Muhammad Faheem Malik
Agriculture Training Institute, Sariab, Ouetta, Balochistan, Pakistan
ABSTRACT
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 °C 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 °C respectively. Immature mortality was highest (32.01%) at 28 °C and lowest (16.79%) 18 °C. More female than males were found at all temperatures. Female fecundity related directly to temperatures. There were 24 eggs per female at 28 °C and 12 eggs per female at 13 °C. Females lived longer than males at all temperatures. Net productive rate was maximum at 23 °C (10.629) and minimum at 13 °C (4.751). In trinsic rate of increase and finite rate were maximum at 28 °C (0.231 and 1.261 respectively) and minimum at 13 °C (0.029 and 1.030 respectively).
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How to cite this article
Muhammad Faheem Malik, 2000. Life Table Studies of Trichogrammatoidea bactrae, Hymenoptera: Trichogrammatidae, an Effective Biological Agent of Pink Bollworm (Pectinophora Gossypiella Lepidoptera: Gelechidae) of Cotton
(Gossypium spp.). Pakistan Journal of Biological Sciences, 3: 2106-2108.
DOI: 10.3923/pjbs.2000.2106.2108
URL: https://scialert.net/abstract/?doi=pjbs.2000.2106.2108
DOI: 10.3923/pjbs.2000.2106.2108
URL: https://scialert.net/abstract/?doi=pjbs.2000.2106.2108
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