Broadleaf Weeds

2,4-D amine (several trade names) or MCPA (several trade names)

Rate 0.75 lb ae/a

Time Apply in spring when winter wheat has at least four tillers and 12 leaves, but before jointing.

Remarks Do not apply in the fall. Do not apply between jointing and dough stage of growth.

Site of action (both) Group 4: synthetic auxin

Chemical family (both) phenoxy acetic acid

bromoxynil (several trade names)

Rate 0.375 to 0.5 lb ai/a

Time Apply from winter wheat emergence to the boot stage. Apply to weeds up to the 4-leaf stage or 2 inches high or 1 inch wide, whichever is first. Certain weeds may be controlled when larger; see label for size recommendations and application timings.

Remarks Do not apply to crops under moisture stress. Do not exceed 0.5 lb ai/a total per season.

Site of action Group 6: photosystem II inhibitor

Chemical family Nitrile

bromoxynil + MCPA (Bronate Advanced)

Rate 0.25 to 0.5 lb ai/a bromoxynil + 0.25 to 0.5 lb ae/a MCPA (12.8 to 25.6 oz/a Bronate Advanced)

Time Apply to winter wheat after 3-leaf stage but before boot stage. Apply to weeds up to the 4-leaf stage or 2 inches high. Certain larger weeds may be controlled; see label for size recommendations and application timings.

Remarks Do not apply when crops are under moisture stress.

Site of action (bromoxynil) Group 6: photosystem II inhibitor; (MCPA) Group 4: synthetic auxin

Chemical family (bromoxynil) nitrile; (MCPA) phenoxy acetic acid

bromoxynil + bicyclopyrone (Talinor)

Rate 0.156 to 0.207 lb ae/a bromoxynil + 0.033 to 0.044 lb ai/a bicyclopyrone (13.7 to 18.2 oz/a Talinor)

Time Apply to winter wheat after 2-leaf stage up to pre- boot stage. Apply to weeds up to the 4-leaf stage or 2 inches high. Certain larger weeds may be controlled; see label for size recommendations and application timings.

Remarks Do not apply when crops or weeds are under moisture stress. Co-packed with CoAct+ additive which must be used with Talinor. COC at 1% v/v is the preferred adjuvant for use with Talinor.

Site of action (bromoxynil) Group 6: photosystem II inhibitor; (bicyclopyrone) Group 27:4-hydroxyphenylpyruvatediooxygenase (HPPD) Inhibitor

Chemical family (bromoxynil) nitrile; (bicyclopyrone) triketone

bromoxynil + MCPA + fluroxypyr (Carnivore)

Rate 0.20 to 0.31 lb ai/a bromoxynil + 0. 20 to 0.31 lb ae/a MCPA + 0.08 to 0.125 lb ae/a fluroxypyr (1 to 1.5 pints/a Carnivore)

Time Apply to winter wheat after 2-leaf stage through flag leaf emergence. Apply to weeds up to the 4-leaf stage, or 8 inches high. Certain larger weeds may be controlled; see label for size recommendations and application timings.

Remarks Do not apply when crops are under moisture stress. Do not apply more than 2.4 pints/a of Carnivore per growing season. Do not harvest treated wheat as forage or allow livestock to graze treated wheat within 45 days of application. Do not apply within 40 days of harvesting grain or straw.

Site of action (bromoxynil) Group 6: photosystem II inhibitor; (MCPA and fluroxypyr) Group 4: synthetic auxin

Chemical family (bromoxynil) nitrile; (MCPA) phenoxy acetic acid; (fluroxypyr) pyridine

bromoxynil + pyrasulfotole (Huskie)

Rate 0.186 to 0.254 lb ai/a (11 to 15 oz/a Huskie)

Time Apply to winter wheat from one leaf up to flag-leaf emergence. See label for weed size recommendations and application timings, but control of most species is best at the 11 fl oz/a rate when weeds have from one to six leaves.

Remarks For most consistent weed control under adverse growing conditions, add AMS or an ammonium nitrogen source as directed by the spray additives section of the label. Huskie may be tank mixed with a variety of other broadleaf and grass herbicides; see label for instructions.

