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Drone brood combs are highly attractive toVarroa mites. In the absence of other brood cells, they are entered by a high proportion of the Varroa population within a short time. The effectiveness of varroosis control with drone brood trapping combs (DTCs) in colonies without own brood was tested under conditions of normal bee management.Seventeen three story A m carnica colonies were split and the...
The performance of honeybee colonies is maternally determined by the queen, paternally by several drones which had participated in mating the queen. The paternal contributions, distributed between different workers, might interact in a way that the colony performances deviate from that expected from simple addition of the respective contributions. Within a 2-year program hybrid queen breeding program...
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