Burdock, common (Arctium minus)

2,4-D LV ester or 2,4-D amine

Rate 2 lb ae/a

Time Before flower buds develop.

Remarks Plants should be actively growing at time of treatment.

Caution Avoid drift to sensitive crops.

Site of action Group 4: synthetic auxin

Chemical family Phenoxy acetic acid

aminopyralid (Milestone)

Rate 1 to 1.5 oz ae/a (4 to 6 fl oz/a Milestone)

Time Apply to actively growing plants in the rosette.

Remarks A nonionic surfactant at 1 to 2 quarts per 100 gal of spray enhances control under adverse environmental conditions.

Caution Do not allow drift to desirable vegetation. Many forbs (desirable broadleaf plants) can be seriously injured or killed. Do not exceed 7 fl oz/a Milestone per year.

Site of action Group 4: synthetic auxin

Chemical family Pyridine

diflufenzopyr + dicamba (Overdrive)

Rate 0.175 to 0.35 lb ae/a (4 to 8 oz/a)

Time Apply to actively growing plants.

Remarks For improved uptake if weeds are under moisture or temperature stress, use a nonionic surfactant or a methylated seed oil.

Caution Do not plant any crop within 30 days of application. Do not exceed 10 oz/a of Overdrive per season.

Site of action (diflufenzopyr) Group 19: inhibits indoleacetic acid transport; (dicamba) Group 4: synthetic auxin

Chemical family (diflufenzopyr) semicarbazone; (dicamba) benzoic acid

triclopyr + clopyralid (Redeem R&P)

Rate 1.5 to 2 pints/a

Time Apply when weeds are actively growing.

Remarks Add a nonionic surfactant at the surfactant manufacturer's recommended rate. Apply in at least 10 gal/a water by ground.

Caution Do not exceed 4 pints/a per year. Avoid drift to desirable vegetation. Note label restrictions on overseeding or reseeding.

Site of action (both) Group 4: synthetic auxin

Chemical family (both) pyridine