No daughter colonies of the 4a were tested yet.
7 tested queens were mated at the mating station:
DE-8-18-420-1970 DE-8-18-423-1970 DE-8-18-424-1970 DE-8-18-425-1970 DE-8-18-426-1970 DE-8-18-428-1970 DE-8-18-429-1970
6 daughter colonies of queens mated at the mating station were tested:
DE-8-18-599-1972 DE-8-18-604-1972 DE-8-18-605-1972 DE-8-18-607-1972 DE-8-18-609-1972 DE-8-18-610-1972