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2008 North Dakota Weed Control Guide

W-253, January 2008
R. K. Zollinger, NDSU Extension Weed Specialist
CHEMICAL WEED CONTROL FOR FIELD CROPS
Hard Red Spring and Durum Wheat, Winter Wheat and Barley

Herbicide 		Product/A
(ai/A)
Weeds
When to Apply
Remarks and Paragraphs

Preplant / PRE Herbicides to Crop
Glyphosate 0.38 to 1.5 lb ae
See Remarks. 		Emerged grass and broadleaf weeds and volunteer crops. Preplant or any time prior to crop emergence.lb ae/gal lb ai/gal   0.38 ae 0.75 ae 1.125 ae 1.5ae
3             4 =          16 fl oz  32 fl oz  48 fl oz  64 fl oz
4/4.17     5.4/5.1 = 12 fl oz  24 fl oz  36 fl oz  48 fl oz
4.5          5.5 =       11 fl oz  22 fl oz  32 fl oz  44 fl oz
5             6.1 =       10 fl oz  20 fl oz  30 fl oz  40 fl oz
Non-selective, non-residual, translocated, foliar herbicide. Apply with AMS fertilizer. Refer to label for adjuvant use. May be applied with dicamba at 2 fl oz/A.
A4-6 Q1 X1
Paraquat
RUP 		2 to 4 pt 2SL
1.3 to 2.7 pt 3SL
(0.5 to 1 lb) 		Emerged annual grass and broadleaf weeds. Non-residual, contact, herbicides; thorough coverage essential.
Apply with NIS at 0.25% v/v to small weeds.
Refer to pages 108-109 for commercial mixtures.
B4 S1 S3-4 Q3 X1
Aim
(carfentrazone) 		1/2 to 1 fl oz EW
(0.128 to 0.256 oz) 		Small broadleaf weeds.
Thifensulfuron 0.3 to 0.6 oz DF
0.45 to 0.9 oz SG
(0.225 to 0.45 oz) 		Several broadleaf weeds. May be applied with glyphosate.
Apply with a NIS at 0.25 to 0.5% v/v.
No crop rotation restrictions the following year.
Refer to pages 108-109 for commercial mixtures.
B22 S1 S3 S5 X1
Tribenuron 0.17 to 0.33 oz DF
0.25 to 0.5 oz SG
(0.125 to 0.25 oz)
Thifensulfuron + Tribenuron 4:1 ratio
2:1 ratio
1:1 ratio 		Broadleaf weeds including wild buckwheat and RUR canola. Improves broadleaf weed control including wild buckwheat when applied with glyphosate.
Apply with NIS at 0.25 to 0.5% v/v.
Refer to pages 108-109 for commercial mixtures.
B22 S1 S3 X1
Paramount
(quinclorac)


Not for Barley 		0.33 lb DF
(0.25 lb) 		Field bindweed: Runners at least 4 inches long.
May control foxtail species, cleavers, barnyardgrass, and volunteer flax. 		Always apply with MSO adjuvant at 1.5 pt/A. May add AMS at 2.5 lb/A or UAN at 1 gal/A to improve control. Apply after harvest but prior to frost.
Suggested use in a 3-year program by applying 0.33 lb DF/A the first year and 0.17 to 0.33 lb DF/A in following years.
B19 T1 T6 Y15 Y24
Everest / Pre-Pare
(flucarbazone)

Not for Barley or Durum Wheat 		0.2 to 0.4 oz WDG
(0.14 to 0.28 oz) 		Soil residue may control foxtail, mustard, and pigweed species. Preplant: 7 days prior to planting to jointing. See Everest listing on page 10.
NIS is not required if weeds are not emerged.


Hard Red Spring and Durum Wheat, Winter Wheat and Barley

Herbicide 		Product/A
(ai/A)
Weeds
When to Apply
Remarks and Paragraphs
Far-Go (triallate) HRSW & DURUM:
1 qt
10 lb 10G
(1)
BARLEY:
1.25 qt
12.5 lb 10G(1.25 lb) 		Wild oat. Spring: HRSW, Durum and Barley.
Apply before or after seeding.
PPI 3 or more days before seeding. 		Application before seeding: PPI with field cultivator set at 4 inches deep.
Two pass incorporation is recommended.
Application after seeding: Apply before kernel sprouts exceed 0.5 inch in length and incorporate with harrows set more shallow than seed.
A1 B14 S6
Buckle
(triallate & trifluralin)
DURUM & BARLEY:
10 to 12.5 lb G
(1 to 1.25 &
0.3 to 0.4 lb) 		Wild oat and foxtails. Fall: Apply within 3 weeks of freeze up.
Spring: Barley.
Prior to or after seeding. 		Do not apply to HRSW.
Incorporate within 24 hours after application. Second incorporation should be more shallow than first.
Stand reduction may occur. Do not apply on soil treated with trifluralin the previous year.
A1 A3 B14 B25 S2 S6 Y20 Y25 X1
Spring: For HRSW and Durum
10 lb G
(1 & 0.3 lb) 		Spring: HRSW and Durum: PPI only. Use only in designated counties in North Dakota.
Apply only to fields fallowed the previous year.
Do not apply to soil treated with trifluralin the previous year.
B14 B25 S6
Trifluralin

