Armillaria ostoyae associated with dying 60-year-old Scots pines in northern Turkey

Lehtijarvi A., Dogmus-Lehtijarvi H. T. , Aday A. G.

FOREST PATHOLOGY, vol.42, no.3, pp.267-269, 2012 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 3
  • Publication Date: 2012
  • Doi Number: 10.1111/j.1439-0329.2011.00756.x
  • Journal Name: FOREST PATHOLOGY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.267-269


We investigated an Armillaria root disease centre in a 60-year-old, naturally regenerated Pinus sylvestris stand located at 1250 m altitude in Sinop province in northern Turkey. Based on sequence analysis of the internal transcribed spacer region of the rDNA, the mycelial fans sampled from the infected trees were Armillaria ostoyae. Multilocus genotyping indicated that the fans belonged to a single genet, at least 0.2 ha in size. Drought as a predisposing factor is discussed. The study area received 5070 and 2550% of the normal precipitation in May, June and August in 2009 and in August and September in 2010, respectively. Moreover, earlier excavation work to prepare a forest road had probably disrupted the water table in the affected stand.