Hi Allen

Working as a NYS bee inspector, I saw AFB in all stages. The most contentious diagnosis I made was when I declared AFB in a hive that had uncapped larvae, melted to a coffee with cream color. There were faint white striations across the larvae. The beekeeper was doubtful, but in fact lab tests confirmed AFB in these larvae. There weren't very many, but in NYS one is enough to condemn the colony. As the disease progresses the larvae take on a darker color, like caramel. Finally, they reach the chocolaty  stage but that would be a very advanced case. I occasionally saw pupae with the characteristic tongue protruding, these were usually at the caramel color stage. European never shows these later symptoms, and is never ropy. 

Pete

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