Not for
Winter Wheat 		1 pt 4E
5 lb 10G
(0.5 lb) 		Foxtail. Spring:
PPI. 		FOR BARLEY ONLY.
Incorporate twice 2 to 3 inches deep.
4 lb 10G (0.4) FOR DURUM WHEAT ONLY.
For foxtail suppression only.
A1 B23 S2 Y18 Y24 X1
3.5 to 4 lb 10G
(0.35 to 0.4 lb) 		FOR HRSW ONLY. For suppression of foxtail only. Use west of Hwy 3 only. S2
1 pt 4E
(0.5 lb) 		Spring:
After seeding. 		Plant 2 to 2.5 inches deep. Incorporate shallowly twice with flex-tyne or diamond harrow 1 to 1.5 inches deep. B23 S2 Y1 Y18 Y24 X1
1 pt 4E
5 lb 10G
(0.5 lb) 		Fall:
After September 1 until freeze-up. 		Incorporate once in fall within 24 hours after application. Keep spring incorporation depth more shallow than fall. Stand reduction may occur.
A1 A3 B23 S2 X1 Y1 Y18 Y24
3.5 to 5 lb 10G
(0.35 to 0.5 lb) 		FOR HRSW AND DURUM ONLY.
For foxtail suppression only.
S2

POST Herbicides to Crop
Prowl H2O
(pendimethalin)

Not for Barley 		1.5 to 3 pt
(0.7 to 1.4 lb) 		Foxtail and some small-seeded broadleaf weeds. Wheat:
1- to 3-leaf. 		Soil residue provides PRE control of weeds. Does not control emerged weeds. Adjust rate for soil type.
Allow a 60 day PHI. Refer to label for tank-mixtures.
MCPA amine MCPA ester
0.5 to 1.33 pt 4SL
0.5 to 1.33 pt 4EC
(0.25 to 0.66 lb) 		Broadleaf weeds. Crop: Emergence until prior to boot.
Winter wheat: In spring from 4-leaf until prior to boot. 		Apply 0.5 to 1 pt/A from emergence to tiller stage.
Use 1 pt/A for volunteer sunflower.
Use high rate for large or perennial weeds.
Refer to pages 108-109 for commercial mixtures.
B1 B2 S3-5
2,4-D amine
2,4-D ester
0.5 to 1 pt 4SL
0.5 to 1 pt 4EC
(0.25 to 0.5 lb) 		Crop: 3-leaf until prior to boot.
Winter wheat: Well tillered until prior to boot. 		2,4-D labels vary on application timing; follow label directions.
Do not apply from early boot to dough stage.
Do not apply to winter wheat in fall.
Refer to pages 108-109 for commercial mixtures.
B1 B2 S3-5
Dicamba 2 to 4 fl oz
(1 to 2 oz)
Barley: 2 to 3 fl oz
(1 to 1.5 oz) 		Broadleaf weeds including wild buckwheat, sunflower, Russian thistle and ALS- resistant kochia. HRSW: Up to 5-L
Durum: Up to 5-L
Barley: Up to 4-leaf
HRWW: pre-joint 		Apply at proper crop stage to avoid injury.
Dicamba must be applied before 6-leaf stage.
Use low dicamba rate and high MCPA rate on
4-leaf HRSW or durum.
Barley is relatively susceptible to injury from dicamba.
Do not apply dicamba with 2,4-D to barley.
B2 B11 S1 S3-5 X1 Y11 Y24

Hard Red Spring and Durum Wheat, Winter Wheat and Barley

Herbicide 		Product/A
(ai/A)
Weeds
When to Apply
Remarks and Paragraphs
Clopyralid & MCPA 1.75 to 2.33 pt
(0.09 to 0.12 &
0.5 to 0.68 lb) 		Broadleaf weeds and Canada thistle. Crop:
3-leaf until prior to boot. 		Apply to Canada thistle at the rosette to early bolting stage.
Do not harvest hay from treated fields.
Refer to narrative for crop rotational restrictions.
Refer to pages 108-109 for commercial mixtures.
B10 T2 T6 Y20 Y24
Clopyralid & 2,4-D 2 to 2.67 pt
(0.09 to 0.13 &
0.5 to 0.67 lb) 		Crop:
4-leaf until prior to boot.
Starane
(fluroxypyr) 		0.5 to 0.67 pt
(1.5 to 2 oz) 		Kochia including ALS resistant, volunteer flax, and few other broadleaf weeds. Crop: 2-leaf through flag leaf emergence.
Weeds:
4 to 8 inches tall. 		Refer to label for weeds controlled, registered tank-mix options, and rates.
Refer to pages 108-109 for commercial mixtures.
B10 S3
WideMatch
(clopyralid & fluroxypyr) 		1 to 1.33 pt
(0.09 to 0.125 &
0.09 to 0.125 lb) 		Broadleaf weeds including kochia (ALS-resistant and -susceptible), wild buckwheat, vol. flax, and Canada thistle. Crop: 3-leaf through flag leaf emergence.

