9 daughter colonies of the 4a were tested:
DE-18-26-5976-2012 DE-18-26-5978-2012 DE-18-26-5988-2012 DE-18-26-5992-2012 DE-18-26-5994-2012 DE-18-26-5997-2012 DE-18-26-5999-2012 BE-1-401-1-2012 BE-1-401-77-2013
2 tested queens were mated at the mating station:
DE-18-26-108-2013 DE-18-26-174-2013
2 daughter colonies of queens mated at the mating station were tested:
FR-53-91-4-2014 FR-53-91-21-2014