23 daughter colonies of the 4a were tested:
CH-52-32-52-2021 CH-52-32-307-2022 CH-52-32-315-2022 CH-52-32-320-2022 CH-52-32-325-2022 CH-52-32-327-2022 CH-52-32-330-2022 CH-52-32-362-2022 CH-52-32-369-2022 CH-52-32-385-2022 CH-52-32-386-2022 CH-52-32-390-2022 CH-52-323-12-2022 CH-52-323-13-2022 CH-52-323-14-2022 CH-52-323-15-2022 CH-52-323-40-2022 CH-52-323-50-2022 CH-52-323-58-2022 CH-52-323-72-2022 CH-52-323-73-2022 CH-52-323-85-2022 CH-52-323-99-2022
8 tested queens were mated at the mating station:
CH-51-206-907-2023 CH-51-206-908-2023 CH-51-206-917-2023 CH-52-92-31-2023 CH-52-92-35-2023 CH-52-92-44-2023 CH-52-399-28-2023 CH-52-886-33-2023
11 daughter colonies of queens mated at the mating station were tested:
CH-51-206-903-2024 CH-51-206-915-2024 CH-51-206-920-2024 CH-51-206-953-2024 CH-51-212-7-2024 CH-51-214-1-2024 CH-51-214-18-2024 CH-51-214-23-2024 CH-51-214-25-2024 CH-51-214-103-2024 CH-51-214-104-2024