Psoroptes ovis

Medición in vitro de la susceptibilidad y determinación de la resistencia relativa a acaricidas

Authors

  • J.R. Xavier Instituto de Parasitologia, Facultad de Veterinaria, Universidad de la República. Alberto Lasplaces 1550. Montevideo, Uruguay
  • L.M. Lavarello Cátedra de Bioestadística, Facultad de Veterinaria, Universidad de la República.
  • F.L. Etchegaray Instituto de Parasitologia, Facultad de Vetarinaria, Universidad de la República.
  • R.N. Moller Dirección de Sanidad Animal, Ministerio de Ganadería, Agricultura y Pesca. Dirección Postal: Casilla de Correos No. 16.045. Montevideo. Uruguay.

Keywords:

Insecticide resistance, Susceptibility, Acari

Abstract

Groups of 110 ovigerous females from two strains of Psoroptes ovis (Hering) were dipped, confined in pairs of paper envelopes by means of a vacuum system, into a series of different concentrations of lindane, diazinon and pirimiphos ethil. They were kept at 35° C and 80-90 0/0 R.H. for 24 hours and the death rate was computed.

A strain (Facultad) was characterized according to lindane (LC50 =104.5 ppm; LCgg = 204.3 ppm); diazinon (LC50 =0.57 ppm; LCgg =0.98 ppm) and pirimiphos ethil (LC50 =0.13 ppm; LCgg =0.42 ppm), and used as a reference.

A relative resistance was diagnosed in a strain under research (Tranqueras) with the following factors of resistance: lindane 2,5; diazinon 69 and pirimiphos ethil 796.

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Published

1987-01-01

How to Cite

Xavier, J., Lavarello, L., Etchegaray, F., & Moller, R. (1987). Psoroptes ovis: Medición in vitro de la susceptibilidad y determinación de la resistencia relativa a acaricidas. Veterinaria (Montevideo), 23(96), 14–16. Retrieved from https://revistasmvu.com.uy/index.php/smvu/article/view/911

Issue

Vol. 23 No. 96 (1987): Enero - marzo

Section

Original Articles

License

Copyright (c) 1987 Sociedad de Medicina Veterinaria del Uruguay

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.