No daughter colonies of the 4a were tested yet.
2 tested queens were mated at the mating station:
BE-2-999-10-2016 BE-2-999-13-2016
4 daughter colonies of queens mated at the mating station were tested:
BE-2-999-2-2018 BE-2-999-21-2017 BE-2-999-21-2018 BE-2-999-22-2017