16 daughter colonies of the 4a were tested:
DE-7-166-7-2017 DE-7-166-9-2017 DE-7-166-15-2016 DE-7-166-18-2016 DE-7-166-20-2016 DE-7-166-23-2016 DE-7-166-25-2016 DE-7-166-26-2016 DE-7-166-27-2016 DE-7-166-28-2016 DE-7-166-29-2016 DE-7-166-35-2016 DE-7-166-38-2016 DE-7-166-45-2016 DE-7-166-46-2016 DE-7-166-48-2016
4 tested queens were mated at the mating station:
DE-7-151-41-2017 DE-7-151-42-2017 DE-7-151-46-2017 DE-7-151-59-2017
7 daughter colonies of queens mated at the mating station were tested:
DE-7-151-27-2019 DE-7-151-29-2019 DE-7-151-31-2019 DE-7-151-33-2019 DE-7-151-34-2019 DE-7-151-35-2019 DE-7-151-46-2019