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Detección de enfermedades en abejas africanizadas en Costa Rica

Authors: Calderón, Rafael A.; Fallas, N.; Sánchez, L.;

Detección de enfermedades en abejas africanizadas en Costa Rica

Abstract

Losreportes sobre la presencia de enfermedades en abejas africanizadas en Costa Rica s son escasos. Si bien es cierto se han realizado estudios para determinar su prevalencia, la información ha sido aislada y de poca trascendencia. En este estudio, se determinó la prevalencia de las principales enfermedades que afectan a las abejas adultas en Costa Rica, realizando un muestreo a nivel nacional entre los meses de Agosto-Diciembre de 2006. Se analizaron, mediante técnicas de laboratorio, 262 muestras de abejas adultas, pertenecientes a 129 apicultores, y provenientes de San José, Puntarenas, Guanacaste, Cartago y Alajuela. Se determinó una alta prevalencia de varroosis (42.0%) y nosemiosis (28.0%); mientras que únicamente un 1.1% de las muestras fue positiva para acariosis. Un 49.0% (n= 110) de las muestras positivas a Varroa, presentó un nivel de infestación leve, mientras que un 18.2% presentó un nivel fuerte (superior al 10.0%). La mayor prevalencia de Nosema correspondió al mes de Noviembre; mientras que acariosis se diagnóstico únicamente en Acosta, Orotina y Santa María de Dota.ABSTRACTThere are few reports concerning the occurrence of adult bee diseases in africanized bees in Costa Rica. In our study, conducted between August and December 2006, 262 AHB colonies belonging to 129 beekeepers from different geographic areas of Costa Rica were randomly sampled for nosemiasis, acariosis and varroosis. Most adult bees samples were taken from colonies not suffering from symptoms of any disease and collected from the broodnest of each colony. Based on our data, we can indicate that 42.0% and 28.0% of the samples were positive to Varroa mites and nosemiasis, respectively. A low prevalence of acariosis was found. Most of the samples positive to Varroa (n=110) showed a low mite infestation level, whereas 18.2 % had a high level. The prevalence of nosemiasis disease was greater in November. Only in Acosta, Orotina and Santa María de Dota, we found the presence of acariosis. These results provide a clear evidence of a high prevalence of Nosema disease and varroa mites and the low presence of acariosis in africanized bees in Costa Rica.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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