2 daughter colonies of the 4a were tested:
DE-15-88-1-1999 DE-15-88-4-1999
12 tested queens were mated at the mating station:
DE-15-80-1-2001 DE-15-80-2-2001 DE-15-80-3-2001 DE-15-80-4-2001 DE-15-88-1-2001 DE-15-88-2-2001 DE-15-88-3-2001 DE-15-88-4-2001 DE-15-88-5-2001 DE-15-88-6-2001 DE-15-88-7-2001 DE-15-88-8-2001
6 daughter colonies of queens mated at the mating station were tested:
DE-15-80-1-2003 DE-15-80-2-2003 DE-15-80-3-2003 DE-15-81-1-2003 DE-15-81-1-2004 DE-15-81-2-2004