Chilled brood is a condition in honeybee colonies where larvae and pupae perish because the hive temperature drops below the necessary thermal threshold. This issue typically arises during early spring when small populations struggle to maintain heat during sudden weather fluctuations or improper hive management. Beekeepers can identify this problem by observing discolored, shrunken brood on the outer edges of frames or a patchy brood pattern that lacks the "ropy" texture of infectious diseases. To mitigate losses, it is essential to reduce hive volume, provide supplemental feeding, and avoid lengthy inspections that let heat escape. While there is no direct cure for the dead brood, maintaining a dry, insulated environment helps the surviving bees recover and prevents further mortality. Proper care ensures the colony has enough energy and density to protect its developing young from lethal temperature drops.
