I posted this in the general part of the forum, then thought it might be better here. Sorry for the repeat.
My friend has a top bar hive, made out of reclaimed barn wood. Unpainted, sprayed with lemongrass oil. She has twice put bees in, first a package and then a caught swarm and they have both left in a matter of less than two days. The only thing we can figure is she noticed yellow jackets/hornets harassing her in her garden and followed it back to her shed. Would a nest of these keep the bees from staying?
The first time she thought they were too hot because she forgot to open the bottom. With the second one, the bottom was opened (screened bottom), so I don't think that was it. She got the swarm on Thurs night and it did get real humid here over the weekend. If so, does a top bar need to be in the shade more so than a Langstroth hive?
She and another couple built several top bar hives (9 or 10) out of the same wood. The other family has started their packages and report no problems. I, too, wondered about the wood at first, but that doesn't seem to be causing any issues with the other family (different location).