Blar i Skogforsk, Aktuelt på forfatter "Fossdal, Carl Gunnar"
-
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 ... -
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 ...