Goatgrass, jointed (Aegilops cylindrica), barbed (Aegilops triuncialis), and ovate (Aegilops ovata)

glyphosate

Rate 0.38 to 0.75 lb ae/a

Time Apply to actively growing plants emerged before boot stage.

Remarks Use along field edges and other non-cropped areas to prevent spread into bordering fields. Can be used as a spot treatment in certain crops (refer to label).

Caution Glyphosate is not selective.

Site of action Group 9: inhibits EPSP synthase

Chemical family None generally accepted

imazapic (Plateau)

Rate 0.063 to 0.188 lb/a

Time Apply preemergence for best results.

Remarks Use lower rates for dry climates and low leaf litter and higher rates as moisture increases and/or leaf litter increases. Selective to most native grasses. Higher rates may suppress seed of some cool-season grasses.

Caution Before using, note crop rotation restrictions.

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

Chemical family Imidazolinone

sulfometuron (Oust)

Rate 1 to 1.5 oz ai/a (1.33 to 2 oz/a)

Time Apply in fall or in late winter before jointed goatgrass is 3 inches tall.

Remarks Selective to wheatgrass and smooth brome. Other desirable grasses may be stunted, stressed, or injured. Consult the label before using.

Caution Use on non-cropland such as roadsides. Do not let spray to drift onto sensitive crops.

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

Chemical family Sulfonylurea