caa a22 4500 445343028 CHVBK 20180317142819.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00436-010-2122-5 doi (NATIONALLICENCE)springer-10.1007/s00436-010-2122-5 Susceptibility of Varroa destructor (Acari: Varroidae) to synthetic acaricides in Uruguay: Varroa mites' potential to develop acaricide resistance [Elektronische Daten] [Matías Maggi, Sergio Ruffinengo, Yamandú Mendoza, Pilar Ojeda, Gustavo Ramallo, Iganazio Floris, Martín Eguaras] The purpose of this study was to estimate the acaricide susceptibility of Varroa destructor populations from Uruguay, which had never been exposed to synthetic acaricides. It was also to determine whether acaricide resistance to coumaphos occurred in apiaries in which acaricide rotation had been applied. Bioassays with acaricides against mite populations that had never been exposed to synthetic acaricides were performed, also against mite populations in which control failures with coumaphos had been reported. Additionally, coumaphos' effectiveness in honeybee colonies was experimentally tested. The lethal concentration that kills 50% of the exposed animals (LC50) for susceptible mite populations amounted to 0.15μg/Petri dish for coumaphos and to less than 0.3μg/Petri dish for the other acaricides. Coumaphos LC50 was above 40μg/Petri dish for resistant mites. The effectiveness of coumaphos in honeybee colonies parasitized by V. destructor ranged from 17.6% to 93.9%. LC50 for mite populations susceptible to the most commonly applied miticides was determined, and the first case of coumaphos resistance recorded in Uruguay was established. Springer-Verlag, 2010 Maggi Matías Arthropods Laboratory, School of Exact and Natural Sciences, Universidad Nacional de Mar del Plata, Funes, 3350, 7600, Mar del Plata, Buenos Aires, Argentina aut Ruffinengo Sergio School of Agrarian Sciences, Universidad Nacional de Mar del Plata, Ruta Nacional 226, Km. 73.5, CC 276 (B7620ZAA), Balcarce, Buenos Aires, Argentina aut Mendoza Yamandú INIA La Estanzuela, Colonia Department, Colonia, Uruguay aut Ojeda Pilar INIA La Estanzuela, Colonia Department, Colonia, Uruguay aut Ramallo Gustavo INIA La Estanzuela, Colonia Department, Colonia, Uruguay aut Floris Iganazio Dipartimento di Protezione delle Piante, Sezione di Entomologia Agraria, University of Sassari, Via E De Nicola, 07100, Sassari, Italy aut Eguaras Martín Arthropods Laboratory, School of Exact and Natural Sciences, Universidad Nacional de Mar del Plata, Funes, 3350, 7600, Mar del Plata, Buenos Aires, Argentina aut Parasitology Research Springer-Verlag 108/4(2011-04-01), 815-821 0932-0113 108:4<815 2011 108 436 https://doi.org/10.1007/s00436-010-2122-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00436-010-2122-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maggi Matías Arthropods Laboratory, School of Exact and Natural Sciences, Universidad Nacional de Mar del Plata, Funes, 3350, 7600, Mar del Plata, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Ruffinengo Sergio School of Agrarian Sciences, Universidad Nacional de Mar del Plata, Ruta Nacional 226, Km. 73.5, CC 276 (B7620ZAA), Balcarce, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Mendoza Yamandú INIA La Estanzuela, Colonia Department, Colonia, Uruguay aut NATIONALLICENCE 700 1- Ojeda Pilar INIA La Estanzuela, Colonia Department, Colonia, Uruguay aut NATIONALLICENCE 700 1- Ramallo Gustavo INIA La Estanzuela, Colonia Department, Colonia, Uruguay aut NATIONALLICENCE 700 1- Floris Iganazio Dipartimento di Protezione delle Piante, Sezione di Entomologia Agraria, University of Sassari, Via E De Nicola, 07100, Sassari, Italy aut NATIONALLICENCE 700 1- Eguaras Martín Arthropods Laboratory, School of Exact and Natural Sciences, Universidad Nacional de Mar del Plata, Funes, 3350, 7600, Mar del Plata, Buenos Aires, Argentina aut NATIONALLICENCE 773 0- Parasitology Research Springer-Verlag 108/4(2011-04-01), 815-821 0932-0113 108:4<815 2011 108 436 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer