2,4-D (several trade names)
Rate 0.25 to 0.95 lb ae/A
Time Apply when the wheat is fully tillered but before jointing.
Remarks Individual 2,4-D labels vary slightly on use rates and application timing. Using the highest rate increases potential for crop injury. Do not graze or feed forage within 14 days after treatment with 2,4-D. Be aware that 2,4-D may be formulated with 3.74, 3.8, 5, 5.5, 5.6, and 6 lb ae/gal; be sure to use the correct amount of herbicide depending on the formulation. Amine formulations require 6 hr before they are rainfast and low volatile ester (LVE) formulations require 1 hr. REI 12 hr for the LVE formulation and 48 hr for the amine formulation.
Caution Do not forage or graze treated grain fields within 2 weeks after treatment. Do not feed treated straw to livestock. Do not permit 2,4-D to drift off target. Check label for maximum amount allowed per crop cycle. Do not exceed 1.425 lb ae/A per crop cycle. Do not apply through any type of irrigation system.
Site of action Group 4: synthetic auxin
Chemical family Phenoxy acetic acid
2,4-D amine or MCPA amine + dicamba (Clarity and others)
Rate 0.38 lb ae/A 2,4-D or 0.25 lb ae/A MCPA + 0.06 to 0.12 lb ae/A dicamba
Time Apply as soon as wheat is 4 to 8 inches tall (3 to 5 inches tall for MCPA) but before wheat exceeds the six-leaf stage. Weeds should be in the 2- to 3-leaf stage and rosettes less than 2 inches across.
Remarks Do not graze, feed forage, or harvest grain within 14 days after treatment with 2,4-D. REI 12 hr for the 2,4-D low volatile ester (LVE) formulation, 24 hr for dicamba, and 48 hr for the 2,4-D amine formulation.
Caution Do not let this combination drift off target. Do not make more than one application per crop cycle. Do not apply through any type of irrigation system.
Site of action (all) Group 4: synthetic auxin
Chemical family (2,4-D and MCPA) Phenoxy acetic acid; (dicamba) Benzoic acid
2,4-D + bromoxynil + fluroxypyr (Kochiavore)
Rate 0.209 to 0.313 lb ae/A 2,4-D and bromoxynil + 0.084 to 0.126 lb ae/A fluroxypyr (1 to 1-1/2 pint/A Kochiavore)
Time Apply from the 4-leaf to emergence of the flag leaf.
Remarks Use the higher rates when weeds are less susceptible of for heavy weed populations. To avoid injury, do not use with atrazine, crop oils or other adjuvants, such as non-ionic surfactants (NIS). Do not harvest treated forage or allow livestock to graze treated areas within 45 days of application. Do not feed treated straw to livestock. Do not apply within 40 days prior to harvesting grain and straw or within 14 days prior to cutting hay. Make no more than one postemergence application per growing season at a maximum of 1.5 pints per acre. REI 24 hr.
Caution Do not apply when crop canopy covers the weeds as poor control will result. Do not apply this product through any type of irrigation system. A 30-day plant back interval (PBI) is required for all crops listed on the label. A 120-day PBI is required for all other crops not listed on the label.
Site of action (2,4-D and fluroxypyr) Group 4: synthetic auxin; (bromoxynil) Group 6: photosystem II inhibitor
Chemical family (2,4-D and fluroxypyr) Phenoxy acetic acid; (bromoxynil) Nitrile
bicyclopyrone + bromoxynil (Talinor)
Rate 0.033 to 0.044 lb ai/A bicyclopyrone + 0.156 to 0.207 lb ae/A bromoxynil (13.7 to 18.2 fl oz/A Talinor)
Time Apply to spring wheat (including durum) from 2-leaf to pre-boot stage.
Remarks Co-packed with CoAct+ additive which must be added at the rate specified on the label. Compatible with many commonly used tank-mix partners. Add a crop oil concentrate (COC) at 1% v/v of the finished spray volume. Although COC is the preferred adjuvant, nonionic surfactant (NIS) may be substituted at 0.25% v/v (1 quart/100 gal spray solution). When tank-mixed with herbicides that have a built-in adjuvant, no additional adjuvant is needed. Rain occurring within 1 hr after application may reduce the efficacy of Talinor. REI 24 hr. Alliterations
Caution Do not graze livestock or harvest forage for hay from treated wheat or barley for a minimum of 30 days following application. Do not harvest grain for a minimum of 60 days following application. Do not feed treated wheat or barley straw to livestock for a minimum of 60 days following application. Do not exceed more than 18.2 fl oz/A per year. Follow label instructions on crop rotations. Do not apply this product through any type of irrigation system. Do not treat wheat underseeded with legumes.
Site of action (bicyclopyrone) Group 27: 4-hydroxyphenylpyruvatedioxygenase (HPPD) inhibitor; (bromoxynil) Group 6: photosystem II inhibitor
Chemical family (bicyclopyrone) Triketone; (bromoxynil) Nitrile
bromoxynil (Maestro 2EC, Brox 2EC, several other trade names)
Rate 0.25 to 0.5 lb ai/A (1 to 2 pints/A of Maestro 2EC or Brox 2EC)
Time Apply after wheat emergence and prior to the boot stage. Apply to the weeds up to the four-leaf stage, or 2 inches tall, or 1 inch diameter, whichever is first.
Remarks Be aware that bromoxynil is formulated as 2 lb and 4 lb ai/gal; be sure to use the correct amount of herbicide. This herbicide is very compatible with many other broadleaf herbicides. Control has been more consistent with tank-mixtures. Do not apply when crops are under moisture stress or when crop canopy covers the weeds as poor weed control will result. REI 24 hr.
Caution Do not graze for 45 days after application.
Site of action Group 6: photosystem II inhibitor
Chemical family Nitrile
bromoxynil + fluroxypyr + MCPA (Carnivore or Cleansweep M)
Rate 0.21 to 0.312 lb ai/A bromoxynil + 0.084 to 0.125 lb ae/A fluroxypyr + 0.21 to 0.312 lb ae/A MCPA (1 to 1.5 pints/A Carnivore)
Time Apply when wheat is in the 2-leaf stage up to and including flag leaf emergence. To suppress volunteer potatoes, apply before potato plants are 4 inches tall.
Remarks Apply 1 pint/A if seedlings of susceptible species are less than 4 inches tall. For seedlings 4 to 8 inches tall and volunteer potatoes, apply 1.5 pint/A. Do not apply when crop canopy covers the weeds as poor control will result. Rainfast within 1 hr after application. REI 24 hr.
Caution Do not allow mixture to drift off target. Do not apply within 40 days prior to harvesting grain, or within 14 days prior to cutting hay. Do not apply this product through any type of irrigation system. Do not apply more than 2.4 pints/A per crop season.
Site of action (bromoxynil) Group 6: photosystem II inhibitor; (fluroxypyr and MCPA) Group 4: synthetic auxin
Chemical family (bromoxynil) Nitrile; (fluroxypyr and MCPA) Phenoxy acetic acid
bromoxynil + MCPA (Bromac, Brox-M, several other trade names)
Rate 0.25 to 0.5 lb ai (bromoxynil)/A + 0.25 to 0.5 lb ai (MCPA)/A (1 to 2 pints/A Bromac or Brox-M)
Time Apply to fall and spring wheat from the 3-leaf to boot stage. Application timing to weeds depends on weed species, but generally up to the 4-leaf stage or 3 inches tall, whichever comes first. If weed forms rosette, apply before weeds exceed 1.5 inches in diameter. Most effective when applied to weeds up to 2 inch in diameter or 2 inches tall.
Remarks Use higher rate for larger or more resistant weeds. Be aware that bromoxynil + MCPA is formulated as 2 lb or 2.5 lb ai/gal; be sure to use the correct amount of herbicide depending on the formulation. Do not apply when crop is under moisture stress or when crop canopy covers the weeds, as poor weed control will result. Runoff of this product will be reduced by avoiding applications when rainfall is forecasted to occur within 48 hr. REI 24 hr.
Caution Do not graze for 45 days.
Site of action (bromoxynil) Group 6: photosystem II inhibitor; (MCPA) Group 4: synthetic auxin
Chemical family (bromoxynil) Nitrile; (MCPA) Phenoxy acetic acid
bromoxynil + pyrasulfotole (Huskie)
Rate 0.15 to 0.21 lb bromoxynil lb ai/A + 0.027 to 0.037 lb pyrasulfotole (11 to 15 fl oz/A Huskie)
Time Apply to active growing wheat after the one-leaf growth stage up to flag leaf emergence. For best results, apply to young actively growing weeds.
Remarks Compatible with many commonly used tank-mix partners. Spray additives such as ammonium sulfate (AMS), urea ammonium nitrate (UAN), or nonionic surfactant (NIS) may be used especially under challenging conditions to optimize herbicidal activity. Fertilizer additives should be applied at 0.5 to 1 lb/A. Do not use additives that alter the spray solution below 6.0 pH. Apply alone or in a tank-mix with other herbicides to actively growing weeds. Rain within 1 hr after application may reduce control. REI 24 hr.
Caution Do not apply more than once per season. Check label for crop rotation guidelines. Preharvest interval is 25 days for forage and 60 days for straw or grain. Do not tank-mix with tebuconazole fungicide. Do not apply this product with backpack or handheld application equipment. Do not apply this product through any type of irrigation system. Do not apply more than 15 fl oz/A per season. Do not graze or harvest forage within 25 days, grain, and straw within 60 days after application.
Site of action (pyrasulfotole) Group 27: 4-hydroxyphenylpyruvatedioxygenase (HPPD) inhibitor; (bromoxynil) Group 6: photosystem II inhibitor
Chemical family (pyrasulfotole) Pyrazole; (bromoxynil) Nitrile
carfentrazone (Aim EC)
Rate 0.008 to 0.031 lb ai/A (0.5 to 2.0 fl oz/A Aim EC)
Time Apply prior to planting up to the jointing stage of wheat growth. For best performance, apply to actively growing weeds up to 4 inches high and rosettes less than 3 inches across. May also be used as a preharvest aid to desiccate/defoliate labeled crops.
Remarks Apply alone or as a tank-mix with other herbicides to emerged and actively growing weeds. Use higher rates on more mature weeds or dense vegetative growth. Use a nonionic surfactant (NIS) at 0.25% v/v (2 pints/100 gal spray solution) with at least 80% active ingredient. When wheat grows in very dry soil, a high-quality sprayable liquid nitrogen fertilizer (2 to 4% v/v or 2 to 4 gal/100 gal spray solution) may be used in addition to the NIS. REI 12 hr.
Caution Do not exceed 2 fl oz/A per year. Crop injury may increase with tank-mixtures of carfentrazone with emulsifiable (EC) formulations of other herbicides, fungicides, or insecticides or with crop oil concentrate (COC), methylated seed oil (MSO), or silicone-based adjuvants. Do not harvest for forage within 7 days after application. Do not apply this product through any irrigation system.
Site of action Group 14: Protoporphyrinogen oxidase (PPO) inhibitor
Chemical family Triazolinone
chlorsulfuron (Glean XP) + another broadleaf herbicide with a different mode of action
Rate 0.130 to 0.261 oz ai/A (0.17 to 0.33 oz/A Glean XP). Do not exceed 0.33 oz/A Glean in an 18-month period.
Time Apply in spring any time after most weeds emerge and after crop is in the 2-leaf through second-joint, but before boot stage.
Remarks Chlorsulfuron controls a wide range of broadleaf weeds and inhibits Canada thistle but does not control nightshades. For best results with postemergence applications, add a nonionic surfactant (NIS) of at least 80% active ingredient at 0.25 to 0.5% v/v (1 to 2 quarts/100 gal spray solution), unless otherwise specified, and apply to actively growing weeds. Specific weed problems have various tank-mix possibilities; see label for recommendations. REI 4 hr.
Caution Do not use on soils above pH 7.9. Chlorsulfuron can persist in soil. Carefully follow label instructions about crop rotations. Many crops may not be planted within 2 years or longer after applying. 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. Do not harvest grain sooner than 45 days after application. Do not apply this product through any irrigation system. Do not apply during fallow. Only make one application per season.
Site of action Group 2: acetolactate synthase (ALS) inhibitor
Chemical family Sulfonylurea
chlorsulfuron + metsulfuron (Finesse) + another broadleaf herbicide with a different mode of action
Rate 0.0078 to 0.0117 lb ai/A chlorsulfuron + 0.0016 to 0.0023 lb ai/A metsulfuron (0.2 to 0.3 oz/A Finesse)
Time Apply after crop is in 2-leaf through second-joint, but before boot stage.
Remarks Finesse controls a wide range of broadleaf weeds and inhibits Canada thistle growth. For best results, weeds should be actively growing, and a nonionic surfactant (NIS) of at least 80% active Ingredient should be added at 0.125 to 0.5% v/v (0.5 to 2 quarts/100 gal spray solution). Do not use low rate or liquid nitrogen fertilizer as a substitute for NIS. For specific weed problems, various tank-mixes are possible; see the manufacturer's label for recommendations. REI 4 hr.
Caution Do not use on soils above pH 7.9 because Finesse can persist in soil. Carefully follow label instructions on crop rotations; many crops may not be planted for 2 years or longer after application (peas and lentils). Refer to label for cautions on tank-mix or sequential applications with organophosphate insecticides and applications just before or during adverse conditions such as cold or freezing weather. Do not make more than one application with this product or any other chlorsulfuron-containing product per growing season.
Site of action (both) Group 2: acetolactate synthase (ALS) inhibitor
Chemical family (both) Sulfonylurea
clopyralid (Stinger)
Rate 0.09 to 0.124 lb ae/A (0.25 to 0.33 pint/A Stinger)
Time Apply to actively growing weeds when crop is in 3-leaf to early boot growth stage. Only weeds emerged at application will be affected.
Remarks Effective on weeds in the sunflower and legume family such as clover, common cocklebur, common groundsel, mayweed chamomile, salsify, pineappleweed, sunflower, volunteer beans, and lentils. Addition of an adjuvant is not usually necessary, however, if a surfactant is desired, use a nonionic surfactant (NIS) with at least 80% active ingredient and do not exceed 0.5% v/v (2 quarts/100 gal spray solution). Extreme growing conditions such as drought or near freezing temperatures prior to, at, or following application may reduce weed control and increase risk of crop injury at all growth stages. Applications are rainfast within 6 hr after application. REI 12 hr.
Caution Do not apply if the spring wheat crop is underseeded with a legume. Do not harvest for hay. Do not plant alfalfa, asparagus, mint, or onions within 10.5 months after application. Do not plant dry beans, lentils, peas, potatoes (including potatoes grown for seed), and broadleaf crops grown for seed, excluding Brassica species for 18 months after application. Consult label for additional crop rotation restrictions related to annual precipitation. Do not exceed a total of 0.33 pint/A per year. Do not allow lactating dairy or meat animals to graze for 1 week after application. Do not harvest hay from treated grain fields. Do not apply by air during an air temperature inversion. Do not apply through any type of irrigation system.
Site of action Group 4: synthetic auxin
Chemical family Pyridine
clopyralid + 2,4-D amine (Curtail or Commando)
Rate 0.095 to 0.126 lb ae/A clopyralid + 0.5 to 0.67 lb ae/A 2,4-D amine (2 to 2.66 pints/A Curtail or Commando)
Time Apply in spring to young, actively growing wheat once 4 leaves have unfolded on the main stem and tillering has begun up to jointing stage (first node on stem detectable). Apply to weeds before exceeding 3 inches in height or diameter.
Remarks This combination is particularly effective on members of the sunflower family, including mayweed chamomile, sunflower, and Canada thistle. Controlling tough winter annual weeds such as corn gromwell and fiddleneck requires tank-mixing with other herbicides. Check Curtail or Commando labels for details on mixtures. Banvel tank-mixes may be useful in broadening the annual weed control spectrum but may reduce control of perennials, such as Canada thistle. Addition of an adjuvant is not usually necessary, however, if a surfactant is desired, use a nonionic surfactant (NIS) with at least 80% active ingredient and do not exceed 0.5% v/v (4 pints/100 gal spray solution). Extreme growing conditions such as drought or near freezing temperatures prior to, at, or following application may reduce weed control and increase risk of crop injury at all growth stages. Applications are rainfast within 6 hr after application. Do not apply this product through any type of irrigation system. REI 48 hr.
Caution Do not apply if the spring wheat is underseeded with a legume. Do not tank mix with 2,4-D or dicamba unless the risk of crop injury is acceptable. Curtail and Commando can persist in soil. Do not plant wheat, barley, oats, field corn, or grasses within 30 days of applying. Do not harvest hay from treated grain fields. Do not rotate to canola, flax, or sugar beets within 5 months after application. Do not rotate to asparagus, Brassica species grown for seed, cole crops, mint, onions, popcorn, or sweet corn for 12 months after application. Do not rotate to alfalfa, lentils, dry beans, lentils peas, potatoes (including potatoes grown for seed), broadleaf seed crops (excluding Brassica species), or safflower for at least 18 months after treatment, depending on annual precipitation. Carefully follow label rotation restrictions with other crops. Do not exceed a cumulative amount of 0.25 lb ai of clopyralid /A per single crop year.
Site of action (both) Group 4: synthetic auxin
Chemical family (clopyralid) Pyridine; (2,4-D) Phenoxy acetic acid
clopyralid + MCPA ester (Curtail M or Commando M)
Rate 0.092 to 0.12 lb ae/A clopyralid +0.51 to 0.68 lb ae/A MCPA ester (1.75 to 2.33 pints/A Curtail M or Commando M)
Time Apply in spring to actively growing weeds after grain has three unfolded leaves on the main stem, up to jointing stage (first node on stem detectable). Do not apply after the boot stage.
Remarks Apply before weeds exceed 3 inches in height or diameter. For Canada thistle, apply after most basal leaves emerge but before bud stage. Addition of an adjuvant is not usually necessary; however, if a surfactant is desired, use a nonionic surfactant (NIS) with at least 80% active ingredient and do not exceed 0.5% v/v (4 pints/100 gal spray solution). Extreme growing conditions such as drought or near freezing temperatures prior to, at, or following application may reduce weed control and increase risk of crop injury at all growth stages. Applications are rainfast within 6 hr after application. REI 12 hr.
Caution Do not apply if the spring wheat is underseeded with a legume. Do not tank-mix with 2,4-D or dicamba unless risk of crop injury is acceptable. Curtail M and Commando M can persist in soil. Do not plant wheat, barley, oats, field corn, or grasses within 30 days of applying. Do not rotate to canola, flax, or sugar beets within 5 months after application. Do not rotate to asparagus, Brassica species grown for seed, cole crops, mint, onions, popcorn, or sweet corn for 12 months after application. Do not rotate to alfalfa, lentils, dry beans, lentils peas, potatoes (including potatoes grown for seed), broadleaf seed crops (excluding Brassica species), or safflower for at least 18 months after treatment, depending on annual precipitation. Carefully follow label rotation restrictions with other crops. Do not apply this product through any type of irrigation system.
Site of action (both) Group 4: synthetic auxin
Chemical family (clopyralid) Pyridine; (MCPA) Phenoxy acetic acid
clopyralid + fluroxypyr (WideMatch, Colt AS, or other trade names)
Rate 0.094 to 0.125 ae/A clopyralid + 0.094 to 0.125 ae/A fluroxypyr (1 to 1.33 pints/A WideMatch)
Time Apply to actively growing spring wheat from the 3-leaf crop growth stage up to and including flag leaf emergence. Apply when weeds are actively growing, but before weeds are 4 inches tall or vining. For volunteer potato suppression, apply before potato plants are 6 inches tall.
