80 daughter colonies of the 4a were tested:
DE-6-90-1-2017 DE-6-90-2-2017 DE-6-90-3-2017 DE-6-90-3-2018 DE-6-90-5-2017 DE-6-90-5-2018 DE-6-90-7-2017 DE-6-90-7-2018 DE-6-90-8-2017 DE-6-90-8-2018 DE-6-90-9-2018 DE-6-90-10-2017 DE-6-90-10-2018 DE-6-90-11-2017 DE-6-90-11-2018 DE-6-90-14-2017 DE-6-90-15-2017 DE-6-90-16-2017 DE-6-90-18-2017 DE-6-90-23-2017 DE-6-90-23-2018 DE-6-90-24-2018 DE-6-90-25-2017 DE-6-90-25-2018 DE-6-90-27-2017 DE-6-90-28-2017 DE-6-90-30-2017 DE-6-90-31-2017 DE-6-90-31-2018 DE-6-90-32-2017 DE-6-90-32-2018 DE-6-90-33-2018 DE-6-90-34-2017 DE-6-90-38-2017 DE-6-90-38-2018 DE-6-90-39-2017 DE-6-90-39-2018 DE-6-90-40-2018 DE-6-90-42-2017 DE-6-90-43-2018 DE-6-90-45-2017 DE-6-90-46-2017 DE-6-90-48-2017 DE-6-90-48-2018 DE-6-90-50-2017 DE-6-90-50-2018 DE-6-90-51-2017 DE-6-90-52-2018 DE-6-90-53-2017 DE-6-90-53-2018 DE-6-90-54-2017 DE-6-90-54-2018 DE-6-90-55-2018 DE-6-90-56-2018 DE-6-90-57-2018 DE-6-90-59-2018 DE-6-90-66-2018 DE-6-90-68-2018 DE-6-90-74-2018 DE-6-90-81-2018 DE-6-90-82-2018 DE-6-90-83-2018 DE-6-90-84-2018 DE-6-90-85-2018 DE-6-90-87-2018 DE-6-90-88-2018 DE-6-90-93-2018 DE-6-90-94-2018 DE-6-229-1-2017 DE-6-229-3-2017 DE-6-229-4-2017 DE-6-229-5-2017 DE-6-229-9-2017 DE-6-229-11-2017 DE-6-229-14-2017 DE-6-229-15-2017 DE-6-229-16-2017 DE-6-229-21-2017 DE-6-229-22-2017 DE-6-229-23-2017
18 tested queens were mated at the mating station:
DE-15-22-36-2019 DE-15-97-1-2019 DE-15-97-3-2019 DE-15-97-5-2019 DE-15-97-7-2019 DE-15-97-9-2019 DE-15-97-11-2019 DE-15-97-13-2019 DE-15-97-14-2019 DE-15-97-17-2019 DE-15-97-18-2019 DE-15-97-19-2019 DE-15-97-20-2019 DE-15-97-21-2019 DE-15-97-24-2019 DE-15-97-25-2019 DE-15-97-30-2019 DE-15-97-31-2019
1 daughter colonies of queens mated at the mating station were tested:
DE-15-198-1-2021