Abstract
In this study, the fecundity, development period, emergency percent, longevity, sex ratio, hind tibia length and brachypterous or apterous adults wasps of Trichogramma brassicae Bezd. In it's rearing on eggs of Sitotroga cerealella Oliv. Were evaluated in 24±1oC, 65±5% RH and 14:10 (L: D) for five generations. The mean amount of investigated characteristics for adult wasps was obtained: fecundity: 34.55 eggs per female, development period: 11.61 days, emergency: 93.52%, longevity: 3.04 days, female's ratio: 64.56%, hind tibia length: 160.48 microns and brachypterouses or apterous: 6.02%.The efficacy of T. brassicae increase until 3th generation and then decrease in following genereation. The results indicated the suitability of S. cerealella as a host for rearing of T. brassicae.