Abstract

In this study, effect of gradually decreased temperature on larval stage of endoparasitoid Pimpla turionellae L. (Hymenoptera: Ichneumonidae) reared on pupae of Galleria mellonella L. (Lepidoptera: Pyralidae) in laboratory conditions were investigated. Parasitized host pupae were acclimated gradually decreasing temperature; for 3 days at 25, 20, 15 and 10°C, then 2, 3, 4 and 5 days at 4°C, respectively. Duration of adult emergence after parasitization, adult longevity and fecundity were determined after each acclimation. With the increasing of duration time at 4°C, we found these results; adult longevity and fecundity decreased.

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