15 daughter colonies of the 4a were tested:
CH-52-21-2-2018 CH-52-21-8-2018 CH-52-21-83-2017 CH-52-21-96-2017 CH-52-21-103-2017 CH-52-21-104-2017 CH-52-21-105-2017 CH-52-21-106-2017 CH-52-21-107-2017 CH-52-21-110-2017 CH-52-21-111-2017 CH-52-21-114-2017 CH-52-21-120-2017 CH-52-21-121-2017 CH-52-21-440-2017
24 tested queens were mated at the mating station:
CH-52-22-117-2019 CH-52-22-118-2019 CH-52-22-120-2019 CH-52-22-121-2019 CH-52-22-127-2019 CH-52-22-129-2019 CH-52-22-134-2019 CH-52-22-136-2019 CH-52-22-160-2019 CH-52-22-164-2019 CH-52-22-178-2019 CH-52-22-183-2019 CH-52-22-184-2019 CH-52-467-2-2019 CH-52-467-4-2019 CH-52-467-5-2019 CH-52-467-6-2019 CH-52-467-7-2019 CH-52-467-8-2019 CH-52-467-10-2019 CH-52-467-11-2019 CH-52-467-14-2019 CH-52-467-19-2019 CH-52-467-22-2019
18 daughter colonies of queens mated at the mating station were tested:
CH-52-22-1-2021 CH-52-22-2-2021 CH-52-22-4-2021 CH-52-22-8-2021 CH-52-22-9-2021 CH-52-22-19-2021 CH-52-22-22-2021 CH-52-22-25-2021 CH-52-22-26-2021 CH-52-22-27-2021 CH-52-40-73-2020 CH-52-40-75-2020 CH-52-40-76-2020 CH-52-40-77-2020 CH-52-40-78-2020 CH-52-40-80-2020 CH-52-40-81-2020 CH-52-40-88-2020