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Susceptibility of Brazilian samples ofBoophilus microplus to organophosphorus acaricides

Sensibilite D'Echantillons DeBoophilus Microplus Bresiliens Aux Acaricides Organophosphores

Susceptibilidad De Muestras Brasileras DeBoophilus Microplus A Los Acaricidas Organofosforados

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Summary

This paper describes the susceptibility of various samples ofBoophilus microplus from the southern region of Minas Gerais State in Brazil to the 4 commonest organophosphorus acaricides employed in the area. All samples showed some degree of resistance to each of the compounds used. The resistance factor varied from 1.42 to 132.90, being less in the case of dicrotophos and fenthion than with chlorpyrifos and coumaphos.

Résumé

Ce travail décrit la sensibilité de divers échantillons deBoophilus microplus de la partie Sud de l'Etat de Minas Gerais au Brésil à l'égard de quatre acaricides organophosphorés employés dans cette région. Tous les sujets ont montré un certain degré de résistance vis-à-vis de chacun des composés utilisés. Le facteur résistance (RF) a varié de 1,42 à 132,90, étant moindre dans le cas du Dicrotophos et du Fenthion que dans celui du Chlorpyrifos et du Coumaphos.

Resumen

Se describe la susceptibilidad de varias muestras deBoophilus microplus provenientes del sur del estado de Minas Gerais, a los 4 acaricidas organofosforados más comunmente utilizados en el área. Todas las muestras presentaron alguna resistencia a los acaricidas utilizados. El factor de resistencia (FR) varió de 1.42 a 132.90 siendo menor en el caso de Dicrotophos y Fenthion que con Chlorpyrifos y Coumaphos.

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Authors and Affiliations

  1. Departamento de Medicina Veterinária, Universidade Federal de Viçosa, 36570, Viçosa, MG, Brasil

    J. H. Patarroyo

  2. Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil

    J. O. Costa

Authors
  1. J. H. Patarroyo
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  2. J. O. Costa
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Patarroyo, J.H., Costa, J.O. Susceptibility of Brazilian samples ofBoophilus microplus to organophosphorus acaricides. Trop Anim Health Prod 12, 6–10 (1980). https://doi.org/10.1007/BF02242623

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  • DOI: https://doi.org/10.1007/BF02242623

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