help,plant pathology

[CHARLTONS at NCCCOT.AGR.CA]

I would like to get information on nectria cinnabarina infection of 
trees, specifically:
	-is there any treatment available to save infected trees?
	-does the fungus attack healthy trees or only trees which have
	been weakened by other factors?
	-what is the best method to prevent spread of the fungus to other
	trees
Thanks in advance, Stacy Charlton  charltons at ncccot2.agr.ca