8 daughter colonies of the 4a were tested:
CH-51-119-9-2013 CH-51-119-100-2013 CH-51-121-2-2012 CH-51-121-10-2012 CH-51-121-12-2012 CH-51-121-13-2012 CH-51-121-14-2012 CH-51-121-15-2012
6 tested queens were mated at the mating station:
CH-51-122-1-2014 CH-51-122-2-2014 CH-51-122-24-2014 CH-51-122-36-2014 CH-51-122-75-2014 CH-51-122-90-2014
9 daughter colonies of queens mated at the mating station were tested:
CH-51-122-86-2016 CH-51-122-87-2016 CH-51-122-88-2016 CH-51-125-50-2016 CH-51-125-52-2016 CH-51-125-53-2016 CH-51-128-2-2016 CH-51-128-3-2016 CH-51-128-4-2016