Remarks This combination will control a number of weed species. It is particularly effective on Canada thistle, mayweed chamomile, catchweed bedstraw, wild buckwheat, common groundsel, kochia, Russian thistle, nightshade species, and volunteer beans, lentils, peas, and potato. Frost 3 days before or after application may reduce weed control and crop tolerance. Do not apply more than 1.33 pints/A per growing season. REI 12 hr.
Caution Do not apply if the spring wheat crop is underseeded with a legume. WideMatch and Colt AS residues in treated plant tissues that have not completely decayed may affect succeeding susceptible crops. Do not apply sooner than 40 days before harvest. Do not rotate to canola, cole crops (including Brassica species grown for seed), flax or sugar beets within 120 days after application. Do not rotate to alfalfa, asparagus, dry beans, mint, or onions for 12 months after application. Do not rotate to broadleaf crops grown for seed (excluding Brassica species), chickpeas, lentils, peas, or potatoes (including potatoes grown for seed) for at least 18 months after treatment. Carefully follow label rotation restrictions with other crops. Do not apply this product through any type of irrigation system. Do not allow livestock to graze treated areas or harvest treated forage within 7 days of application.
Site of action (both) Group 4: synthetic auxin
Chemical family (both) Pyridine
clopyralid + fluroxypyr + halauxifen (WideARmatch)
Rate 0.0897 to 0.1256 lb ae/A clopyralid + 0.1116 to 0.1562 lb ae/A fluroxypyr + 0.0044 to 0.0061 lb ae/halauxifen (14 to 19.6 fl oz/A WideARmatch)
Time Apply to wheat (including durum) from 2-leaf crop growth stage up to flag leaf emergence (Zadoks scale 39)
Remarks Only weeds emerged at time of treatment will be controlled. Best results are obtained from application made to seedling weeds. Do not allow livestock to graze on treated crops for 7 days following application. Do not apply more than 19.6 fl oz of WideARmatch per acre per growing season. REI 24 hr.
Caution Do not apply within 60 days of crop harvest. Do not apply to crops underseeded with legumes. Do not compost any plant material from the treated area. Do not apply WideARmatch through any type of irrigation system. Do not harvest hay from treated grain fields. When WideARmatch is applied with liquid fertilizer, non-ionic surfactant (NIS), crop oil concentrate (COC), or methylated seed oil (MSO) is not needed. Temporary crop injury may result when liquid fertilizer is used as the spray carrier.
Site of action (both) Group 4: synthetic auxin
Chemical family (clopyralid and fluroxypyr) Pyridine; (halauxifen) Arylpicolinate
dicamba (Clarity and others)
Rate 0.06 to 0.125 lb ae/A (2 to 4 fl oz/A Clarity)
Time Apply when wheat is in two- to six-leaf stage of growth and after weeds have emerged (two- to three-leaf stage or less than 2 inches in diameter).
Remarks To avoid crop injury, apply to wheat at the proper growth stage. Controls some weeds not controlled by 2,4-D. Do not apply to wheat underseeded to legumes. Rainfast within 4 hr. REI 24 hr.
Caution Do not let dicamba drift off target. Do not apply this product through any type of irrigation system. To avoid injuring desirable crops, do not apply dicamba near sensitive species or if air temperature is expected to exceed 85°F. Do not harvest within 7 days after application. Do not allow livestock to graze treated areas or harvest treated forage within 7 days of application.
Site of action Group 4: synthetic auxin
Chemical family Benzoic acid
florasulam + MCPA ester (Orion)
Rate 0.0044 lb florasulam + 0.31 lb MCPA ester/A (17 fl oz/A Orion)
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 (NIS) at 0.25% to 0.50% v/v (1 to 2 quarts/100 gal spray solution) and ammonium sulfate (AMS) 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 hr after application. REI 24 hr.
Caution Do not use on wheat varieties that are sensitive to ALS herbicides. Do not make a liquid fertilizer application 7 days before or after PerfectMatch application unless risk of crop response is acceptable. Do not apply if the spring wheat is underseeded with a legume. Do not apply this product through any type of irrigation system. Do not apply more than 1 pint/A per growing season. Limit NIS rate to 0.25% when tank mixing with up to 6 fl oz of EC formulated products per acre. Do not use any surfactant when total EC formulated products exceed 6 fl oz/Acre. Do not apply within 60 days of harvest. Do not allow livestock to graze treated crop within 7 days after application. Do not cut for hay within 28 days after application.
Site of action (pyroxsulam) Group 2: acetolactate synthase (ALS) inhibitor; (fluroxypyr and clopyralid) Group 4: synthetic auxin
Chemical family (pyroxsulam) Triazolopyrimidine; (fluroxypyr and clopyralid) Pyridine
fluroxypyr + florasulam (Starane Flex)
Rate 0.878 lb ae/A fluroxypyr + 0.0044 lb ai/A florasulam (13.5 fl oz/A Starane Flex)
Time Apply to actively growing wheat from the three-leaf growth stage up to flag leaf emergence. Apply when susceptible weeds are less than 4 inches tall and are actively growing.
Remarks Only weeds that have emerged at the time of application will be controlled. Weeds hardened off by cold weather or drought stress may not be adequately controlled or suppressed, and regrowth may occur. Generally, this product does not require the use of an adjuvant to achieve satisfactory weed control. An adjuvant may be added when applications are made under conditions of cool temperature, low relative humidity or drought, or when a tank-mix partner recommends the use of an adjuvant. Livestock may be grazed on treated crops 7 days following application. Applications are rainfast within 4 hr after application. REI 24 hr.
Caution Do not apply to crops underseeded with legumes. Do not apply this product through any type of irrigation system. This product has potential to leach. Do not apply excessive irrigation. Do not apply within 60 days of harvest. Do not apply more than 13.5 fl oz/A of Starane Flex per growing season. Extreme growing conditions, such as drought or near freezing temperatures prior to, at, or following time of application, may reduce weed control and increase the risk of crop injury at all stages of growth. Do not use more than once per season or use in successive years at the same site.
Site of action (fluroxypyr) Group 4: synthetic auxin; (florasulam) Group 2: acetolactate synthase (ALS) inhibitor
Chemical family (fluroxypyr) Pyrimidine, (florasulam) Triazolopyrimidine
fluroxypyr + halauxifen (Pixxaro EC)
Rate 0.109 lb ae/A fluroxypyr + 0.00469 lb ae halauxifen/A (6.0 fl oz/A Pixxaro EC)
Time Apply to wheat (including durum) from 2-leaf crop growth stage up to flag leaf emergence (Zadoks scale 39).
