Foto cuadro de cría en colmena zanganera

viernes 19 de octubre de 2012
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Foto cuadro de cría en colmena zanganera



When a colony becomes queenless, the ovaries of several workers develop and workers begin to lay unfertilized eggs. Normally, development of the workers’ ovaries is inhibited by the presence of brood and the queen and her chemicals. The pre

sence of laying workers in a colony usually means the colony has been queenless for several weeks. However, laying workers also may be found in normal “queenright” colonies during the swarming season and when the colony is headed by a poor queen. Colonies with laying workers are recognized easily: there may be anywhere from five to fifteen eggs per cell and small-bodied drones are reared in worker-sized cells. In addition, laying workers scatter their eggs more randomly over the brood combs, and eggs can be found on the sides of the cell instead of at the base, where they are placed by a queen. Some of these eggs do not hatch, and many of the drone larvae that do hatch do not survive to maturity in the smaller cells.