mother colony

moth·er col·o·ny

a colony which gives rise to a secondary colony (a daughter colony), the latter growing on the surface of the former; the mother colony is larger than the daughter colony, and the characteristics of the colonies may differ.
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References in periodicals archive ?
urticae were collected from ornamentals grown at Saltillo Coahuila, Mexico to establish a mother colony (stock colony) on bean (Phaseolus vulgaris L.
Swarms of honey bees split off from their mother colony and go house-hunting, looking for a secure cavity in a tree or elsewhere that will make a good home for the new colony.
Unlike Apis, new colonies of stingless bees depend entirely for weeks or months upon the mother colony.