Remarks Only weeds emerged at time of treatment will be controlled. For best results, apply when susceptible broadleaved weed seedlings are active growing and less than 4 inches tall. Livestock maybe grazed on treated crops 7 days following application. Use sufficient spray volume to provide thorough coverage and uniform spray pattern. Generally, this product does not require the use of an adjuvant to achieve satisfactory control. REI 12 hr.
Caution Do not apply within 60 days of crop harvest. Do not apply closer than 21 days before cutting of hay. Do not compost any plant material from treated area. When Pixxaro EC is applied with liquid fertilizer, non-ionic surfactant (NIS), crop oil concentrate (COC), or methylated seed oil (MSO) is not needed. Temporary crop injury may results when liquid fertilizer is used as the spray carrier.
Site of action (both) Group 4: synthetic auxin
Chemical family (fluroxypyr) Pyridine; (halauxifen) Arylpicolinate
fluroxypyr + thifensulfuron-methyl (Sentrallas)
Rate 1.12 to 2.24 oz ae/A fluroxypyr + 0.22 to 0.44 oz ai/A thifensulfuron-methyl (7 to 14 fl oz/A Sentrallas)
Time Apply to actively growing wheat after the crop is in the 2-leaf stage, but before the flag leaf is visible. Annual broadleaf weeds must be past the cotyledon stage and actively growing.
Remarks Tank mix compatibility with many commonly used broadleaf and grass herbicides, fungicides, insecticides, liquid fertilizers, and spray adjuvants (see current product label for specific restrictions, precautions, and details). For best results, apply to young, actively growing weeds that are less than 4 inches in height or diameter. To reduce potential of crop injury, tank mix with 2, 4-D ester and apply after the crop is in the tillering stage of growth. Thorough coverage of target weeds is essential. Rain-fast 1 hr after application. REI 24 hr.
Caution Do not exceed 14 fl oz/A when making a single application or 17.8 fl oz/A for the entire season. Do not apply through any type of irrigation system, to crops underseeded to legumes or grasses as injury to forage may result, and tank mix with Malathion because crop injury may result. Do not graze or harvest treated forage within 7 days of application, and do not harvest hay within 30 days of application or grain within 45 days of application. Do not apply to wheat that is stressed by severe weather conditions, drought, low fertility, water saturated soil, disease, or insect damage, as crop injury may result. Risk of injury is greatest when crop is in the 2 to 5 leaf stage.
Site of action (fluroxypyr) Group 4: synthetic auxins; (thifensulfuron-methyl) Group 2: acetolactate synthase (ALS) inhibitor
Chemical family (fluroxypyr) Pyridine carboxylic acid; (thifensulfuron-methyl) Sulfonylurea
fluroxypyr + thifensulfuron + tribenuron (Supremacy)
Rate 1.25 to 1.875 oz ae/A fluroxypyr + 0.225 to 0.337 oz ai/A thifensulfuron + 0.075 to 0.112 oz ai/A tribenuron (5 to 7.5 oz/A Supremacy)
Time Apply after crop is in the 2-leaf stage, but before the flag leaf is visible. Apply at 5 oz/A when weeds are actively growing for control of most broadleaf weeds listed on the label. Supremacy can be applied at lower or higher rates under certain conditions. See rate chart on label for further information on weed species and herbicide rate.
Remarks Tank-mix compatibility with many commonly used broadleaf and grass herbicides, fungicides, insecticides, liquid fertilizers, and spray adjuvants (see current product label for specific restrictions, precautions, and details). Always use a surfactant, unless otherwise directed. Select a spray volume and delivery system that will ensure thorough coverage and a uniform spray pattern with minimum drift. Rainfast within 2 hr after application. REI 24 hr.
Caution Do not use more than 12.5 oz/A per growing season. Do not apply during bloom. Do not apply through any type of irrigation system. Treated fields should be managed to avoid water runoff for at least 6 hr after application. Do not graze treated fields or feed treated forage or hay. Harvested straw may be used for bedding and/or feed. Do not harvest mature crop or straw of wheat, barley, oats or triticale sooner than 45 days after the last application. Do not apply to wheat, barley, oat or triticale crops underseeded with another crop.
Site of action (fluroxypyr) Group 4: synthetic auxins; (thifensulfuron & tribenuron) Group 2: aceto-lactate synthase (ALS) inhibitors
Chemical family (fluroxypyr) Pyridine carboxylic acid; (thifensulfuron & tribenuron) Sulfonylurea
MCPA (MCPA Amine or MCPA Ester, several trade names)
Rate 0.25 to 0.75 lb ae/A for MCPA amine and 0.23 to 0.46 lb ae/A for MCPA ester
Time The 0.25 lb ae rate can be applied after the crop has four leaves. Higher rates can be used after crop is fully tillered but before jointing.
Remarks Individual MCPA labels may vary slightly on use rates, application timing, and grazing interval. This is particularly true with the amine, sodium salt, and ester formulations. Check label to ensure proper rate and application timing. If underseeded with labeled legumes, MCPA amine use rate is 0.125 to 0.25 lb ae/A. Grazing interval varies with specific product label. REI 12 hr for the MCPA ester formulation and 48 hr for the MCPA amine formulation.
Caution Do not permit MCPA to drift off target. Do not apply more than 0.75 lb ae/A per year. Do not apply this product through any type of irrigation system. Do graze meat animals on treated areas within 7 days of slaughter. Do not forage or graze dairy animals on treated areas within 7 days after treatment.
Site of action Group 4: synthetic auxin
Chemical family Phenoxy acetic acid
MCPA + fluroxypyr + clopyralid (Hat Trick, Weld, or other trade names)
Rate 0.34 to 0.45 lb ae/A MCPA + 0.096 to 0.128 lb ae/A fluroxypyr + 0.094 to 0.125 lb ae/A clopyralid (1.5 to 2 pints/A Hat Trick ]2.82EC]) for Hat Trick herbicide or 0.22 to 0.44 lb ae/A MCPA + 0.08 to 0.16 lb ae/A fluroxypyr + 0.0625 to 0.125 lb ae/A clopyralid (1 to 2 pints/A Weld [2.89EC]) for Weld herbicide.
Time Apply to actively growing wheat from the 3-leaf stage until flag leaf emergence for Hat Trick herbicide and up to and including flag leaf emergence for Weld herbicide. Be sure to apply to actively growing weeds, but before weeds are 4 inches tall or vining. Consult the label for information about specific weeds.
