AFB has a distinctive smell
Larvae and pupae infected with AFB can exhibit a characteristic foul smell similar to dead fish (hence the name “foulbrood”).
The intensity of the smell varies considerably, depending on the number of infected larvae and pupae present and factors such as temperature.
Smell should therefore not be relied upon to determine the presence or absence of AFB, no matter whether the disease is in live colonies, dead colonies or stored combs.
The foul smell that can accompany AFB should not be relied upon to determine the presence or absence of AFB.