Ensure strong colony population

Maintaining a strong colony population is a natural defense against chilled brood. Stronger colonies have more bees to generate heat and regulate hive temperature. A populous colony is better able to buffer against temperature fluctuations and maintain a warm brood nest, even in cold weather. Beekeepers can promote strong colonies through good nutrition, disease and pest management, and by combining weak colonies in the fall to create stronger overwintering units. Strong colonies are inherently more resistant to chilled brood and other temperature-related challenges.