I was reading this last night and thought that some of the preservationists
on the list (and others) might find it interesting. It seems the source is
also the site of the cure, having come in the 16th century in lumber to
Great Britain on ships.
http://www.fmb.org.uk/publications/masterbuilder/july98/dryrot.asp
Norwegian wood structures are some of the oldest in Europe.
George Myers