No daughter colonies of the 4a were tested yet.
9 tested queens were mated at the mating station:
DE-6-6-4-1992 DE-6-6-7-1992 DE-6-6-9-1992 DE-6-6-10-1992 DE-6-6-11-1992 DE-6-6-12-1992 DE-6-6-15-1992 DE-6-6-16-1992 DE-6-6-18-1992
8 daughter colonies of queens mated at the mating station were tested:
DE-6-6-5-1994 DE-6-6-10-1994 DE-6-6-14-1994 DE-6-6-16-1994 DE-6-6-17-1994 DE-6-6-18-1994 DE-6-6-19-1994 DE-6-6-22-1994