2 daughter colonies of the 4a were tested:
DE-16-5-1630-1966 DE-16-5-1646-1966
1 tested queens were mated at the mating station:
DE-16-5-1630-1966
11 daughter colonies of queens mated at the mating station were tested:
DE-16-5-1815-1967 DE-16-5-1820-1967 DE-16-5-1821-1967 DE-16-5-1822-1967 DE-16-5-1823-1967 DE-16-5-1825-1967 DE-16-5-1826-1967 DE-16-5-1828-1967 DE-16-5-1829-1967 DE-16-5-1830-1967 DE-16-5-1831-1967