Remarks Although PNW data are preliminary, aminopyralid, glyphosate, imazamox, imazapyr, and triclopyr gave promising results in initial trials.
Site of action (imazamox, imazapyr) Group 2: acetolactate synthase (ALS) inhibitor; (glyphosate) Group 9: inhibits EPSP synthase; (aminopyralid, triclopyr) Group 4: synthetic auxin
Chemical family (imazamox, imazapyr) imidazolinone; (glyphosate) none generally accepted; (aminopyralid, triclopyr) pyridine