Weeds: Up to 4 inches tall or vining. 		An economical formulation of clopyralid.
Apply with 2,4-D, MCPA, and Harmony GT to increase spectrum of broadleaf weed control. Compatible with all POST grass herbicides labeled in small grains. Refer to label for application information and rotational crop restrictions.
B10 S1 S3 T2 T6 Y20 Y24
Bromoxynil 1 to 2 pt
(0.25 to 0.5 lb) 		Small broadleaf weeds. Crop:
Emergence until prior to boot stage. 		Contact non-residual herbicide; apply to small weeds. Controls ALS-resistant kochia.
Refer to label for tank-mix options and pages 108-109 for commercial mixtures.
Bromoxynil & MCPA 1 to 2 pt 4EC
0.8 to 1.6 pt 5EC
(0.25 to 0.5 &
0.25 to 0.5 lb) 		Small broadleaf weeds including wild buckwheat, sunflower, Russian thistle and ALS-resistant kochia. Crop:
3-leaf stage until prior to boot stage. 		B1 B2 B8 S1 S3 S4 X1
Bromoxynil &
2,4-D 		0.75 to 1.5 pt
(0.18 to 0.38 &
0.25 to 0.5 lb)
Rates vary by label. 		Crop:
3-leaf stage until prior to boot stage.

B2 B8 S2 S6 X1
Starane NXT
(bromoxynil & fluroxypyr) 		14 to 21 fl oz
(4 to 6 oz &
1 to 1.5 oz) 		Crop:
3-leaf stage to flag leaf emergence. 		The standard rate is 14 fl oz/A. Higher rates or a tank-mix partner may be required for high weed populations and weeds greater than 4 inches tall. B2 B8 S2 S6 X1
Aim
(carfentrazone) 		1/2 fl oz EW
(0.128 oz) 		Small broadleaf weeds including pigweed and kochia. Crop:
Up to jointing stage.
Weeds: Small.
Up to 2 inches tall. 		Contact, non-residual herbicide. May cause cosmetic speckling/spotting on wheat leaves. Apply with NIS at 0.25% v/v. Refer to label or narrative for tank-mix options, and application information. Refer to pages 108-109 for commercial mixtures.
B4S1 S3 S5 X1
Rage D-Tech
(carfentrazone & 2,4-D) 		8 to 12 fl oz
(0.128 to 0.192 oz & 4 to 6 oz) 		Broadleaf weeds. Crop:
3-tillers to jointing stage.
Weeds: Small. 		Apply with NIS at 0.25% v/v. Crop leaf speckling may occur when dew is present on leaves. Do not apply with bromoxynil. Refer to label or narrative for additional information.
B4S1 S3 S5 X1
Huskie
(bromoxynil & pyrasulfotole & mefenpyr safener) 		11 to 15 fl oz EC
(0.18 to 0.24 lb) 		Most all annual broadleaf weeds including resistant weeds. Crop:
Up to flag leaf emergence.
Weeds: Up to 4 inches tall. 		Apply with AMS at 0.5 lb/A or UAN at 1 to 2 qt/A to optimize broadleaf weed control. Most crops can be planted the year following application. Refer to label for tank-mix options and additional information.
B8 B15 S1 S3-5 S7 X1

Hard Red Spring and Durum Wheat, Winter Wheat and Barley

Herbicide 		Product/A
(ai/A)
Weeds
When to Apply
Remarks and Paragraphs

Short Residual Sulfonylurea (SU) Herbicides
Thifensulfuron 0.3 to 0.6 oz DF
0.45 to 0.9 oz SG
(0.225 to 0.45 oz) 		Mustards, redroot pigweed,
lambsquarters,
wild buckwheat,
smartweed, and sunflower. 		Crop:
2-leaf until prior
to flag leaf emergence. 		Do not apply higher tribenuron rates with POST grass herbicides.
Addition of MCPA e or 2,4-D e enhances broadleaf weed control and crop safety.
Apply with a NIS at 0.125% v/v except when adding 2,4-D or MCPA at 0.75 pt/A.
Apply with another broadleaf herbicide to reduce weed resistance.
No crop rotation restrictions the following year.
Refer to label or narrative for list of registered tank-mixes.
Refer to pages 108-109 for commercial mixtures.
B22 S1 S3 S5 X1
Tribenuron 0.17 to 0.33 oz DF
0.25 to 0.5 oz SG
(0.125 to 0.25 oz) 		Mustards, marshelder,
prickly lettuce, Russian thistle, Canada thistle.
Thifensulfuron +
Tribenuron
4:1 ratio (TankMix)
2:1 ratio (H. Extra)
1:1 ratio (Brd.Spec) 		Product rates vary by ratio and formulation. Provides a broader spectrum of control than either a.i. alone. Choose ratio based on prevalent weeds.


