No daughter colonies of the 4a were tested yet.
2 tested queens were mated at the mating station:
NO-1-55-1-2017 NO-1-55-814-2017
7 daughter colonies of queens mated at the mating station were tested:
NO-1-55-2-2020 NO-1-55-3-2020 NO-1-55-6-2020 NO-1-55-11-2020 NO-1-55-13-2020 NO-1-55-22-2020 NO-1-55-24-2020