No daughter colonies of the 4a were tested yet.
4 tested queens were mated at the mating station:
DE-19-9-4607-2007 DE-19-9-5007-2007 DE-19-9-5107-2007 DE-19-9-5607-2007
1 daughter colonies of queens mated at the mating station were tested:
DE-19-104-7812-2012