Blar i Skogforsk, Aktuelt på forfatter "Hietala, Ari Mikko"
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Colonisation profiles of Thekopsora areolata and a co-existing Phomopsis species in Norway spruce shoots
Hietala, Ari Mikko; Solheim, Halvor; Fossdal, Carl Gunnar (Others, 2006)The difficulty in sub-culturing biotrophic fungi complicates etiological studies related to the associated plant diseases. By employing species-specific ITS sequence stretches, we used real-time PCR to investigate the ... -
Defence reactions in Norway spruce toward the pathogenic root-rot causing fungus Heterobasidion annosum
Fossdal, Carl Gunnar; Hietala, Ari Mikko; Kvaalen, Harald; Solheim, Halvor (Others, 2006)The root-rot causing fungus Heterobasidion annosum can attack both spruce and pine trees and is the economically most damaging pathogen in northern European forestry. We have monitored the H. annosum S-type (fairly recently ... -
Forest pathology research in the Nordic and Baltic countries 2005. Proceedings from the SNS meeting in Forest Pathology at Skogbrukets Kursinstitutt, Biri, Norway, 28-31 August 2005
Solheim, Halvor; Hietala, Ari Mikko (Aktuelt fra skogforskningen;1/06, Research report, 2006-04) -
Top shoot dieback on Norway spruce seedlings associated with Gremmeniella and Phomopsis
Børja, Isabella; Solheim, Halvor; Hietala, Ari Mikko; Fossdal, Carl Gunnar (Aktuelt fra Skogforskningen, Research report, 2006)In spring 2002, extensive damage was recorded in southeast Norway on nursery-grown Norway spruce seedlings that had either wintered in nursery cold storage or had been planted out in autumn 2001. The damage was characterised ...