Abstract
The fecundity, oviposition period and longevity of Diaeretiella rapae (=Dr) and Aphidius gifuensis (=Ag) were examined under a 20±1°C, 15L-9D regime. Single newly emerged and female adults that had already mated were provided with 20 second or third instar larvae of Myzus persicae and honey droplets daily throughout their life. The aphids were then dissected to count the number of eggs deposited. The mean total number of eggs deposited per female was 238.7 (range 152-322) in Dr and 531.5 (290-865) in Ag. The mean oviposition period and the mean longevity of the female adults were respectively 11.1 and 14.7 days in Dr. The corresponding figures were respectively 14.9 and 17.6 days in Ag.
