Honey Bee Parasites, Pests, Predators and Diseases

American foulbrood (irregular brood pattern)

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.