No daughter colonies of the 4a were tested yet.
3 tested queens were mated at the mating station:
UA-3-17-3-2017 UA-3-17-4-2017 UA-3-17-5-2017
6 daughter colonies of queens mated at the mating station were tested:
UA-3-17-2-2019 UA-3-17-3-2019 UA-3-17-8-2019 UA-3-17-9-2019 UA-3-17-10-2019 UA-3-17-12-2019