Fecha/hora: 16/06/2024 05:00:47

Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 30/09/2014
Fecha de la última actualización: | 10/02/2020
Autoria: | MAGGI, M.D..; RUFFINENGO,  S.R.; MENDOZA, Y.; OJEDA,  P.; RAMALLO, G.; FLORIS , I.; EGUARAS , M.J.
Afiliación: | YAMANDU MENDOZA SPINA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; GUSTAVO NOEL RAMALLO MEDINA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay.
Título: | Susceptibility of varroa destructor (Acari: Varroidae) to synthetic acaricides in Uruguay: varroa mites' potential to develop acaricide resistance.
Año de publicación: | 2011
Fuente/Imprenta: | Parasitology Research, v.108, n.4, p.815-821, 2011.
DOI: | 10.1007/s00436-010-2122-5
Idioma: | Inglés
Contenido: | Abstract: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 (LC(50)) for susceptible mite populations amounted to 0.15 ?g/Petri dish for coumaphos and to less than 0.3 ?g/Petri dish for the other acaricides. Coumaphos LC(50) was above 40 ?g/Petri dish for resistant mites. The effectiveness of coumaphos in honeybee colonies parasitized by V. destructor ranged from 17.6% to 93.9%. LC(50) for mite populations susceptible to the most commonly applied miticides was determined, and the first case of coumaphos resistance recorded in Uruguay was established.
Palabras-Clave: | APIS MELLIFERA; COUMAPHOS; HONEYBEE COLONI; MITE POPULATION; VARROA; VARROA DESTRUCTOR; VARROIDAE.
Thesagro: | ENFERMEDADES DE LAS ABEJAS.
Categoría del tema: | L73 Enfermedades de los animales
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (100324-1) - PXI - AP - DD -  -  -  - DIS