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Journals / Anadolu Orman Araştırmaları Dergisi / 2026 / Cilt: 9 Sayı: 1

Effect of parasitization duration and efficiency of Ooencyrtus pityocampae (Mercet) (Hymenoptera: Encyrtidae) on Graphosoma lineatum (L.) (Heteroptera: Pentatomidae) eggs

Ooencyrtus pityocampae (Mercet) (Hymenoptera: Encyrtidae)’nın Graphosoma lineatum (L.) (Heteroptera: Pentatomidae) yumurtalarındaki etkinliği ve parazitlenme süresinin etkisi

Naghan Nooruldeen Saab0000-0002-6734-4890
Ziya Şimşek(ÇANKIRI KARATEKİN ÜNİVERSİTESİ)0000-0002-4401-491X
Yalçın Kondur(ÇANKIRI KARATEKİN ÜNİVERSİTESİ, ORMAN FAKÜLTESİ)0000-0002-6923-7060
Pages
70–80
Publication Date
2023-06-15
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In case of mass rearing of O.pityocampae on G.lineatum eggs, 48-hour parasitization duration may be much efficient owing to both high parasitization ratio and shorter development duration.

📌 3 Key Takeaways

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Objective & Hypothesis:The parasitization efficiency and the effect of parasitisation duration on Ooencyrtus pityocampae (Mercet) (Hym.: Encyrtidae), an important egg parasitoid of the Pine Processionary Moth [Thaumetopoea pityocampa (Den.&Schiff.) (Lep.: Notodontidae)], on Graphosoma lineatum (L.) (Het.: Pentatomidae) eggs were evaluated in this study.
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Key Findings & Data:Studies were carried out in climate chamber that set to 25±1°C temperature, 65±5% humidity conditions One generation completion duration (days) and parasitization ratios (%) were determined at 24, 48 and 72 hour-periods.
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Conclusion & Impact:In case of mass rearing of O.pityocampae on G.lineatum eggs, 48-hour parasitization duration may be much efficient owing to both high parasitization ratio and shorter development duration.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Ooencyrtus pityocampae · Graphosoma lineatum · Thaumetopoea wilkinsoni

Abstract

The parasitization efficiency and the effect of parasitisation duration on Ooencyrtus pityocampae (Mercet) (Hym.: Encyrtidae), an important egg parasitoid of the Pine Processionary Moth [Thaumetopoea pityocampa (Den.&Schiff.) (Lep.: Notodontidae)], on Graphosoma lineatum (L.) (Het.: Pentatomidae) eggs were evaluated in this study. Studies were carried out in climate chamber that set to 25±1°C temperature, 65±5% humidity conditions One generation completion duration (days) and parasitization ratios (%) were determined at 24, 48 and 72 hour-periods. O.pityocampae and G.lineatum completed their developments between 15-19 days and 7-8 days respectively. There was not significant difference among parasitization ratios within 24, 48 and 72-hour periods. The shortest parasitoid emergence duration was 14.97±0.45 days when the host eggs were exposed to the parasitoid within 48 hours. In case of mass rearing of O.pityocampae on G.lineatum eggs, 48-hour parasitization duration may be much efficient owing to both high parasitization ratio and shorter development duration.

Özet

Bu çalışmada Çam Keseböceği [Thaumetopoea pityocampa (Den.&Schiff.)’nin (Lep.: Notodontidae)]’nin önemli yumurta parazitoiti olan Ooencyrtus pityocampae (Mercet) (Hym.: Encyrtidae)’nın Graphosoma lineatum (L.) (Het.: Pentatomidae) yumurtalarındaki etkinliği ve parazitlenme süresinin etkisi ele alınmış olup çalışmalar 25±1°C sıcaklık ve %65±5 neme ayarlı iklim odasında yürütülmüştür. Değişik sürelerde (24, 48 ve 72 saat) parazitlenmeye bırakılan yumurtalarda parazitoitin bir dölünü tamamladığı süre (gün) ve parazitlenme oranları (%) belirlenmiştir. O.pityocampae ve G.lineatum’un gelişimlerini sırasıyla 15-19 ve 7-8 günde tamamladıkları saptanmıştır. Değişik sürelerde gerçekleşen parazitlenme oranları arasında önemli bir fark bulunmamıştır. Parazitoit gelişme süreleri bakımından en erken parazitoit çıkışlarının (14,97±0,45 gün) 48 saat süreyle parazitlenmeye bırakılanlarda gerçekleştiği tespit edilmiştir. O.pityocampae’nın G.lineatum yumurtaları üzerinde yetiştirilmesi düşünüldüğünde; parazitlenme oranının yüksek olması ve nispeten kısa sürede gelişmesi bakımından 48 saatlik sürenin uygun olabileceği kanısına varılmıştır.

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Cite This Article

Saab, N. N., Şimşek, Z., Kondur, Y. (2023). Effect of parasitization duration and efficiency of Ooencyrtus pityocampae (Mercet) (Hymenoptera: Encyrtidae) on Graphosoma lineatum (L.) (Heteroptera: Pentatomidae) eggs. Anadolu Orman Araştırmaları Dergisi, Cilt: 9 Sayı: 1, 70–80. https://doi.org/10.53516/ajfr.1255534

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