Brood of Apis mellifera uncapped by workers. Pupae seem to develop normally within these uncapped cells. The significance of this is not clear. Some think bees maybe uncapping the cells when they detect varroa mites there. It is true also in Apis cerana this phenomenon is more common, where varroa is not a problem. MSU apiary. July 17, 2002.

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Wednesday 17 July 2002

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Thursday 24 February 2011

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