14 daughter colonies of the 4a were tested:
DE-2-293-3-2018 DE-2-293-4-2018 DE-2-293-5-2018 DE-2-293-7-2018 DE-2-293-8-2018 DE-2-293-28-2018 DE-2-293-46-2018 DE-2-293-47-2018 DE-2-293-48-2018 DE-2-293-71-2019 DE-2-293-101-2018 DE-2-293-102-2018 DE-2-293-812-2018 DE-2-293-870-2018
7 tested queens were mated at the mating station:
DE-2-293-71-2019 DE-2-293-301-2019 DE-2-293-309-2019 DE-2-347-54-2019 DE-2-347-55-2019 DE-2-347-56-2019 DE-2-347-58-2019
No daughter colonies from colonies mated at the station were tested yet.