> An unresolved question: does reappearance of EFB in a colony in the
spring ... The end result is the same, but the causes may suggest different approaches
This is also an issue with chalkbrood, which we battled at the Dyce Lab while I was there. We found that even irradiation of the equipment would not prevent chalkbrood in the damp spring -- leading me to believe that the source was the environment, not the combs
PLB
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