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Informed Discussion of Beekeeping Issues and Bee Biology

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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:
Fri, 2 Dec 2011 16:35:21 -0500
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The present study demonstrates the central role of the
queen in the evolution of N. ceranae infection of honey
bee colonies. Indeed, the removal of the queen and
the subsequent replacement with a younger queen
decreased the proportion of Nosema-infected forager and
house bees, which maintained the overall infection at a
level compatible with colony viability.

The emergence of brood is the primary
natural defence against Nosema, allowing replacement of
infected bees with healthy young bees, and thus, colonies
with vigorous young queens are less prone to suffer
Nosema infection

Hence, to maintain colony
health and survival, and to increase strength and productivity,
it is essential to ensure the presence of young productive
queens in colonies by regular replacement on an
annual or biannual basis. 

This operation may be also beneficial to prevent
health problems in the brood and, as demonstrated here,
to control infection by Nosema and its deleterious effects
at the colony level.

The effect of induced queen replacement on Nosema
spp. infection in honey bee (Apis mellifera iberiensis) colonies
Cristina Botías, et al in Environmental Microbiology (2011)
For correspondence E-mail mhiges (at) jccm.es

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