First Record of Steinernema kraussei (Rhabditida: Steinernematidae) from Turkey and Its Virulence against Agrotis segetum (Lepidoptera: Noctuidae)

GÖKÇE C., Yilmaz H., ERBAŞ Z., DEMİRBAĞ Z., DEMİR İ.

JOURNAL OF NEMATOLOGY, cilt.45, sa.4, ss.253-259, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 4
  • Basım Tarihi: 2013
  • Dergi Adı: JOURNAL OF NEMATOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.253-259
  • Anahtar Kelimeler: Entomopathogenic nematode, Steinernema kraussei, biological control, Agrotis segetum, Turkey, ENTOMOPATHOGENIC NEMATODES RHABDITIDA, WEEVIL OTIORHYNCHUS-SULCATUS, HETERORHABDITIS-MEGIDIS, NATURAL OCCURRENCE, IDENTIFICATION, COLEOPTERA, EFFICACY, LARVAE, RFLP
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

During a survey of entomopathogenic nematodes (EPNs) in the eastern Black Sea region of Turkey in 2009-2012, a steinernematid species was recorded and isolated using the Galleria-baiting method. The isolate was identified as Steinernema kraussei based on its morphological and molecular properties. The analysis of the ITS rDNA sequence placed the Turkish population of S. kraussei in the "feltiae-kraussei'' group in the clade that contains different isolates of the species. This is the first record of S. kraussei from Turkey. The efficacy of S. kraussei was tested on Agrotis segetum (Lepidoptera: Noctuidea) larvae at different densities (100, 300, and 500 infective juveniles (IJs) g(-1) dry sand) in laboratory conditions at 25 degrees C. The highest mortality (98%) was obtained with 500 IJs g 21 dry sand within 7 d after inoculation. Our results indicate that the new isolate is a highly promising biological control agent against A. segetum, one of the most serious soil pests of agricultural area and fruits worldwide.