Producción CyT
Proceed. of 3rd European Conference of Apidology - First report of Nosema ceranae in depopulated honey bee colonies in Argentina
Congreso
Fecha:
2008Editorial y Lugar de Edición:
--Resumen *
Argentina is one of the three biggest world honey producer and exporter countries. Bee losses due to depopulation syndrome have been detected during the last three years especially in located southern areas although reports exist all over the country with estimated losses of 30% total estimated hives (5 millions). Interior adult honey bees samples were randomly collected in 2006 and 2007 (n = 1,522 colonies), and the main honey bee pathogens were analyzed. Nosema species was determined by PCR for 18 Nosema spore positive samples (PCM). Nosema spores were observed in all the months with prevalence higher to 42% and maximum detected in austral spring of 2006 (88%) and austral summer 2007 (83%). Nosema ceranae was the only species detected. Samples came either from depopulated colonies (n = 15) or dead colonies (n = 3) and the quantified losses from the 18 apiaries were higher to 50% colonies. This is the first report of N. ceranae in European honey bees in Argentina and the most austral report of the presence of this microsporidian (40º06´00" S; 64º25´60" W), wich confirm the expansion and colonization of this emergent pathogen and its clearly relation with honey bee losses. Información suministrada por el agente en SIGEVAPalabras Clave
APIS MELLIFERASOUTHERN REPORTNOSEMA CERANAEDEPOPULATION