Caution See label for crop rotation restrictions. Wheat, triticale, and oats may be planted 7 days after application; alfalfa, canola, field pea, sugar beet and potatoes 9 months after application. Do not graze or harvest treated winter wheat for forage within 25 days of application, or harvest grain and straw within 60 days of application. Do not exceed one application of Huskie to winter wheat per year. Do not tank mix Huskie with tebuconazole fungicides.

Site of action (bromoxynil) Group 6: photosystem II inhibitor; (pyrasulfotole) Group 27: inhibits 4hydroxyphenylpyruvatedioxygenase (4-HPPD)

Chemical family (bromoxynil) nitrile; (pyrasulfotole) isoxazole

carfentrazone (Aim EC)

Rate 0.008 to 0.031 lb ai/a (0.5 to 2 oz/a Aim EC)

Time For emerged winter wheat, use 0.5 to 1 oz/a Aim EC. Use higher rates when treating more mature weeds or dense vegetative growth. Do not exceed 0.031 lb ai/a of Aim per season. Apply to emerged and actively growing weeds. Apply to wheat up to jointing stage. For best performance, apply to weeds up to 4 inches high and rosettes less than 3 inches across.

Remarks Aim is excellent for controlling bedstraw and speedwells. Use with an 80% ai nonionic surfactant at 2 pints/100 gal.

Caution Plant registered crops any time after applying Aim, subject to specific crop rotation restrictions on the Aim label. Root and leafy vegetables may be planted 30 days after application. All other crops may be planted 12 months after application. Crop injury may increase with tank-mixtures; see label for tank mixing guidelines.

Site of action Group 14: protoporphyrinogen oxidase inhibitor

Chemical family Triazinone

chlorsulfuron (several trade names) + another broadleaf herbicide with a different mode of action

Rate 0.008 to 0.016 lb ai/a

Time Apply in fall or spring any time after the crop is in the 2-leaf stage, but before boot.

Remarks Do not exceed 0.016 lb ai/a of chlorsulfuron in an 18-month period.

Caution Consult individual labels regarding crop rotation restrictions. Many crops may not be planted for 2 years or longer after application.

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

Chemical family Sulfonylurea

chlorsulfuron + metsulfuron (several trade names) + another broadleaf herbicide with a different mode of action

Rate 0.014 to 0.019 lb ai/a preemergence or fall postemergence; 0.009 to 0.014 lb ai/a spring postemergence. Do not exceed 0.019 lb ai/a of a chlorsulfuron + metsulfuron premix in an 18-month period.

Time Preemergence in fall or spring, or any time after wheat is in the 2-leaf stage but before boot stage.

Remarks When applying postemergence, use 80% ai surfactant at 1 to 2 quarts/100 gal for best results. This combination effectively controls speedwells. Use when weeds are small and actively growing.

Caution See label for crop rotation restrictions. Many crops cannot be planted for 2 year or longer after application. Perennial and annual ryegrass, and crimson clover may not be planted for 9 months, barley and oats for 10 months, or red clover for 15 months after an application. No restrictions on rotations to wheat, rye, or triticale.

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

Chemical family (both) sulfonylurea

dicamba (several trade names)

Rate 0.063 to 0.125 lb ae/a for early-season applications; up to 0.188 lb ae/a on fall-seeded wheat in western Oregon as a spring application only.

Time For best performance, apply when weeds are in the two- to 3-leaf stage and rosettes are less than 2 inches across. Applications must be before winter wheat jointing stage.

Remarks Tank mixing with other herbicides offers the best spectrum of weed control and herbicide resistant weed management. Consult product labels for rates and timing.

Site of action Group 4: synthetic auxin

Chemical family Benzoic acid

florasulam + halauxifen (Quelex)

Rate 0.075 oz ai/a florasulam + 0.075 oz ae/a halauxifen (0.75 oz/a Quelex)

Time Apply to winter wheat postemergence from the 2-leaf stage up to flag leaf emergence.

