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Diseases of Honey Bees

American foulbrood (irregular brood pattern)

Picture 6 of 34

Brood combs in an infected colony have a scattered and irregular pattern of capped and uncapped cells. Infected cells are discolored, sunken, and often have punctured cappings. This "pepperbox" appearance contrasts with the yellowish-brown, convex, and entirely sealed cells of a healthy brood comb.