10 daughter colonies of the 4a were tested:
DE-2-152-3-2012 DE-2-152-5-2012 DE-2-152-7-2011 DE-2-152-8-2012 DE-2-152-14-2011 DE-2-152-14-2012 DE-2-152-17-2012 DE-2-152-22-2011 DE-2-152-23-2012 DE-2-152-41-2011
4 tested queens were mated at the mating station:
DE-2-152-8-2014 DE-2-152-11-2014 DE-2-152-15-2014 DE-2-152-27-2014
11 daughter colonies of queens mated at the mating station were tested:
DE-2-152-4-2017 DE-2-152-14-2017 DE-2-152-17-2015 DE-2-152-18-2015 DE-2-152-23-2016 DE-2-152-27-2016 DE-2-152-31-2016 DE-2-152-33-2015 DE-2-152-35-2017 DE-2-152-41-2015 DE-2-152-55-2015