Wild Oat

fenoxaprop (various trade names)

Rate 0.0825 lb ai/a fenoxaprop (10.6 oz/a of 1EC)

Time Apply to wheat from emergence to 70 days prior to harvest. Apply to wild oat in the two-leaf to two-tiller stage of growth.

Remarks Low soil-moisture, low humidity, and high temperatures before herbicide application might slightly reduce wild oat control.

Caution Do not tank mix with other herbicides, surfactants, or liquid fertilizers unless specifically recommended on the label.

Site of action Group 1: acetyl CoA carboxylase (ACCase) inhibitor

Chemical family Aryloxyphenoxy propionate

mesosulfuron + thiencarbazone (Osprey XTRA)

Rate 0.013 to 0.018 lb ai/a (3.2 to 4.75 oz/a Osprey XTRA)

Time Apply to winter wheat from wheat emergence to the two-node stage. Apply from one-leaf to two-tiller growth stage. See label for application timing and weed size.

Remarks Use the 4.75 oz/a rate except 3.2 oz/a may be used for wild oat. Treat heavy infestations of grassy weeds before they compete with the crop. Use only a non-ionic surfactant and a nitrogen source for adjuvants. Do not apply Osprey XTRA more than once per crop year.

Caution For winter wheat only.

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

Chemical family Sulfonylurea

triallate (Far-Go or Avadex)

Rate 1.25 to 1.5 lb ai/a (1.25 to 1.5 quarts/a Far-Go or 12.5 to 15 lb/a Avadex)

Time Apply before or after seeding.

Remarks Incorporate shallowly in two directions at right angles. Some stand thinning may occur on clay knobs or where wheat is dusted in, due to dry weather. May not control spring-germinating wild oat. Do not graze.

Site of action Group 8: lipid synthesis inhibitor but not an ACCase inhibitor

Chemical family Thiocarbamate