Maybe someone can shed some light on this.
I made some splits a couple of weeks ago. Introduced new queens and left alone for 1 week. Went back and they were dead. Split contained ten frames of bees. Boy was it full. 3 frames of brood and several of honey. There was a huge pile of bees outside and no it was animals feasting. They had not been chewed. I have had a skunk problem before at another yard and I know the difference. They had been carried out of the hive by the others before they had died leaving another big pile inside. It looks to have happened all within 3-4 days. The queen had laid 2 combs full of eggs, but she too was dead. The brood had died before hatching But I feel that was because they had not been kept warm. They are not stringy or rotten like foulbrood, They look perfectly healthy with no mites in the cells. It may be poison but there is no spraying going on at this time of year here and the other 4 hives are fine, just this one that was in the middle. Any Ideas?