Long Residual SU Herbicides
Metsulfuron 1/10 oz XP
(0.06 oz) 		Broadleaf weeds including perennial sowthistle.
Partial control of
wild buckwheat. 		Crop:
2-leaf until prior to boot. 		Addition of 2,4-D ester or MCPA ester improves broadleaf weed control and crop safety.
Apply with a NIS at 0.125% except when adding 2,4-D or MCPA at 0.75 pt/A.
Refer to label for crop rotation restrictions.
Apply with another broadleaf herbicide to reduce weed resistance.
Ally Extra at 2/10 oz/A contains 1/20 oz Ally + 0.15 oz Harmony Extra. Do not apply within 22 months of last metsulfuron treatment.
Do not apply to soils above pH 7.9.
Refer to section on herbicide resistance.
B17 S1 X1 Y3 Y6 Y24
Metsulfuron &
Thifensulfuron &
Tribenuron 		2/10 to 4/10 oz DF
(0.116 to 0.231 oz) 		Broadleaf weeds including perennial sowthistle.
Improved control of wild buckwheat. 		Crop:
2-leaf until prior to flag leaf emergence.
Agility
(dicamba & thifensulfuron & tribenuron & metsulfuron) 		1.6 to 3.2 oz SG
(1.16 to 2.32 oz) 		Most annual and perennial (top-growth only) broadleaf weeds. Crop:
2- to 6-leaf.
Peak
(prosulfuron) 		0.38 to 0.5 oz DF
(0.22 to 0.29 oz) 		Broadleaf weeds. Crop: 3-leaf until 2nd node is detectable. Refer to label for application information, herbicide and crop rotation restrictions.
A8 B20 X1 Y6 Y16 Y24


Very Long Residual SU Herbicides
Amber
(triasulfuron) 		0.28 to 0.56 oz DF
(0.21 to 0.42 oz) 		Broadleaf weeds. Crop: 2-leaf until prior to boot stage. Add NIS at 0.125 to 0.25%v/v.
Refer to label for application timings, tank-mix options, weeds controlled, soil pH restrictions, resistance weeds, and crop rotation restrictions.
B5 X1 Y3 Y6 Y24
Rave
(triasulfuron &
dicamba) 		HRSW = 4 oz DF
(0.352 to 2 oz)
Barley = 2 oz DF
(0.176 to 1 oz) 		HRSW : Up to
5-leaf stage.
Barley: Up to
4-leaf stage.
Chlorsulfuron 1/6 to 1/3 oz DF
(0.125 to 0.25 oz) 		Broadleaf weeds and suppression of foxtail and Canada thistle. Crop:
2-leaf until prior to flag leaf emergence. 		Apply with a NIS at 0.125% except when adding
2,4-De or MCPAe at 0.75 pt/A.
Refer to label for application timings, tank-mix options, weeds controlled, soil pH restrictions, resistance weeds, and crop rotation restrictions.
Refer to Glean ND Supplemental label for control of foxtail.
B9 X1 Y3 Y6 Y24
Chlorsulfuron & Metsulfuron) 2/10 to 4/10 oz DF
(0.15 to 0.3 oz)

Hard Red Spring and Durum Wheat, Winter Wheat and Barley

Herbicide 		Product/A (ai/A)
Weeds
When to Apply
Remarks and Paragraphs
POST Grass Herbicides
Axial
Axial XL
(pinoxaden + cloquintocet safener)
Not for Durum 		8.2 fl oz
16.4 fl oz
(0.05 lb) 		Green and yellow foxtail, wild and volunteer oat,
Persian darnel, and annual ryegrass. 		Crop: 2-leaf to boot.

