Four-O'Clock, wild (Mirabilis nyctaginea)

2,4-D (various products)

Remarks Reported to control this plant, although data are lacking in the Pacific Northwest. Follow label instructions.

Site of action Group 4: synthetic auxin

Chemical family Phenoxy acetic acid

imazapic (Plateau)

Rate 0.5% solution as a spot treatment

Remarks Use a 1% v/v methylated seed oil as an adjuvant.

Caution Before using, note crop rotation restrictions.

Site of action Group 2: acetolactate synthase (ALS) inhibitor

Chemical family Imidazolinone