41 daughter colonies of the 4a were tested:
DE-8-217-1-2020 DE-8-217-2-2020 DE-8-217-4-2020 DE-8-217-5-2020 DE-8-217-6-2020 DE-8-217-7-2020 DE-8-217-10-2020 DE-8-217-11-2020 DE-8-217-13-2020 DE-15-69-1-2020 DE-15-69-12-2020 DE-15-69-15-2020 DE-15-69-18-2020 DE-15-69-19-2020 DE-15-69-21-2020 DE-15-69-25-2020 DE-15-69-26-2020 DE-15-69-27-2020 DE-15-69-29-2020 DE-15-69-32-2020 DE-15-69-36-2020 DE-15-69-38-2020 DE-15-69-43-2020 DE-15-69-44-2020 DE-15-69-47-2020 DE-15-69-50-2020 DE-15-69-51-2020 DE-15-69-52-2020 DE-15-69-62-2020 DE-15-69-71-2020 DE-15-69-77-2020 DE-15-69-80-2020 DE-15-69-82-2020 DE-15-69-84-2020 DE-15-69-89-2020 DE-15-69-93-2020 DE-15-69-95-2020 DE-15-69-97-2020 DE-15-69-115-2020 DE-15-69-147-2020 DE-15-69-151-2020
7 tested queens were mated at the mating station:
DE-8-209-91-2021 DE-8-209-92-2021 DE-8-209-94-2021 DE-8-209-95-2021 DE-15-164-55-2021 DE-15-164-98-2021 UA-2-5-91-2021
1 daughter colonies of queens mated at the mating station were tested:
UA-2-5-494-2022