Efficacy of some pyrethroids against a strain of the rabbit ear mite (Psoroptes cuniculi): An unusual cross-resistance pattern

László Pap, Péter Sárközy, Róbert Farkas, Edit Bleicher, András Szegö

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

An in vitro immersion bioassay was used to compare the efficacy of selected pyrethroids against a deltamethrin-resistant strain of rabbit ear mite (Psoroptes cuniculi). A lack of cross-resistance between bromo (deltamethrin) and chloro analogues (cypermethrin) of α-cyano-3-phenoxybenzyl-dihalovinyl-dimethylcyclopropane carboxylate was detected. Whereas deltamethrin proved to be inactive (48-h mortality 21.9% at 1000 mg/kg), each cypermethrin isomer mixture tested, including alpha-cypermethrin [1R(cis) α S + 1S(cis) α R] and theta-cypermethrin [1R(trans) α S + 1S(trans) α R] and their mixture at a ratio of 4/6, beta-cypermethrin, showed high efficiency (48-h mortality ≤ 95% at 1000 mg/kg).

Original languageEnglish
Pages (from-to)203-205
Number of pages3
JournalParasitology research
Volume83
Issue number2
DOIs
Publication statusPublished - Feb 27 1997

ASJC Scopus subject areas

  • Parasitology
  • veterinary(all)
  • Insect Science
  • Infectious Diseases

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