%0 Journal Article %T Life Table Studies of Trichogrammatoidea bactrae, Hymenoptera: Trichogrammatidae, an Effective Biological Agent of Pink Bollworm (Pectinophora Gossypiella Lepidoptera: Gelechidae) of Cotton (Gossypium spp.) %A Muhammad Faheem Malik %J Pakistan Journal of Biological Sciences %D 2000 %I Asian Network for Scientific Information %X Selected laboratory life table studies of Trichgrammatoidea bactrea were made at New Maxico State University USA. Life history studies were run at 13, 18, 23 and 28 ˇăC at a constant 55% relative humidity (RH) and a 11/13 (light/dark) photoperiod. Speed of development from egg to adult stage ranged from 50.31 to 8.72 days at temperature from 13 to 28 ˇăC respectively. Immature mortality was highest (32.01%) at 28 ˇăC and lowest (16.79%) 18 ˇăC. More female than males were found at all temperatures. Female fecundity related directly to temperatures. There were 24 eggs per female at 28 ˇăC and 12 eggs per female at 13 ˇăC. Females lived longer than males at all temperatures. Net productive rate was maximum at 23 ˇăC (10.629) and minimum at 13 ˇăC (4.751). In trinsic rate of increase and finite rate were maximum at 28 ˇăC (0.231 and 1.261 respectively) and minimum at 13 ˇăC (0.029 and 1.030 respectively). %K Trchogrammatoidea bactrae parasitoid life table speed of development mortality %K fecundity net teporoductive rate %K intrinsic rate of increase %U http://docsdrive.com/pdfs/ansinet/pjbs/2000/2106-2108.pdf