Remarks These products are rainfast within 6 hr after application. If foliage is wet at the time of application, control may be decreased. Extreme growing conditions such as drought or near freezing temperatures prior to, at, or following application may reduce weed control and increase the risk of crop injury at all growth stages. The addition of an adjuvant may optimize herbicidal activity when applications are made at lower use rates/carrier volumes, under conditions of cool temperature, low humidity or drought, or to small heavily pubescent kochia. Best control is achieved when kochia is a least 1 inch tall and not taller than 4 inches. Only weeds that have emerged at time of application will be controlled. Rainfast within 6 hr after application. REI 12 hr.
Caution Do not apply if the spring wheat is underseeded with a legume. Do not apply this product through any type of irrigation system. Do not allow livestock to graze treated areas or harvest treated forage within 7 days of application. Do not harvest grain and straw within 40 days of application. Refer to label for specific crop rotation restrictions. Do not apply more than 2.0 pints/A per year.
Site of action (all) Group 4: synthetic auxin
Chemical family (MCPA) Phenoxy acetic acid, (fluroxypyr and clopyralid) Pyridine
metsulfuron (Ally XP or other trade names) + another broadleaf herbicide with a different mode of action
Rate 0.06 oz ai/A (0.1 oz/A Ally XP)
Time In non-irrigated wheat, apply postemergence after wheat has two leaves but before boot stage; see label for postemergence application timing when using tank-mixes. In irrigated wheat, apply after crop begins tillering, but before boot.
Remarks Metsulfuron controls a wide range of broadleaf weeds and inhibits Canada thistle growth. For best results add a nonionic surfactant (NIS) of at least 80% active ingredient at 0.0625 to 0.5% v/v (0.25 to 2 quarts/100 gal spray solution). For weeds that are difficult to control, apply while they are actively growing and not more than 2 inches tall or wide. To broaden the spectrum of control, tank-mix with a suitable registered herbicide such as 2,4-D, bromoxynil, dicamba, fluroxypyr, or MCPA. Time application to coincide with recommendation for specific tank-mix partner. The first post-treatment irrigation should be delayed at 3 days after herbicide application, and should not exceed 1 inch of water. May be tank-mixed with 2,4-D or glyphosate and applied as a harvest aid. Do not apply to wheat undersown with legumes. Weed control may be reduced if rainfall or snowfall occurs soon after application. REI 4 hr.
Caution Do not use with liquid fertilizer solutions with pH less than 3.0. Do not use on soils above pH 7.9. Metsulfuron can persist in soil. Carefully follow label instructions about crop rotations. Many crops cannot be planted within 2 years or longer after applying. One 0.1 oz/A application within one calendar year on non-irrigated wheat. Do not apply this product through any type of irrigation system. See label for cautions on tank-mix or sequential applications with organophosphate insecticides, and applications just before or during adverse conditions such as cold or freezing weather. Do not harvest sooner than 10 days after application.
Site of action Group 2: acetolactate synthase (ALS) inhibitor
Chemical family Sulfonylurea
metsulfuron + thifensulfuron + tribenuron (Ally Extra SG or other trade names) + another broadleaf herbicide with a different site of action
Rate 0.155 to 0.259 oz ai/A (0.3 to 0.5 oz/A Ally Extra SG)
Time Apply after the crop is in the 2-leaf stage, but before the flag leaf is visible. Apply to young, actively growing weeds in the spring summer or fall.
Remarks Ally Extra may be tank-mixed with other suitable registered herbicides. Use the 0.5 oz/A rate for heavy weed infestations. For best results use 2,4-D or MCPA at 1/8 to 3/8 lb ai/A. Include a nonionic surfactant (NIS) having at least 60% active ingredient at 0.0625 to 0.5% v/v (0.5 to 4 pints/100 gal of spray solution). Rainfall or snowfall within the first 6 hr after application may result in reduced weed control. REI 12 hr.
Caution See label for Durum and Wampum variety in spring wheat information. Do not apply to wheat that is stressed by severe weather conditions, drought, low fertility, water saturated soil, disease, or insect damage, as crop injury may result. Risk of injury is greatest when crop is in the 2- to 5-leaf stage. Do not apply through any type of irrigation system. Do not use with liquid fertilizer solutions with pH less than 3.0. Do not use on soils above pH 7.9. Ally Extra can persist in soil. Carefully follow label instructions on crop rotations. Many crops cannot be planted within 2 years or longer after applying (peas, lentils, and mustards). See label for cautions on tank-mix or sequential applications with organophosphate insecticides, and applications just before or during adverse conditions such as cold or freezing weather. Do not harvest sooner than 45 days after application. Do not apply more than 0.5 oz/A per year. Do not apply this product through any type of irrigation system.
Site of action Group 2: acetolactate synthase (ALS) inhibitor
Chemical family Sulfonylurea
prosulfuron (Peak) + another broadleaf herbicide with a different mode of action
Rate 0.014 to 0.018 lb ai/A (0.38 to 0.5 oz/A Peak)
Time Apply postemergence from the 3-leaf to the second-joint stage of growth.
Remarks Results are best when weeds are young and actively growing. If tank-mixing with another broadleaf herbicide, prosulfuron may be applied at 0.25 to 0.5 oz/A. Apply with nonionic surfactant (NIS) of at least 80% ai at 1 to 2 quarts/100 gal spray solution, or a crop oil concentrate (COC) of at least 12% emulsifier at 1 to 4 pints/A. Rainfall or overhead irrigation within 4 hr after application may reduce weed control. Do not apply if cold, wet conditions that stress wheat are expected within 1 week after application. REI 12 hr.
Caution Do not let spray drift to non-target crops. Do not apply this product through any type of irrigation system. See label for cautions on tank-mix or sequential applications with organophosphate insecticides and applications just before or during adverse conditions such as freezing weather. Do not harvest grain until 60 days after application. Do not apply more than 1.0 oz/A per growing season. Carefully follow crop rotation instructions on label.
Site of action Group 2: acetolactate synthase (ALS) inhibitor
Chemical family Sulfonylurea
pyraflufen-ethyl (Vida)
Rate 0.0008 to 0.003 lb ai/A pyraflufen-ethyl (0.5 to 2.0 fl oz/A Vida)
Time May be applied preplant burndown or preemergence at 0.5 to 2 fl oz/A + other labeled herbicides, or postemergence at 0.5 to 1.0 fl oz/A from wheat emergence to flag leaf appearance. Apply when weeds are less than 4 inches tall or 3 inches in diameter.
Remarks Do not apply more than 3 fl oz/A per year for all after planting before crop emergence and postemergence uses. Control may be reduced with weeds larger than 4 inches tall. Addition of a nonionic surfactant (NIS) at 0.5% v/v is recommended for optimum weed control. Vida is rainfast within 1 hr after application. REI 12 hr.
