and 6.0 µg/cm2) on...

Author(s)
Cruz-Vázquez, C.; Altamira, G.; Ramos, M.; Medina, L.; Garcia-Vazquez, Z.; George, J.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Medical Entomology, 2002, 39, 6, pp 939-941
Abstract

The aim of the study was to study the annual distribution of the horn fly, H. irritans (L.), in confined dairy cattle in the State of Aguascalientes in Mexico. Three dairy farms which had 92, 165, and 490 Holstein cows in milk production were selected. Maintenance took place in a free-pen housing...

Author(s)
Cruz-Vázquez, C.; Bautista Hernández, J.; Vitela Mendoza, I.; Ramos Parra, M.; Quintero Martínez, M. T.; García Vázquez, Z.
Publisher
Revista Veterinaria-Mexico, Facultad de Medicina Veterinaria y Zootecnia, Mexico City, Mexico
Citation
Veterinaria México, 2000, 31, 3, pp 195-199
Abstract

60 randomly selected farms in Aguascalientes that kept Holstein cows in free-pen housing systems were visited once a month from May to July 1997. On each farm, 10 milk-producing cows were selected at random and flies were collected from the dorsum, flank and front of the legs for identification. ...

Author(s)
Cruz-Vázquez, C.; Vitela-Mendoza, I.; Ramos-Parra, M.; Quintero-Martínez, M. T.; García-Vázquez, Z.
Citation
Veterinaria México, 1999, 30, 2, pp 205-208
Abstract

The purpose of this work was to study the population dynamics of the horn fly Haematobia irritans in a bovine herd from Soto la Marina in the State of Tamaulipas in Mexico. Horn flies were counted in 12 bovines without pesticide treatment during September 1998 to August 1999. The correlation...

Author(s)
Almazán García, C.; Castillo Salas, S.; Loredo Osti, J.; García Vázquez, Z.
Publisher
Revista Veterinaria-Mexico, Facultad de Medicina Veterinaria y Zootecnia, Mexico City, Mexico
Citation
Veterinaria México, 2001, 32, 2, pp 149-152

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