12 daughter colonies of the 4a were tested:
DE-18-26-198-2017 DE-18-26-562-2017 DE-18-26-1640-2017 DE-18-26-1641-2017 DE-18-26-1642-2017 DE-18-26-1660-2017 DE-18-26-1661-2017 DE-18-26-1681-2017 DE-18-26-1682-2017 DE-18-26-1683-2017 DE-18-26-1685-2017 DE-18-26-1688-2017
19 tested queens were mated at the mating station:
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 DE-7-152-34-2019 DE-7-152-35-2019 DE-7-152-36-2019 DE-7-152-38-2019 DE-7-152-46-2019 DE-7-152-51-2019 DE-7-152-53-2019 DE-7-152-54-2019 DE-7-152-55-2019 DE-7-152-56-2019 DE-7-152-57-2019 DE-7-152-58-2019
7 daughter colonies of queens mated at the mating station were tested:
DE-7-152-1-2020 DE-7-152-2-2020 DE-7-152-3-2020 DE-7-152-5-2020 DE-7-152-6-2020 DE-7-152-39-2020 DE-7-152-41-2020