Grasses: 1-leaf to 6-leaf + 3 tillers. 		Apply Axial with Adigor adjuvant (co-pack) at 9.6 fl oz/A. Axial XL is formulated with Adigor adjuvant. May be tank-mixed with most broadleaf herbicides. Refer to label for registered crops, crop and weed stage, application and tank-mix information, and restrictions. B7 S2 S6 X1
Achieve Liquid
(tralkoxydim) 		6.9 fl oz
(0.18 lb) 		Green and yellow foxtail, wild and volunteer oat,
Persian darnel, and annual ryegrass. 		Crop:
2-leaf to boot.
Foxtail:
1- to 5-leaf.
Wild oat:
1- to 6-leaf. 		Do not apply Achieve on spring wheat east of ND Hwy 281 or in the following ND counties: Dickey, LaMoure, Stutsman, Foster, Eddy, Ramsey, and Towner.
Add AMS at 7 to 15 lb/100 gal water. Add Supercharge at 0.5% v/v. Refer to label or narrative for tank-mix information and restrictions. B3 S2 S6 X1
Discover
Discover NG
(clodinafop + cloquintocet safener)

Not For Barley 		3.2 and 4 fl oz
12.8 to 16 fl oz
(0.05 to 0.06 lb) 		Wild and vol. oat, green and yellow foxtail,
barnyardgrass,
Persian darnel, and annual ryegrass. 		Wheat: 2-leaf until prior to boot.

Wild oat:
1- to 6-leaf.
Foxtails:
1- to 5-leaf. 		Discover is a co-pack of product plus DSV adjuvant to cover 40 to 50 acres/box.
Discover NG is formulated with DSV adjuvant. Apply with MSO adjuvant at 0.25% v/v.
Apply higher rates for Persian darnel and ryegrass.
Refer to label for tank-mix information.
B12 S2 S6 X1
Puma
(fenoxaprop-P + mefenpyr safener) 		0.33 to 0.66 pt
(0.04 to 0.08 lb) 		Wild oat, green and yellow foxtail, millets, corn, and barnyardgrass. Wheat:
Emergence to 60 days PHI.
Barley: 1-leaf to
4-leaf stage.
Grass weeds:
1-leaf to 2-tiller. 		Do not apply to barley after the 4-leaf stage of growth.
Apply 0.33 pt/A for green foxtail, vol. corn and millet.
Apply 0.4 pt/A for yellow foxtail and proso millet.
Apply 0.66 pt/A for barnyardgrass and wild oat.
Refer to label for tank-mixing information.
B21 S2 S6 X1
Avenge
(difenzoquat) 		2.5 to 4 pt
(0.62 to 1 lb) 		Wild oat Crop: Prior to flag leaf emergence.
Wild oat: 3- to 5-leaf stage. 		Labeled on all barley varieties. Use the high rate on 3-leaf wild oat. Injury may occur when crop is under stress. Refer to label for tank-mix options and registered wheat varieties.
Assert
(imazamethabenz)

Long residual 		1 to 1.5 pt
(0.31 to 0.47 lb) 		Wild oat, wild mustard, and other mustard species. Crop:
2-leaf to jointing.

Wild oat:
1- to 4-leaf stage. 		Refer to narrative for crop rotation restrictions.
Do not tank-mix with dicamba, or amine phenoxys. Use MSO-type adjuvants or NIS + petroleum oil adjuvant. Refer to label for tank-mix options and additional adjuvant information. B6 S6 Y2 Y6 Y24
Everest
(flucarbazone)

Not For Barley

Short to Long residual 		0.3 to 0.6 oz WDG
(0.21 to 0.42 oz) 		Wild oat, green foxtail, mustards, and pigweed. Partial control of
yellow foxtail, barnyardgrass, downy brome, Japanese brome and Persian darnel 		Wheat: 7 days PRE to prior to jointing.

Grass weeds:
Up to 4 leaves. 		Apply with NIS up to 0.25% v/v or basic pH blend adjuvant at 1% v/v except when adding an emulsifiable concentrate (EC) or ester formulated broadleaf herbicides. Apply 0.3 oz/A for green foxtail, 0.4 to 0.6 oz/A for wild oat, and 0.6 oz/A for high grass densities and weeds that are partially controlled.
2,4-D or dicamba is required for safening when tank-mixing with SU herbicides.
B13 S2 S6 X1 Y24
Maverick
(sulfosulfuron)

Not For Barley

Very Long residual 		2/3 oz DF
(0.5 oz) 		Downy brome,
Japanese brome,
quackgrass,
mustard species and volunteer sunflower. 		Wheat: Emergence to prior to jointing.
Bromes:
2- to 3- tillers.
Wild oat:
1- to 4-leaf stage. 		Add NIS at 0.5%v/v. Refer to label or narrative for application timings, tank-mix options, weeds controlled, resistance weeds, and crop rotation restrictions.
Fall applications provide greater brome and cheatgrass control than spring applications. Spring applications may control wild oat.
B16 X1 Y4 Y6 Y24
Olympus
(propoxy-carbazone)

