Re: Preparing a small hive for winter
i agree with frank about the poor prognosis for this colony making it through winter.
given the highly contagious nature of efb the greater concern is allowing the bacteria to be spread from this one to any nearby colonies, and then potentially from those to even more... this is how it ended up in your hive.
extremely virulent strains of efb are evolving that are proving resistant to all interventions. one such strain has claimed 20 out of 28 my colonies this year there may be more losses to come.
as frank has pointed out the bacteria is persisting in the beebread and the in honey. short of irradiation there is no way to remove it.
the responsible approach would be to euthanize the colony, burn the frames and bury the ashes, and scorch the inside of the boxes.
journaling the growth of a (mite) treatment free apiary started in 2010. 20+/- hives