Trichogramma pintoi Voegele (Hymenoptera: Trichogrammatidae) yaşının parazitoid performansı üzerine etkisi

Çalışmada T. pintoi Voegele (Hymenoptera: Trichogrammatidae) erginlerinin farklı yaşlarda Ephestia kühniella Zeller (Lepidoptera: Pyralidae) yumurtaları ile karşılaşmasının parazitoit performansı üzerine etkisi araştırılmıştır. Çalışmalar 25°C±1°C’de % 65-70 nem ve 16/8 saat aydınlık/ karanlık koşullarında yürütülmüştür. Çalışma sonucunda parazitlediği yumurta sayısına ergin yaşının etkili olduğu, yaşlı bireylerin parazitledikleri yumurta sayılarında düşmelerin olduğu belirlenmiştir. Ergin ömrünün birinci gününde yumurta ile karşılaşan parazitoitlerin ortalama 159.80 adet yumurta bıraktıkları, ergin olduktan 7 gün sonra yumurta ile karşılaşan parazitoitlerin ise ortalama 27.30adet yumurta parazitleyebildikleri belirlenmiştir. Parazitoitlerin canlı kalma oranları ise %46.70 oranına düşmüştür.

Anahtar Kelimeler:

Trichogramma pintoi, dişi yaşı, ömür, doğurganlık

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