12 daughter colonies of the 4a were tested:
DE-6-1-1214-2005 DE-6-1-1219-2005 DE-6-1-1231-2005 DE-6-1-1239-2005 DE-6-1-1331-2004 DE-6-1-1365-2004 DE-6-1-1381-2004 DE-6-1-1383-2004 DE-6-1-1391-2004 DE-6-1-1394-2004 DE-6-1-1396-2004 DE-6-1-1402-2004
4 tested queens were mated at the mating station:
DE-6-96-1-2005 DE-6-96-2-2005 DE-6-96-5-2005 DE-6-96-6-2005
3 daughter colonies of queens mated at the mating station were tested:
DE-6-96-27-2006 DE-6-96-28-2006 DE-6-96-29-2006