High insecticidal activity of Leclercia adecarboxylata isolated from Leptinotarsa decemlineata (Col.: Chrysomelidae)

MURATOĞLU H., KATI H., DEMİRBAĞ Z., SEZEN K.

AFRICAN JOURNAL OF BIOTECHNOLOGY, cilt.8, sa.24, ss.7111-7115, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 8 Sayı: 24
  • Basım Tarihi: 2009
  • Dergi Adı: AFRICAN JOURNAL OF BIOTECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.7111-7115
  • Anahtar Kelimeler: Insecticidal activity, Leclercia adecarboxylata, Leptinotarsa decemlineata, microbial control, BACILLUS-THURINGIENSIS, LEPIDOPTERA, ENTEROBACTERIACEAE, MANAGEMENT, POTATO
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Colorado potato beetle (CPB), Leptinotarsa decemlineata ( Say), is an important pest on solanaceous crops worldwide. CPB has developed resistance to insecticides used for its control. In this study, in order to find a more effective and safer biological control agent against L. decemlineata, we studied the bacterial flora of CPB, and tested them for insecticidal effects on it. The highest insecticidal effect determined on L. decemlineata within 5 days was 100% and this effect was exhibited by Ld1 isolate. According to the morphological, physiological and biochemical tests, and 16S rRNA sequence homologies, Ld1 was identified as Leclercia adecarboxylata. This is the first time that this bacterium has been isolated from any insect pests. Our results indicate that Lecl. adecarboxylata may be valuable as a biological control agent for L. decemlineata.