Remarks Although PNW data are lacking, isoxaben, metsulfuron, and 2,4-D + MCPP + dicamba are used for control in the Southeastern US.
Site of action (metsulfuron) Group 2: acetolactate synthase (ALS) inhibitor; (glyphosate) Group 9: inhibits EPSP synthase; (picloram) Group 4: synthetic auxin
Chemical family (metsulfuron) sulfonylurea; (glyphosate) none generally accepted; (picloram) phenoxy acetic acid