Abstract
In an apiary composed of 14 hygienic and 7 non-hygienic colonies of Apis mellifera Linnaeus, 1758 the presence of visible and capped mummies was recorded, one hygienic and 4 non-hygienic colonies showed symptoms of chalkbrood. Twenty-eight days after a massive contamination of the colonies with pollen patties containing Ascosphaera apis Olive & Spiltoir, 1955, the situation was almost identical to that at the beginning: the same 4 non-hygienic colonies still were infected and one hygienic colony that was healthy became infected. The high proportion of hygienic colonies that eliminated the disease symptoms suggests that they could maintain themselves healthy in spite of the presence of colonies with chalkbrood in the apiary.
Highlights
fed pollen contaminated with Ascosphaera apis
Behavior genetics of nest cleaning in honey bees
Field assays for hygienic behavior in honey bees
Summary
La Cría Yesificada se encuentra distribuida en casi todo el mundo y en Uruguay se ha incrementado mucho en los últimos años siendo frecuente encontrar colonias sanas y enfermas en los apiarios de producción, fundamentalmente durante la primavera y el verano. La dispersión de A. apis entre colonias de un apiario es muy fácil debido a la deriva de abejas, al robo de miel y adicionalmente al intercambio de materiales de la colmena por los apicultores (MEHR et al, 1976; HERBERT et al, 1977; KOENIG et al.,1987). Se pretende determinar si el comportamiento higiénico es un componente de resistencia importante a la Cría Yesificada que permite a las colonias higiénicas, sin selección previa en este sentido, mantenerse sanas en apiarios que contienen colonias enfermas
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