21 daughter colonies of the 4a were tested:
IT-20-108-131-2019 IT-20-108-133-2019 IT-20-108-134-2019 IT-20-108-135-2019 IT-20-108-136-2019 IT-20-108-139-2019 IT-20-108-1016-2020 IT-20-108-3011-2018 IT-20-108-3028-2018 IT-20-108-4017-2019 IT-20-108-4032-2019 IT-20-108-4040-2019 IT-20-108-4050-2019 IT-20-108-6009-2020 IT-20-108-6012-2020 IT-20-108-6014-2020 IT-20-108-6025-2020 IT-20-108-6028-2020 IT-20-108-6042-2020 IT-20-108-6049-2020 IT-20-108-6050-2020
1 tested queens were mated at the mating station:
IT-20-108-1026-2021
6 daughter colonies of queens mated at the mating station were tested:
IT-20-158-94-2023 IT-20-158-95-2023 IT-20-158-97-2023 IT-20-158-98-2023 IT-20-158-100-2023 IT-20-158-103-2023