13 daughter colonies of the 4a were tested:
IT-20-70-1-2019 IT-20-70-2-2019 IT-20-70-3-2019 IT-20-70-4-2019 IT-20-70-141-2019 IT-20-70-142-2019 IT-20-70-143-2019 IT-20-70-145-2019 IT-20-70-146-2019 IT-20-70-147-2019 IT-20-70-148-2019 IT-20-70-149-2019 IT-20-70-150-2019
4 tested queens were mated at the mating station:
IT-20-163-1143-2021 IT-20-163-1145-2021 IT-20-236-61-2021 IT-20-236-63-2021
17 daughter colonies of queens mated at the mating station were tested:
IT-4-101-180-2024 IT-4-101-182-2024 IT-4-101-185-2024 IT-4-101-186-2024 IT-4-101-187-2024 IT-4-104-127-2024 IT-4-104-132-2024 IT-4-104-134-2024 IT-4-104-136-2024 IT-4-104-138-2024 IT-4-104-143-2024 IT-4-109-21-2024 IT-4-109-161-2024 IT-4-109-179-2024 IT-4-109-190-2024 IT-4-111-128-2024 IT-4-111-145-2024