%0 Journal Article %T Light and Low Temperature Effects on the Shelf Life of Different Development Stages of Trichogrammatoidea bactrae, Hymenoptera: Trichogrammatidae %A Muhammad Faheem Malik %J Journal of Biological Sciences %D 2001 %I Asian Network for Scientific Information %X The experiment was conducted to determine the shelf life for 20, 40 & 60 days of different development stages of Trichogrammatoidea bactrae at three different temperatures (0,4,& 8 C) with two light/dark regimes (9/15 light/dark hours & complete darkness). It was observed that under the conditions of this test, the best shelf life (>57% adult emergence) was obtained when pupae were held at 8 C for any holding time tested. Among the environmental factors tested (temperature, holding time and photoperiod) temperature was the most important. T. bactrae might overwinter either in egg or pupal stage. %U http://docsdrive.com/pdfs/ansinet/jbs/2001/58-59.pdf