Remarks Results are best when weeds are young and actively growing. Use with a nonionic surfactant 0.25% v/v or crop oil concentrate or methylated seed oil (1% v/v) unless applied with an EC tank mix partner.

Caution See label for specific crop rotation restrictions.

Site of action (florasulam) Group 2: acetolactate synthase (ALS) inhibitor; (halauxifen) Group 4: synthetic auxin

Chemical family (florasulam) triazolopyrimidine sufonamide; (halauxifen) arylpicolinate

florasulam + MCPA (Orion)

Rate 0.004 lb ai/a florasulam + 0.31 lb ai/a MCPA (17 oz/a Orion)

Time Apply to winter wheat postemergence, from the 3-leaf stage up to jointing.

Remarks Results are best when weeds are young and actively growing. Orion will control chickweeds, wild buckwheat, mustard spp., and bedstraw and can be tank mixed with other grass and broadleaf herbicides to broaden the weed control spectrum.

Caution See label for specific crop rotation restrictions. For most crops the plant-back interval is 3 to 9 months. Do not graze wheat within 7 days of an Orion application, and do not harvest wheat within 60 days of an application.

Site of action (florasulam) Group 2: acetolactate synthase (ALS) inhibitor; (MCPA) Group 4: synthetic auxin

Chemical family (florasulam) triazolopyrimidine; (MCPA) phenoxy acetic acid

florasulam + fluroxypyr (Starane Flex)

Rate 0.092 lb ai/a (13.5 fl oz/a Starane Flex)

Time Apply to actively growing wheat from 3-leaf to flag leaf emergence. Apply when susceptible broadleaf weeds are actively growing and less than 4 inches tall.

Remarks Only weeds emerged at the time of treatment will be controlled. Best results are obtained from application made to seedling weeds.

Site of action Group 2: acetolactate synthase (ALS) inhibitor and Group 4: synthetic auxin

Chemical family (florasulam) triazolopyrimidine sulfonamide; (fluroxypyr) pyridine

fluroxypyr (Starane Ultra)

Rate 0.10 to 0.245 lb ai/a fluroxypyr (0.3 to 0.7 pint/a Starane Ultra)

Time For best performance, apply to emerged and actively growing broadleaf weeds less than 4 inches high or 1 inch wide. Use higher rate for susceptible broadleaf weeds up to 8 inches tall. Only weeds that have emerged at time of application will be controlled. Apply to 2-leaf winter wheat up to flag leaf emergence.

Remarks Do not exceed 0.7 pints/a per growing season.

Caution Do not harvest winter wheat for hay or silage from treated area within 7 days of application. Preharvest interval is 40 days.

Site of action Group 4: synthetic auxin

Chemical family Pyridine

fluroxypyr + bromoxynil (Starane NXT)

Rate 0.0625 to 0.125 lb ai/a fluroxypyr + 0.25 to 0.5 lb ai/a bromoxynil (14 to 27.4 oz/a Starane NXT)

Time For best performance, apply to emerged and actively growing weeds up to 4 to 8 inches tall depending on rate. Apply to wheat from 3-leaf stage through flag leaf emergence.

Remarks Provides control of broadleaf weeds including kochia, wild buckwheat, Russian thistle, and sunflower. Tank-mix compatible with MCPA, thifensulfuron or 2,4-D and most grass herbicides.

Caution Any rotational crop may be planted 120 days after application. Do not apply within 45 days of wheat harvest or allow livestock to graze within 45 days of application. Do not apply with fungicides containing strobilurin chemistry.

Site of action (fluroxypyr) Group 4: synthetic auxin; (bromoxynil) Group 6: photosystem II inhibitor

Chemical family (fluroxypyr) pyridine; (bromoxynil) nitrile

fluroxypyr + dicamba (Pulsar)

Rate 0.061 to 0.092 lb ae/a fluroxypyr + 0.047 to 0.071 lb ae/a dicamba (8.3-12.5 oz/a Pulsar)

Time For best performance, apply to emerged and actively growing broadleaf weeds in the 1- to 4-leaf stage and up to pre-bolt stage for some species. Apply to wheat up to the jointing stage.

