No daughter colonies of the 4a were tested yet.
5 tested queens were mated at the mating station:
CH-51-11-1273-1981 CH-51-13-1287-1981 CH-51-13-1289-1981 CH-51-13-1290-1981 CH-51-13-1646-1981
6 daughter colonies of queens mated at the mating station were tested:
CH-51-6-1424-1983 CH-51-6-1681-1983 CH-51-13-1647-1984 CH-51-104-1709-1984 CH-51-104-1710-1984 CH-51-104-2038-1984