8 daughter colonies of the 4a were tested:
DE-16-303-6-1995 DE-16-303-8-1995 DE-16-303-10-1995 DE-16-303-11-1995 DE-16-303-12-1995 DE-16-303-13-1995 DE-16-303-15-1995 DE-16-303-16-1995
8 tested queens were mated at the mating station:
DE-16-303-6-1995 DE-16-303-8-1995 DE-16-303-10-1995 DE-16-303-11-1995 DE-16-303-12-1995 DE-16-303-13-1995 DE-16-303-15-1995 DE-16-303-16-1995
7 daughter colonies of queens mated at the mating station were tested:
DE-16-303-1-1998 DE-16-303-2-1998 DE-16-303-3-1998 DE-16-303-4-1998 DE-16-303-5-1998 DE-16-303-8-1998 DE-16-303-11-1998