I have had a call from a fellow who has bees living in his brick building. They are definitely living inside the wall, leaving me to conclude that a trap-out is the only reasonable solution. It is however fairly late in the season, and I'm curious about how likely it is that the colony would survive. The bees have been living there for a few years, so the guy might not have a problem waiting till the Spring, and it seems a shame to rush things and kill all the bees, but on the other hand the guy's neighbors might get impatient, and I don't want to lose the job!
Would it be ok to do the removal now, or is it better to wait for Spring so the colony has a better chance of survival?