Turkish Journal of Entomology (2007) 31, 268-278

Semih Yilmaz, Salih Karabörklü and Abdurrahman Ayvaz (2007)
Effect of cold temperature durations on the performance of the adult Trichogramma evanescens (Westwood, 1833) (Hymenoptera: Trichogrammatidae)
Turkish Journal of Entomology 31 (4), 268-278
Abstract: In this study, the effects of cold storage on the parasitization rate, longevity, emergence rate and sex ratio of cold stored adults of Trichogramma evanescens (Westwood, 1833) (Hymenoptera: Trichogrammatidae) and their F1 progeny were investigated. The parasitoid adults were stored for 1, 2, 3 and 4 weeks at 10°C. Although parasitism rate of the cold stored adults declined depending on the increasing storage periods, parasitization per F1 female did not change. The longevity of parental adults and of its F1 progeny decreased depending on the length of the storage period, but the decrease in the parental generation was more prominent than that of the F1 progeny. The percent parasitoid emergence from the host eggs parasitized by cold stored adults was 96.55 % at the control but decreased to 85.09 % after 4 weeks storage. Female biased sex ratios were observed for all storage periods in the parental and F1 generation.
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Database assignments for author(s): Abdurrahman Ayvaz

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
formulation/storage of bioagents
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Trichogramma evanescens (parasitoid)