Park, Sang Ho2015-05-122015-05-121992https://scholarworks.montana.edu/handle/1/6883enPhytotoxinsSpotted knapweedMode of action of maculosin, a host-specific phytotoxin, produced by Alternaria alternata on spotted knapweed (Centaurea maculosa L.)DissertationCopyright 1992 by Sang Ho Park