No daughter colonies of the 4a were tested yet.
2 tested queens were mated at the mating station:
CH-50-6-129-2007 CH-50-6-262-2007
5 daughter colonies of queens mated at the mating station were tested:
CH-50-6-126-2009 CH-50-6-164-2009 CH-50-6-454-2010 CH-50-60-60235-2011 CH-50-60-60240-2011