Not For Barley

Very Long residual 		0.6 to 0.9 oz/A WG
(0.42 to 0.63 oz) 		Quackgrass, downy brome, Japanese brome, foxtail barley and mustard species. Wheat:
2-leaf to jointing.
Grasses:
2-leaf to 2-tiller.
Broadleaf weeds:
Less than 2 inches tall or in diameter. 		Not recommended for spring wheat due to injury.
Injury to spring wheat may significantly reduce yield.
Do not apply after jointing begins. Allow a 71 day PHI.
Apply with NIS at 0.25 to 0.5% v/v.
May be applied with fertilizer. Use high rate for wild oat and brome species. Refer to label for tank-mix options, crop rotational restrictions, and additional information.
B18 S2 S6 X1 Y24

Hard Red Spring and Durum Wheat, Winter Wheat and Barley

Herbicide 		Product/A
(ai/A)
Weeds
When to Apply
Remarks and Paragraphs
Rimfire
(mesosulfuron & propoxycarbazone & mefenpyr safener)
Not For Barley
Short to Long residual 		1.75 to 2.25 oz WG
(0.035 to 0.045 &
0.143 to 0.184 oz)
Wild oat, barnyardgrass, seedling foxtail barley, bromus grass species, and mustard species. Wheat: 1-leaf to flag leaf emergence.
Grasses:
1-leaf to 2-tiller.
Broadleaf weeds:
Less than 2 inches tall. 		Apply with MSO adjuvant at 1.5 pt/A, or NIS at 0.5% v/v + 28% UAN at 1 to 2 qt/A, or basic pH blend adjuvant at 1% v.v (0.8 to 1.6 pt/A). Do not use petroleum oil or adjuvants containing organosilicone because wild oat control will be reduced.
Refer to label for tank-mix options, crop rotational restrictions, and additional information.
B18 S2 S6 X1 Y24
Silverado
(mesosulfuron &
mefenpyr safener)

Not for Barley

Short residual 		1.75 to 2.25 oz WG
(0.035 to 0.045 oz) 		Wild oat,
mustard species, and
volunteer canola. 		Wheat: 1-leaf to
prior to jointing.
Wild oat:
1-leaf to 2-tiller.
Broadleaf weeds: Less than 2 inches tall. 		Do not apply after jointing begins.
Apply with a Bayer-approved adjuvant.
Will control ACC-ase resistant wild oat.
Allow a 55 day PHI.
Refer to label for tank-mix information, crop rotation restrictions, and additional information.
B18 S6 X1 Y24 Z1

HERBICIDE RESISTANT WHEAT

CLEARFIELD WHEAT

Herbicide 		Product/A
  (ai/A)
Weeds
When to Apply
Remarks and Paragraphs
Beyond
(imazamox)

Long residual 		4 fl oz
(0.5 oz) 		Annual grass and broadleaf weeds including wild oat, green and yellow foxtail, Japanese brome, downy brome and Persian darnel. Wheat: 4-leaf to prior to jointing.

Weeds: 1 to 3 inches tall. 		Apply only to Clearfield wheat varieties.
Apply with NIS at 0.25% v/v plus UAN at 1 to 2 qt/A.
Refer to label for weeds controlled, application information, and crop rotation restrictions.
Will suppress feral rye. Will not control ALS-resistant kochia and wild oat. ClearMax can be applied in winter wheat up to 18 fl oz/A.
A7 B24 L1 L4 X1 Y2 Y24
ClearMax
(imazamox & MCPA) 		4 + 8 fl oz
(0.5 & 4 oz)

Weed control from postemergence applications.
POST GRASS
HERBICIDES 		 Wild
oat		Green
foxtail		 Yellow
foxtail		 Barnyard
grass		 Downy
brome		 Japanese
brome		 Persian
darnel		 Annual
ryegrass		 Quack
grass		Foxtail
barley
Achieve E G-E G F N N G G N N
Assert F-G P P P - - - - N N
Axial E E G-E G-E N N E E N N
Beyond/ClearMax E E G-E E G-E E E G-E F -
Discover E E G-E E N N G-E G-E - N
Everest G-E E P-G F-G P-F G F-G P-F P-F F
Maverick** E P-F P-F P F-G G - P-F G -
Olympus G-E P-F P-F G F-G E N - F-G G
Puma E E E E N N - - N N
Rimfire G-E P-F P-F G P-F G F-G - F F-G
Silverado G P P N P P-F F-G - N P-F
*Early fall applications provide better control that late fall or spring. Earlier spring application are more effective than late spring or mid-season application.
**Suggested for use only in continuous wheat because of crop rotation restrictions.
Refer to page 121 for description of E-G-F-P-N.


