SOĞUKTA DEPOLAMANIN FARKLI KONUKÇULARDA YETİŞEN Trichogramma evanescens Westwood (HYM: TRICHOGRAMMATIDAE)’in FARKLI EVRELERİ ÜZERİNE ETKİLERİ

Bu çalışmada yumurta parazitoidi Trichogramma evanescens’in yumurta, larva ve pupa evreleri çeşitli konukçu [Ephestia kuehniella Zeller ve Sitotroga cerealella (Olivier)] yumurtalarında 4°C de 10, 20, 30 ve 40 gün süreyle depolanmıştır. Her bir konukçu içerisinde depolanan parazitoidlerin ergin çıkışı, parazitleme performansları ve ömür uzunluklarında depolama süresine bağlı olarak önemli oranda azalma gözlenmiştir. Depolama süresi çıkan erginlerin cinsiyet oranlarında önemli bir değişime neden olmamıştır. Depolama süresi arttıkça Sitotroga cerealella (Olivier) yumurtasında gelişen parazitoidlerin ömür uzunluğundaki azalma E. kuehniella yumurtasında gelişenlerden çok daha fazla olmuştur.

Anahtar Kelimeler:

Trichogramma evanescens, Ephestia kuehniella, Sitotroga cerealella, Soğukta depolama, Depolama süresi, Biyolojik mücadele

EFFECTS OF COLD STORAGE ON THE LIFE STAGES OF Trichogramma evanescens Westwood (HYM: TRICHOGRAMMATIDAE) RARED ON DIFFERENT HOST EGGS

In this study the eggs, larvae and pupae of the egg parasitoid Trichogramma evanescens in different host eggs [Ephestia kuehniella Zeller and Sitotroga cerealella (Olivier)] were stored as parasitized host eggs at 4°C for 10, 20, 30 and 40 days. Emergence, parasitization and longevity of the adults emerged from stored host eggs decreased depending on the storage periods. Sex rations of the adults were not effected by storage temperature and periods. The decrease of the adult parasitoid longevity emerged from S. cerealella eggs was more evident than that of E. kuehniella eggs.

Keywords:

Trichogramma evanescens, Ephestia kuehniella, Sitotroga cerealella, Cold storage, Storage period, Biological control,

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