2010-05-032010-05-031986https://hdl.handle.net/10365/8807This paper is a discussion of the perennial weed, Canada thistle, which spreads vegetatively by an extensive root system and forms secondary shoots from root buds. A herbicide, chlorsulfuron, is discussed in relation with this weed for a possible means of controlling itNorth Dakota State UniversityHerbicidesWeedsArticle