Remarks Provides control of broadleaf weeds including kochia and Russian thistle along with many others. Tank-mix compatible with many broadleaf herbicides and some grass herbicides. See the Pulsar label for specific tank-mix recommendations and adjuvant recommendations

Caution Do not make more than one application of Pulsar per year. Do not apply more than 12.5 oz/a per year. Do not graze treated areas or harvest wheat as forage within 7 days of application. Do not apply within 40 days of harvesting grain or straw.

Site of action (both) Group 4: synthetic auxin

Chemical family (fluroxypyr) pyridine; (dicamba) benzoic acid

fluroxypyr + clopyralid + pyroxsulam (PerfectMatch)

Rate 0.097 lb ae/a fluroxypyr + 0.097 lb ae/a clopyralid + 0.013 lb ai/a pyroxsulam (1 pint/a PerfectMatch)

Time Apply to actively growing wheat from the 3-leaf to jointing stage. Treat after most weeds have emerged.

Remarks Apply with a nonionic surfactant at 0.25% to 0.50% v/v ( 1 to 2 quarts/100 gal spray solution) and ammonium sulfate at 1.5 lb/a. Warm, moist growing conditions promote active weed growth and enhance activity of PerfectMatch. Weeds hardened off by cold weather or drought may not be adequately controlled or suppressed, and may re-grow. PerfectMatch is rainfast within 4 hours after application.

Caution Do not apply more than 1 pint/a per growing season. Limit NIS rate to 0.25% when tank mixing with up to 6 fluid oz of EC formulated products per acre. Do not use any surfactant when total EC products exceed 6 fluid oz/acre. Do not apply within 60 days of wheat harvest.

Site of action (pyroxsulam) Group 2: acetolactate synthase (ALS) inhibitor; (fluroxypyr and clopyralid) Group 4: synthetic auxin

Chemical family (fluroxypyr) pyridine; (clopyralid) pyridine; (pyroxsulam) triazolopyrimidine sulfonamide

metsulfuron (several trade names) + another broadleaf herbicide with a different mode of action

Rate 0.004 lb ai/a

Time Apply postemergence after 2-leaf but before boot stage.

Remarks Metsulfuron controls a wide range of broadleaf weeds, and inhibits Canada thistle growth. For best results, add a nonionic surfactant of at least 80% ai at 1 to 2 quarts/100 gal. For weeds that are difficult to control, apply while they are actively growing and not more than 2 inches tall or in diameter. To broaden the spectrum of control, tank mix with a suitable registered herbicide. Time application to coincide with recommendation for specific tank-mix partner.

Caution Metsulfuron can persist in soil. Carefully follow label instructions about crop rotation restrictions.

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

Chemical family Sulfonylurea

prosulfuron (Peak) + another broadleaf herbicide with a different mode of action

Rate 0.009 to 0.018 lb ai/a (0.25 to 0.5 oz/a Peak)

Time Apply postemergence from the 3-leaf to second-joint stage.

Remarks Results are best when weeds are young and actively growing. Apply with nonionic surfactant of at least 80% ai at 1 to 2 quarts/100 gal or a crop oil concentrate of at least 12% emulsifier at 1 to 4 pints/a.

Caution Carefully follow label instructions on crop rotation restrictions. Do not let spray drift to non-target crops. See label for cautions on tank-mix or sequential applications with organophosphate insecticides and applications just before or during adverse conditions such as cold weather.

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

Chemical family Sulfonylurea

pyraflufen (Vida or ETX)

Rate 0.0008 to 0.002 lb ai/a (0.5 to 1.0 oz/a Vida or 0.3 to 0.6 oz/a ETX)

Time Apply to winter wheat that is 6 to 8 inches tall up to jointing. Apply to seedling weeds that are less than 4 inches tall or less than 3 inches in diameter if in the rosette stage.

