Brood Rearing in Honeybee Colonies from Late Autumn to Early Spring

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Abstract
From November to March in three consecutive winters, experimental colonies of honeybees were killed; eggs, larvae and pupae in them were counted, and adult bees were weighed. The average number of adult bees declined steadily from 20 800 in November to 12 000 in March. The amount of brood in the colonies was small prior to the winter solstice, but increased rapidly afterwards. It is believed that the brood-rearing cycle in the honeybee is controlled, at any rate in part, by changes in daylength.

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