No daughter colonies of the 4a were tested yet.
6 tested queens were mated at the mating station:
DE-8-4-31-1984 DE-8-4-33-1984 DE-8-4-34-1984 DE-8-4-36-1984 DE-8-4-39-1984 DE-8-4-40-1984
15 daughter colonies of queens mated at the mating station were tested:
DE-8-4-5-1986 DE-8-4-8-1986 DE-8-4-9-1986 DE-8-4-11-1986 DE-8-4-23-1985 DE-8-4-25-1985 DE-8-4-26-1985 DE-8-4-27-1985 DE-8-4-27-1986 DE-8-4-28-1986 DE-8-4-30-1985 DE-8-4-31-1986 DE-8-4-34-1985 DE-8-4-35-1985 DE-8-4-47-1986