9 daughter colonies of the 4a were tested:
CH-51-52-2910-1989 CH-51-52-2911-1989 CH-51-52-2912-1989 CH-51-52-2913-1989 CH-51-57-2908-1989 CH-51-57-2909-1989 CH-51-241-2914-1989 CH-51-241-2915-1989 CH-51-241-2916-1989
9 tested queens were mated at the mating station:
CH-51-52-2910-1989 CH-51-52-2911-1989 CH-51-52-2912-1989 CH-51-52-2913-1989 CH-51-57-2908-1989 CH-51-57-2909-1989 CH-51-241-2914-1989 CH-51-241-2915-1989 CH-51-241-2916-1989
3 daughter colonies of queens mated at the mating station were tested:
CH-51-57-3210-1990 CH-51-57-3211-1990 CH-51-57-3212-1990