No daughter colonies of the 4a were tested yet.
4 tested queens were mated at the mating station:
CH-50-3-262-2002 CH-50-3-372-2002 CH-50-3-455-2002 CH-50-3-458-2002
2 daughter colonies of queens mated at the mating station were tested:
CH-50-3-70-2003 CH-50-3-478-2004