No daughter colonies of the 4a were tested yet.
2 tested queens were mated at the mating station:
DE-15-88-1-1998 DE-15-88-5-1998
8 daughter colonies of queens mated at the mating station were tested:
DE-15-80-1-2000 DE-15-80-2-2000 DE-15-80-3-2000 DE-15-80-4-2000 DE-15-88-1-2000 DE-15-88-2-2000 DE-15-88-3-2000 DE-15-88-4-2000