Caution Do not make more than 2 applications or exceed 1 fl oz/A per year for postemergence use. Allow a minimum of 30 days between applications. Do not apply this product through any type of irrigation system. Do not graze wheat within 7 days of application. Do not plant rotational crops other than potato, corn, soybeans, or wheat for 30 days following the last application.
Site of action Group 14: Protoporphyrinogen oxidase (PPO) inhibitor
Chemical family Phenylpyrazole
saflufenacil (Sharpen)
Rate 0.022 to 0.045 lb ai/A (1.0 to 2.0 oz/A Sharpen)
Time Apply for burndown or residual control of weeds early preplant to preemergence. Sequential applications may be made as needed prior to wheat emergence. May also be used as a harvest aid/desiccant.
Remarks Residual preemergence applications of Sharpen must be activated by at least 0.5 inch of rainfall or sprinkler irrigation prior to weed seedling emergence. Do not apply more than a maximum cumulative amount of 4.0 oz/A Sharpen per cropping season. An adjuvant system is required for optimum broadleaf burndown activity. This includes methylated seed oil (MSO) at 1% v/v (1 gal/100 gal spray solution) plus ammonium sulfate (AMS) at 1 to 2% w/v (8.5 to 17 lb/100 gal spray solution) or urea ammonium nitrate (UAN) at 1.25 to 2.5% v/v (1.25 to 2.5 gal/100 gal spray solution). Do not use nonionic surfactant (NIS) as a substitute for MSO. Performance will depend on amount of rainfall for activation, soil texture, and broadleaf species population. Rainfast with 1 hr of application. REI 12 hr.
Caution Do not apply this product through any type of irrigation system. Do not apply following wheat emergence or crop injury will occur. Do not feed or graze for 30 days after application.
Site of action Group 14 Protoporphyrinogen oxidase (PPO) inhibitor
Chemical family Pyrimidinedione
thifensulfuron (Harmony SG) + another broadleaf herbicide with a different mode of action
Rate 0.225 to 0.45 oz ai/A (0.45 to 0.9 oz/A Harmony SG)
Time After crop is in 2-leaf stage but before flag leaf is visible.
Remarks Results are best when weeds are young and actively growing, temperature is 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 (NIS) with at least 60% NIS at 0.0625 to 0.5% v/v (0.5 to 4 pints/100 gal spray solution. Crop oil concentrate (COC) or methylated seed oil (MSO) may be used at 1% v/v (1 gal/100 gal spray solution or 2% v/v (2 gal/100 gal spray solution) under arid conditions. Sequential treatments may be made provided total amount applied to crop does not exceed 1.5 oz/A. Weed control may be reduced if rainfall or snowfall occurs soon after application. REI 4 hr.
Caution Do not let spray drift to adjacent crop or land. Do not apply during an air temperature inversion. Immediately after spraying, thoroughly clean mixing and spray equipment with an approved tank cleaner. Do not apply this product through any type of irrigation system. Do not plant any crop except wheat, barley, soybeans, field corn, or oats for 45 days after application. Do not harvest grain within 45 days after application.
Site of action Group 2: acetolactate synthase (ALS) inhibitor
Chemical family Sulfonylurea
thifensulfuron + tribenuron (2:1 formulations) + another broadleaf herbicide with a different mode of action
Rate 0.15 to 0.3 oz ai/A thifensulfuron + 0.075 to 0.15 oz ai/A tribenuron (0.45 to 0.9 oz/A Harmony Extra SG)
Time Apply after wheat reaches two-leaf stage but before flag leaf is visible.
Remarks This includes Harmony Extra SG, Harmony Extra XP, and other generics. Be aware that, although they contain the same ratio of thifensulfuron to tribenuron, these products are formulated differently. Be sure to use the correct amount of herbicide. Always include a spray adjuvant with applications of Harmony Extra SG. In addition to a spray adjuvant, an ammonium nitrogen fertilizer may be used (consult label for more options). Apply when weeds are young and actively growing, and when conditions include temperatures of 60°F or higher and adequate soil moisture before, during, and immediately after treatment. See most recent grass herbicide label for tank-mix restrictions. Weed control may be reduced if rainfall or snowfall occurs soon after application. REI 12 hr.
Caution Do not apply to wheat crops underseeded with another crop. Do not let spray drift to adjacent crops or land. Do not apply during an air temperature inversion. Immediately after spraying, thoroughly clean mixing and spray equipment. Wheat and barley may be planted any time after application. Sugar beets, winter rape, and canola may be planted 60 days after application. Do not use with liquid fertilizer solutions with a pH less than 3.0. All other crops may be planted 45 days after application. Do not harvest grain within 45 days after application. Do not apply this product through any type of irrigation system.
Site of action (both) Group 2: acetolactate synthase (ALS) inhibitor
Chemical family (both) Sulfonylurea
thifensulfuron + tribenuron (1:1 formulations, Affinity BroadSpec and Edition BroadSpec) + another broadleaf herbicide with a different mode of action
Rate 0.1 to 0.25 oz ai/A thifensulfuron + 0.1 to 0.25 oz ai/A tribenuron (0.4 to 1 oz/A Affinity BroadSpec and Edition BroadSpec)
Time Apply after wheat is in 2-leaf stage but before flag leaf is visible.
Remarks Affinity BroadSpec and Edition BroadSpec are 1:1 formulations of thifensulfuron and tribenuron. Must be tank-mixed when applying at 0.4 to 0.6 oz/A. Add a nonionic surfactant (NIS) at 0.06% to 0.5% v/v (0.25 to 2 quarts/100 gal spray solution). Use with another broadleaf herbicide with a different mode of action. Results are best when weeds are young and actively growing, temperature is 60°F or higher, and soil moisture is adequate before, during, and immediately after treatment. See most recent grass herbicide label for tank-mix restrictions. Weed control may be reduced if rainfall or snowfall occurs soon after application. REI 12 hr.
Caution Do not exceed 1.0 oz/A per crop season. Do not let this herbicide drift off target. Do not apply this product through any type of irrigation system. Do not use with liquid fertilizer solutions with a pH less than 3.0. Do not plant any crop except wheat or barley for 45 days after application. Sugar beets, winter rape, and canola cannot be planted until 60 days after application. Do not harvest grain within 45 days after application.
Site of action (both) Group 2: acetolactate synthase (ALS) inhibitor
Chemical family (both) Sulfonylurea
thifensulfuron + tribenuron (4:1 formulations, Affinity TankMix, Edition TankMix, and other trade names) + another broadleaf herbicide with a different mode of action
Rate 0.24 to 0.4 oz ai/A thifensulfuron + 0.06 to 0.1 oz ai/A tribenuron (0.6 to 1 oz/A Affinity TankMix and Edition TankMix 50SG)
Time Apply after spring wheat is in 2-leaf stage, but before flag leaf is visible.
