2,4-DB (Butyrac) or
alachlor (Lasso) or
atrazine (AAtrex) or
bromoxynil (Buctril) or
clomazone (Command) or
clopyralid (Stinger or Transline) or
diuron (Karmex) or
glyphosate or
metolachlor (Dual) or
metribuzin (Sencor)
oxyfluorfen (Goal) or
paraquat (Gramoxone Max) or
picloram (Tordon) or
terbacil (Sinbar)
Remarks Reported to control this plant, although data are lacking in the Pacific Northwest. Follow label instructions.
Site of action (alachlor and metolachlor) Group 15: unknown; (atrazine, metribuzin, and terbacil) Group 5: photosystem II inhibitor; (bromoxynil) Group 6: photosystem II inhibitor; (clomazone) Group 13: inhibits DOXP synthase; (clopyralid, picloram, and 2,4-DB) Group 4: synthetic auxin; (diuron) Group 7: photosystem II inhibitor; (glyphosate) Group 9: inhibits EPSP synthase; (oxyfluorfen) Group 14: protoporphyrinogen oxidase inhibitor; (paraquat) Group 22: photosystem I electron diverter
Chemical family (alachlor and metolachlor) chloroacetamide; (atrazine) triazine; (bromoxynil) nitrile; (clomazone) isoxazolidone; (clopyralid and picloram) pyridine; (diuron) urea; (glyphosate) none generally accepted; (metribuzin) triazinone; (oxyfluorfen) diphenylether; (paraquat) bipyridilium; (terbacil) uracil; (2,4-DB) phenoxy acetic acid