Abstract:

There are many types of parasitide that are studied in Turkey for biological control purposes. The trichogrammatidae family is among them. Types of trichogramma are especially used against the eggs of the Lepidoptera group, which are harmful in plants. Without damaging the plants, it kills the harmful while it is still in egg form. Species belonging to the trichogramma species have a special importance in biological control due to the facility of mass production and release in insect cultivation rooms. The storage of the guest egg in liquid nitrogen in mass production of trichograms can be an alternative method. The aim of this study was to store frozen Ephestia kuehniella Zell eggs at different times and to investigate more abundant, easy and cheaper production by determining the parasitization potential of Trichogramma evanescens Westwood and Trichogramma brassicae Bezdenko species. In this study, Ephestia kuehniella Zell. The eggs are stored in a liquid nitrojende (-196°C) for different periods (1, 2, 3, 4, 5 and 6 weeks). After the Ephestia kuehniella Zell's eggs are stored, the parasitization performance of the Trichogramma evanescens Westwood and Trichogramma brassicae Bezdenko species, the sex ratio of the adults in these parasitized eggs and the life of the females obtained from the parasitized eggs are determined. Ephestia kuehniella Zell. The performance in mass production of female obtained from stored eggs after the study of the parasitization performance of the Westwood Trichogramma evanescens and Trichogramma brassicae Bezdenko species was studied. The studies were carried out at a temperature of 25±1°C at a moisture of 60-70% in 16 light 8 hours in dark conditions. The study found that E. kuehniella eggs stored in liquid nitrogen for 5 weeks were successfully parasitized by Trichogramma evanescens Westwood and Trichogramma brassicae Bezdenko, and that no parasitization occurred in stored eggs for 6 weeks. But both species are stored in both liquid nitrogen. The number of parasitization of the kuehniella eggs, the number of opening and the number of female as well as the performance of female parasitites obtained from the egg stored in liquid nitrogen, the 3 weeks of storage period was found to be the most suitable time.

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