Remarks For postemergence broadleaf weed control in winter wheat. May be tank mixed with the synthetic auxin herbicides to broaden the weed control spectrum. Always apply with a methylated seed oil or nonionic surfactant at a rate of 0.5% v/v for optimum activity.

Caution Do not tank mix with products containing bromoxynil because severe wheat injury may result. Do not exceed two applications per season. Allow a minimum of 30 days between applications. Do not graze wheat within 7 days of application or harvest wheat for hay within 21 days of application. The preharvest interval for grain is 60 days.

Site of action Group 14: protoporphyrinogen oxidase inhibitor

Chemical family Phenylpyrazole

thifensulfuron + tribenuron (several trade names) + another broadleaf herbicide with a different mode of action

Rate 0.014 to 0.028 lb ai/a

Time Apply after crop is in the 2-leaf stage through the boot stage.

Remarks Results are best when weeds are young and actively growing. For best performance, apply when conditions include temperatures of 60°F or higher and adequate soil moisture before, during, and immediately after treatment. Use with an 80% ai nonionic surfactant at 2 pints/100 gal.

Caution Wheat, barley, and oats may be replanted any time after application. Sugar beets and winter canola can be planted 60 days after application. All other crops can be planted 45 days after application.

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

Chemical family (both) sulfonylurea

thifensulfuron + tribenuron + fluroxypyr (Supremacy)

Rate 6 oz/a Supremacy

Time Apply after winter wheat is in the 2-leaf stage but before flag leaf emergence.

Remarks Results are best when applied to broadleaf weeds that are actively growing. For best performance, apply when conditions include temperatures of 60°F or higher and adequate soil moisture before, during, and immediately after treatment. Supremacy may be applied with basic blend, NIS + UAN or AMS or MSO + UAN or AMS adjuvants. See Supremacy label for instructions on tank mixing with additional grass and broadleaf herbicides and fungicides.

Caution Do not apply more than 7.5 oz/a in a single application or more than 12.5 oz/a in one growing season.

Site of action (thifensulfuron and tribenuron) Group 2: acetolactate synthase (ALS) inhibitor; (fluroxypyr) Group 4: synthetic auxin

Chemical family (thifensulfuron and tribenuron) sulfonylurea; (fluroxypyr) pyridine

thifensulfuron (several trade names) + another broadleaf herbicide with a different mode of action

Rate 0.014 to 0.028 lb ai/a plus nonionic surfactant

Time After crop is in the 2-leaf stage but before flag leaf is visible.

Remarks Results are best when weeds are young and actively growing. For best performance apply when temperatures are 60°F or higher and soil moisture is adequate before, during, and immediately after treatment. Can be tank mixed with grass herbicides. Include a nonionic surfactant of at least 80% ai at 1 quart/100 gal.

Caution Do not let spray drift to adjacent crop or land. Do not apply during an air temperature inversion. Immediately after spraying, thoroughly clean chemical from mixing and spray equipment with an approved tank cleaner. Do not plant any crop other than wheat, barley, soybeans, field corn, or oats for 45 days after applying.

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

Chemical family Sulfonylurea

triasulfuron + dicamba (Rave)

Rate 0.005 to 0.022 lb ai/a triasulfuron + 0.034 to 0.138 lb ai/a dicamba (1 to 4 oz/a Rave)

Time Apply to winter wheat postemergence from emergence up to jointing.

Remarks Results are best when weeds are young and actively growing. Apply with nonionic surfactant of at least 80% ai at 1 to 2 quarts/100 gal or a crop oil concentrate of at least 12% emulsifier at 1 to 4 pints/a.

Caution Carefully follow label instructions on crop rotation restrictions. Do not let spray drift to non-target crops. See label for cautions on tank-mix or sequential applications with organophosphate insecticides and applications just before or during adverse conditions such as cold weather. Follow label instructions on grain, grazing and forage harvest restrictions.

Site of action (triasulfuron) Group 2: acetolactate synthase (ALS) inhibitor; (dicamba) Group 4: synthetic auxin

Chemical family (triasulfuron) sulfonylurea; (dicamba) benzoic acid