How long do the spores of American Foulbrood survive in a beehive?

The spores of American Foulbrood (AFB) can survive for an extended period, and the correct choice reflects that they can live in a beehive environment for up to 30 years. This longevity is significant because it poses a serious risk to bee colonies; once a hive is infected, the spores can persist even after the current bees are gone, creating a continuous source of infection for future colonies that might occupy that hive or for beekeepers who might use contaminated equipment.

Understanding the duration that these spores can remain viable underscores the importance of strict hygiene practices in beekeeping, such as proper cleaning of equipment and the disposal of any infected hives, to prevent the spread of this disease. The extended survival of AFB spores is a key reason why it is considered one of the most serious diseases affecting honey bees, with the potential for devastating impacts on bee populations if left unmanaged.