First detection of Varroa destructor resistance to coumaphos in Argentina.
Exp Appl Acarol
; 47(4): 317-20, 2009 Apr.
Article
en En
| MEDLINE
| ID: mdl-19009360
ABSTRACT
In Argentina, studies on Varroa destructor resistance to coumaphos are still unknown. At present, high infestation levels of V. destructor are being detected in colonies of Apis mellifera after treatment with this acaricide. The aim of the present study was to determine the LC50 of coumaphos in V. destructor from four apiaries with high mite density after treatment with coumaphos. The LC50's were 112, 319, 127 and 133 microg/Petri dish for mites from the four apiaries. Significant LC50 differences were detected between resistant and susceptible mites. LC50 increased 197-559-fold when compared to the corresponding baseline, suggesting the development of resistance. These results are the first report of resistance to coumaphos in V. destructor in Argentina.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Plaguicidas
/
Cumafos
/
Ácaros
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
País/Región como asunto:
America do sul
/
Argentina
Idioma:
En
Revista:
Exp Appl Acarol
Asunto de la revista:
BIOLOGIA
/
PARASITOLOGIA
Año:
2009
Tipo del documento:
Article
País de afiliación:
Argentina
Pais de publicación:
HOLANDA
/
HOLLAND
/
NETHERLANDS
/
NL
/
PAISES BAJOS
/
THE NETHERLANDS