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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 the work was to study the annual variation of S. calcitrans (L.) adult stage infestation in Aguascalinetes, Mexico. Three dairy farms which maintained Holstein cows in free-pens housing were selected; throughout the study the farmers did not apply insecticide treatment. The dairy farms...

Author(s)
Cruz-Vázquez, C.; Martínez Rangel, S.; Vitela Mendoza, I.; Ramos Parra, M.; Quintero Martínez, M. T.; García Vázquez, Z.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Técnica Pecuaria en México, 2000, 38, 2, pp 135-142