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Subject:
From:
Peter L Borst <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Tue, 20 Jan 2009 21:04:06 -0500
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I just received this press release, which I translated from the Spanish

"The collapse of hives due to Nosema ceranae in field conditions has been
documented"

The scientific journal "Environmental Microbiology" has accepted two new
works on the parasite Nosema ceranae and colony collapse in beehives for
publication.



The first study ("Colony collapse in professional Apiaries") conducted by
the Center Apícola de Castilla-La Mancha, describes two solid cases of the
clinical evolution of colony collapse in hives of professional beekeepers.
They detected the presence of the parasite Nosema ceranae appear without
other significant pathogens or neonicotinoid pesticides that the collapse
could be attributed to. Treatment with fumagillin avoided loss of the
remaining surviving hives. This is the first case in the world that
documents colony collapse of beehives due to N. ceranae in professionals
beekeepers' hives and field conditions.

The other study ("South American native Bumblebees infected by Nosema
ceranae, an emerging pathogen of honey bees"), described for the first time
an infection by N. ceranae of three species of bumble bees (Bombus) native
to Argentina.

http://www.agrodigital.com/

original:

Documentado el despoblamiento de las colmenas debido a Nosema ceranae en
condiciones de campo.

La revista científica Environmental Microbiology ha aceptado para su
publicación dos nuevos trabajos relacionados con el parásito Nosema ceranae
y con el despoblamiento de las colmenas.

En el primero de los estudios (Colony collapse in professional apiaries),
realizado por el Centro Apícola de Castilla-La Mancha, se describe la
evolución clínica del despoblamiento en dos casos concretos de apicultores
profesionales, en los que se detectó la presencia del parásito Nosema
ceranae sin que aparecieran otros patógenos significativos o pesticidas
neonicotinoides que pudieran justificar el despoblamiento. El tratamiento
con fumagilina evitó la pérdida de los restos supervivientes de las
colmenas. Se trata del primer caso en todo el mundo en que se documenta un
síndrome de despoblamiento de las colmenas debido a N.ceranae en apicultores
profesionales y en condiciones de campo.

En el otro estudio (South American native bumblebees infected by Nosema
ceranae, an emerging pathogen of honey bees), se describe por primera vez la
infección por N.ceranae en tres especies de abejorros (Bombus) nativas de
Argentina.

-- 
Peter L Borst
Danby, NY  USA
www.people.cornell.edu/pages/plb6

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