No daughter colonies of the 4a were tested yet.
6 tested queens were mated at the mating station:
DE-4-23-15-2014 DE-4-23-18-2014 DE-4-23-24-2014 DE-4-291-24-2014 DE-4-291-26-2014 DE-4-291-37-2014
8 daughter colonies of queens mated at the mating station were tested:
DE-4-23-14-2016 DE-4-23-21-2016 DE-4-23-25-2016 DE-4-23-27-2015 DE-4-23-43-2015 DE-4-23-45-2015 DE-4-23-49-2015 DE-4-23-56-2016