Determination of the parasitoids of the European sunflower moth and effectiveness in Ankara province

Abstract

The European sunflower moth [Homoeosoma nebulellum (Denis&Schiffermüller)] (Lepidoptera: Pyralidae) is one of the most important sunflower pest in Turkey. Concerning the parasitoids of this pest, the only one study was conducted in Turkey. The aim of this study is the identification of the parasitoids of the European sunflower moth. Bracon hebetor (Say.), B. trucidator (Marshall), B. pectoralis (Wesmael) (Hymenoptera: Braconidae) and Exeristes roborator F. (Hymenoptera: Ichneumonidae) were found as natural enemies. Bracon pectoralis was determined for the first time on the European sunflower moth in the world. Moreover, it was found that B. hebetor was more common among the other parasites and the rate of parasitism was high. Parasitism rate was estimated 9-30% and 0-6.6% in 2013 and 2014, respectively.

Keywords

• Homoeosoma nebulellum,parasitoid,parasitism rate,Braconidae,Ichneumonidae

Ankara ilinde Avrupa ayçiçeği güvesinin parazitoitleri ve etkinliklerinin belirlenmesi

Öz

Avrupa ayçiçeği güvesi [Homoeosoma nebulellum (Denis&Schiffermüller)] (Lepidoptera: Pyralidae) ülkemizde önemli bir ayçiçeği zararlısıdır. Ülkemizde zararlının parazitoitleri ile ilgili az sayıda çalışma bulunmaktadır. Çalışmamız ile zararlının Ankara ilindeki ayçiçeği alanlarındaki parazitiotleri belirlenmiştir. Bracon hebetor (Say.), B. trucidator, (Marshall), B. pectoralis (Wesmael) (Hymenoptera: Braconidae) ve Exeristes roborator F. (Hymenoptera: Ichneumonidae)’un zararlının doğal düşmanı olduğu belirlenmiştir. Bracon pectoralis’in zararlıyı parazitlediği dünyada ilk kez tespit edilmiştir. Parazitleme oranını belirleme çalışmalarında B. hebetor’un diğer parazitler arasında daha yaygın ve parazitleme oranının yüksek olduğu tespit edilmiştir. Parazitoitlerin zararlı larvalarını 2013 yılında %9–30 ve 2014 yılında %0-6.6 oranında parazitlediği belirlenmiştir.

Anahtar Kelimeler

• Homoeosoma nebulellum,Parasitoid,Parasitism rate,Braconidae,Ichneumonidae

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