OAT

Herbicide 		Product/A
(ai/A)
Weeds
When to Apply
Remarks and Paragraphs
Glyphosate 0.38 to 1.5 lb ae
See Remarks.
Emerged grass and broadleaf weeds. Preplant or any time prior to crop emergence. lb ae/gal lb ai/gal   0.38 ae 0.75 ae 1.125 ae 1.5ae
3             4 =            16 fl oz 32 fl oz 48 fl oz 64 fl oz
4/4.17     5.4/5.1 =   12 fl oz 24 fl oz 36 fl oz 48 fl oz
4.5          5.5 =         11 fl oz 22 fl oz 32 fl oz 44 fl oz
5             6.1 =         10 fl oz 20 fl oz 30 fl oz 40 fl oz
Non-selective, non-residual, translocated, foliar herbicide.
Refer to label for adjuvant use. Apply with AMS fertilizer. May be applied with 2,4-D.
A4-6 Q1
Aim
(carfentrazone) 		1/2 to 1 fl oz EW
(0.128 to 0.256 oz) 		Small broadleaf weeds. Apply to small weeds. Thorough coverage essential. Apply with NIS at 0.25% v/v.
B4 S1 S3-4 X1
MCPA amine MCPA ester 0.5 to 1 pt 4SL
0.5 to 1 pt 4EC
(0.25 to 0.5 lb) 		Broadleaf weeds. Oat:
Emergence until prior to boot stage. 		Possible oat injury at any stage.
B1-2 S3 X1
Bromoxynil 1 to 1.5 pt EC
(0.25 to 0.38 lb) 		Small broadleaf weeds including wild buckwheat, and volunteer sunflower. Bromoxynil is a contact herbicide; apply to small weeds.
Controls ALS-resistant kochia.
Refer to label for tank-mix options.
Refer to pages 108-109 for commercial mixtures.
B2 B8 S3 S4 X1
Bromoxynil & MCPA
(Premix) 		1 to 2 pt 4EC
0.8 to 1.6 pt 5EC
(0.25 to 0.5 &
0.25 to 0.5 lb) 		Oat:
3-leaf until prior to boot stage.
Dicamba +
MCPA 		2 to 4 fl oz +
0.5 to 0.75 pt 4L
(0.06 to 0.12 +
0.25 to 0.38 lb) 		Broadleaf weeds. Oat:
2- through 5-leaf stage. 		Use the low dicamba rate and high MCPA rate on 5-leaf oat.
Early application increases crop safety.
B2 B11 S1 S3 X1 Y13 Y24
Clopyralid & MCPAe 1.75 to 2.33 pt
(0.09 to 0.12 &
0.5 to 0.68 lb) 		Broadleaf weeds and Canada thistle. Oat: 3-leaf to jointing or to boot if risk of injury is acceptable. Apply to Canada thistle at the rosette to early bolting stage. Refer to narrative for crop rotational restrictions.
Refer to pages 108-109 for commercial mixtures.
B10 T2 T6 Y20 Y24
Starane
(fluroxypyr) 		0.67 pt
(2 oz) 		Kochia including ALS-resistant and volunteer flax. Oat:
2-leaf through flag leaf emergence.
Weeds: Small. 		Non-residual herbicide. Allow a 40 day PHI.
Refer to label for tank-mix options.
Refer to pages 108-109 for commercial mixtures.
B10 S3
WideMatch
(clopyralid & fluroxypyr) 		1 to 1.33 pt
(0.09 to 0.125 &
0.09 to 0.125 lb) 		Broadleaf weeds including kochia (ALS-resistant and -susceptible), wild buckwheat, vol. flax, and Canada thistle. Oat: 3-leaf through flag leaf emergence.

Weeds: Up to 4 inches tall or vining. 		An economical formulation of clopyralid.
Apply with 2,4-D, MCPA, or Harmony GT to increase spectrum of broadleaf weed control. Compatible with all POST grass herbicides labeled in small grains. Refer to label for application information and rotational crop restrictions.
B10 S1 S3 T2 T6 Y20 Y24
Thifensulfuron 0.3 to 0.4 oz DF
0.45 to 0.6 oz SG
(0.225 to 0.3 oz) 		Broadleaf weeds including wild buckwheat, cocklebur, ragweed and lanceleaf sage. Oat:
3- through 5-leaf stage but before jointing.
Do not use on Ogle, Porter, or Premier oat varieties. Refer to label for list of tank-mix herbicides. Addition of MCPAe at 0.75 pt/A enhances broadleaf weed control and oat safety.
Apply with a NIS at 0.125% v/v except when adding MCPA at 0.75 pt/A.
Refer to pages 108-109 for commercial mixtures.
B22 S1 S3 X1
Thifensulfuron & Tribenuron
4:1 ratio (TankMix)
2:1 ratio (H. Extra)
1:1 ratio (Brd.Spec) 		0.3 to 0.4 oz DF
0.45 to 0.6 oz SG
(0.225 to 0.3 oz)
Peak
(prosulfuron) 		0.38 to 0.5 oz DF
(0.22 to 0.29 oz) 		Broadleaf weeds. Oat: 3-leaf until 2nd node is detectable. Apply with a NIS at 0.25% v/v. Refer to label for list of tank-mix options, weeds controlled, and crop rotation restrictions. B20 X1 Y3 Y16 Y24

