Summary.
Varroa reproduction is closely synchronized to the development of its host. In this study we present a new bioassay for field and laboratory tests to evaluate host factors triggering Varroa oogenesis. Female mites deprived of feeding activated oogenesis when perceiving larval volatiles. In laboratory assays the living L5-larva and pentane extracts of the larval cuticle had a clear activating effect. Wax and larval food did not elicit Varroa oogenesis. The activating components apparently are in the polar fraction of the cuticular volatiles. The consequences of this regulative mechanism for the host parasite relationship and prospects for further research are discussed.
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Rosenkranz, P., Garrido, C. Volatiles of the honey bee larva initiate oogenesis in the parasitic mite Varroa destructor . Evolutionary, Mechanistic and Environmental Approaches to Chemically-Mediated Interactions 14, 193–197 (2004). https://doi.org/10.1007/s00049-004-0278-0
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DOI: https://doi.org/10.1007/s00049-004-0278-0