Remarks Affinity TankMix and Edition TankMix are 4:1 formulations of thifensulfuron and tribenuron. Add a nonionic surfactant (NIS) at 0.25 to 0.5% v/v (1 to 2 quarts/100 gal spray solution). Use with another broadleaf herbicide with a different mode of action. Results are best when weeds are young and actively growing, temperature is 60°F or higher, and soil moisture is adequate before, during, and immediately after treatment. See most recent grass herbicide label for tank-mix restrictions. Sequential treatments may be made provided total amount applied to crop does not exceed 1.8 oz/A per year. Weed control may be reduced if rainfall or snowfall occurs soon after application. REI 12 hr.
Caution Do not let this herbicide drift off target. Do not use with liquid fertilizer solutions with a pH less than 3.0. Do not plant any crop except wheat or barley for 45 days after application. Sugar beets, winter rape, and canola cannot be planted until 60 days after application. Do not harvest grain within 45 days after application.
Site of action (both) Group 2: acetolactate synthase (ALS) inhibitor
Chemical family (both) sulfonylurea
thifensulfuron + tribenuron + metsulfuron (Ally Extra SG) + another broadleaf herbicide with a different mode of action
Rate 0.082 to 0.137 oz ai/A thifensulfuron + 0.041 to 0.068 oz ai/A tribenuron + 0.033 to 0.054 oz ai/A metsulfuron (0.3 to 0.5 oz/A Ally Extra SG)
Time Apply after the crop is in the 2-leaf stage, but before the flag leaf is visible. The only exception is for Wampum spring wheat. Make applications to this variety after the crop is tillering, but before boot state. Apply in combination with 2,4-D.
Remarks Ally Extra may be tank-mixed with other suitable registered herbicides. Include a nonionic surfactant (NIS) having at least 80% active ingredient at 0.125 to 0.25% v/v (1 to 2 pints/100 gal spray solution). Rain or snowfall within the first 6 hr after application may result in reduced weed control. REI 12 hr.
Caution Do not apply this product through any type of irrigation system. Do not use on soils above pH 7.9. Ally Extra can persist in soil. Carefully follow label instructions on crop rotations. Many crops cannot be planted within 2 years or longer after applying (lentils and mustards, depending on pH and rainfall). See label for cautions on tank-mix or sequential applications with organophosphate insecticides, and applications just before or during adverse conditions such as cold or freezing weather.
Site of action Group 2: acetolactate synthase (ALS) inhibitor
Chemical family Sulfonylurea
triasulfuron (Amber) + another broadleaf herbicide with a different mode of action
Rate 0.21, 0.26, or 0.35 oz ai/A (0.28, 0.35, or 0.47 oz/A Amber)
Time Apply at any preboot-growth stage.
Remarks Control is best when weeds are actively growing and less than 2 inches tall or wide. Add a nonionic surfactant (NIS) of at least 80% active ingredient at 0.25 to 0.5% v/v (1 to 2 quarts/100 gal spray solution). Use 0.35 to 0.47 oz/A if the weeds are at or above the maximum height. Preplant or preemergence applications can be made to control or suppress certain weeds. REI 4 hr.
Caution Triasulfuron can persist in soil. Follow label instructions when rotating to barley. At these rates, wheat can be reseeded immediately after application; all other crops require a field bioassay. Do not plant Durum wheat less than 8 months after an application. Other spring and winter wheat varieties may be replanted at any time. Do not let spray drift to non-target crops. Do not apply when wheat is stressed due to temperature extremes, excessive or too little moisture, disease, insects, or when extremes in temperature or rainfall are expected within one week of application. See label for use restrictions in sections of Washington and Oregon west of the Cascades. Do not apply with or sequentially to malathion. Do not apply more than 0.56 oz/A in one crop year. Do not apply this product through any type of irrigation system.
Site of action Group 2: acetolactate synthase (ALS) inhibitor
Chemical family Sulfonylurea
triasulfuron + dicamba (Rave)
Rate 0.022 triasulfuron + 0.138 lb ai/A dicamba (4 oz/A Rave)
Time Apply after emergence up to the 6-leaf growth stage.
Remarks Include nonionic surfactant (NIS) at 0.125 to 0.25% v/v (1 to 2 pints/100 gal spray solution) when water is the carrier. Controls many broadleaf weeds and may be tank-mixed with Aim, Ally, Bronate, MCPA, and 2,4-D. Rain or sprinkler irrigation within 4 hr of application may reduce herbicide effectiveness. REI 24 hr.
Caution Washington growers must abide by all sulfonylurea aerial application rules. Do not allow spray to drift to non-target crops or desirable plants. Do not apply this product through any type of irrigation system. Do not apply to crops underseeded with legumes. Preharvest interval is 37 days for hay or grain.
Site of action (triasulfuron) Group 2: acetolactate synthase (ALS) inhibitor; (dicamba) Group 4: synthetic auxin
Chemical family (triasulfuron) Sulfonylurea; (dicamba) Benzoic acid
tribenuron (Express [with TotalSol]) + another broadleaf herbicide with a different mode of action
Rate 0.125 to 0.25 oz ai/A (0.25 to 0.5 oz/A Express (with TotalSol))
Time After wheat is in 2-leaf stage but before flag leaf is visible.
Remarks Results are best when weeds are young and actively growing, temperature is 60°F or higher, and soil moisture is adequate before, during, and immediately after treatment. Controls only weeds that have emerged. Can be tank-mixed with 2,4-D, MCPA, bromoxynil and others. See label for full list. Include a surfactant at 0.06 to 0.5% v/v (0.5 to 4 pints/100 gal spray solution) with at least 60% nonionic surfactant (NIS). Crop oil concentrate (COC) or methylated seed oil (MSO) may be used at 1% v/v (1 gal/100 gal spray solution) or under arid conditions use 2% v/v (2 gal/100 gal spray solution. See most recent grass herbicide label for tank-mix restrictions. REI 12 hr.
Caution Do not allow spray to drift to adjacent crops or land. Do not apply during an air temperature inversion. Immediately after spraying, thoroughly clean mixing and spraying equipment. Do not apply through any type of irrigation system. Do not apply to wheat underseeded with another crop. Delay application of this product for at least 60 days after any in-furrow organophosphate insecticide applications. Wheat and barley may be planted any time after application. Oats may be replanted 1 day later in soils with pH <7.9. If pH is >7.9, wait 7 days. Plant sugar beets, winter rape, or canola no less than 60 days after application. All other crops may be planted 45 days after application. Do not harvest grain within 45 days after application.
Site of action Group 2: acetolactate synthase (ALS) inhibitor
Chemical family Sulfonylurea