No daughter colonies of the 4a were tested yet.
3 tested queens were mated at the mating station:
BE-2-1-7-2019 BE-2-1-11-2019 BE-2-999-93-2019
10 daughter colonies of queens mated at the mating station were tested:
BE-2-1-50-2020 BE-2-1-51-2020 BE-2-1-52-2020 BE-2-1-53-2020 BE-2-999-10-2020 BE-2-999-30-2020 BE-2-999-31-2020 BE-2-999-32-2020 BE-2-999-33-2020 BE-2-999-133-2020