 SMALL GRAIN PRE/POST-HARVEST

Herbicide 		Product/A
(ai/A)
Weeds
When to Apply
Remarks and Paragraphs
Aim
(carfentrazone) 		1/2 to 1 fl oz EW
(0.128 to 0.256 oz) 		Small broadleaf weeds. Wheat:
Dough stage to harvest. 		Apply to small weeds. Thorough coverage essential. Apply with NIS at 0.25% v/v. Allow a 3 day PHI.
B5 S1 S3-4 X1
Rage D-Tech
(carfentrazone & 2,4-D) 		16 to 32 fl oz
(0.256 to 0.512 oz &
8 to 16 oz) 		Broadleaf weeds. Wheat:
Dough stage to harvest. 		Apply with MSO at 1 to 2% v/v or petroleum oil at 1.5 to 2% v/v. 28% N at 2 to 4% v/v or AMS at 2 to 4 lb/A may be added. Allow a 3 day PHI. B5 S1 S3-4 X1
2,4-D ester


For HRS, Durum, and Winter Wheat, Barley, and Rye 		1.5 to 3 pt 4EC/SL
(0.75 to 1.5 lb) 		 Use only when the weeds will interfere with harvest operations.
Do not feed straw to livestock. Use only 2,4-D brands labeled for preharvest application.
CAUTION: Drift to broadleaf crops is especially hazardous at this time.
B25-26 Q1 T4-6 X1 Z1
Dicamba +
2,4-D
For HRS, Durum, and Winter Wheat Only 		0.5 to 1 pt +
1 to 2 pt 4EC/SL
(0.25 to 0.5 +
0.5 to 1 lb) 		Wheat:
Hard-dough stage and green color is gone from the nodes (joints) of the stem. 		Allow a 7 day PHI.
Do not feed treated straw to livestock.
CAUTION: Drift to broadleaf crops is especially hazardous at this time.
B11 B25-26 B28 Q1 T5-6 X1 Y11 Y24 Z1
Ally
(metsulfuron)
+ 2,4-D
For HRS, Durum, and Winter Wheat and Barley Only 		1/10 oz XP
(0.06 oz) +
1.5 to 3 pt 4EC/SL
(0.75 to 1.5 lb) 		Wheat and barley:
Dough stage.
Allow a 10 day PHI. 		For use in wheat/fallow or continuous wheat.
Do not use if crop was treated previously with an ALS herbicide. Apply with NIS.
May be tank-mixed with dicamba in wheat for resistant weed management.
Ally has no grazing restrictions.
Refer to Ally label for crop rotation intervals.
Refer to 2,4-D label for grazing restrictions and for brands labeled for preharvest application.
B17 B25 B27 Y3 Y24
Glyphosate

For HRS, Durum and Winter Wheat and Feed Barley Only. 		Up to 0.75 lb ae
See Remarks.
Annual and perennial grass and broadleaf weeds including Canada thistle. Wheat and barley: Hard-dough stage, 30% or less grain moisture. Allow a 7 day PHI. lb ae/gal lb ai/gal 0.38 ae 0.57 ae 0.75 ae
3             4 =       16 fl oz 24 fl oz 32 fl oz
4/4.17     5.4 =    12 fl oz 18 fl oz 24 fl oz
4.5          5.5 =    11 fl oz 16 fl oz 22 fl oz
5             6.1 =    10 fl oz 15 fl oz 20 fl oz
Do not apply more than 0.75 lb ae/season.
Do not apply on wheat or barley grown for seed because reduced germination/vigor may occur.
Apply 0.75 lb ae/A for Canada thistle control.
May be applied with 2,4-D or dicamba for improved broadleaf weed control.
Apply with AMS fertilizer.
Follow label directions.
Refer to label for adjuvant use and additional information.
A4-6 B25-26 B29-30 T2 T6-7 X1 Z1

HERBICIDES REGISTERED ON SMALL ACREAGE CROPS IN NORTH DAKOTA

The following chart is only an aid to know registered herbicides on the following crops. Not all labels of similar active ingredients cover identical crops. Not all formulations are registered in the state of North Dakota. Refer to the ND Dept of Ag web site for formulations registered in the state. Many products require specific application instructions and not all formulations can be used in-crop with adequate crop tolerance. For example glyphosate is registered on most crops listed but glyphosate applied over-the-top of all crops listed below will kill crop plants. Glyphosate, in most cases, is labeled for weed control prior to planting or emergence of crops or as a directed application between rows with specialized equipment to prevent herbicide exposure to crop plants. User must refer to label of specific product:
1. To determine what crops are registered.
2. For application instructions.
3. For all other restrictions and use information. User must follow label directions.
Refer to pages 127 to 132 for additional information on products listed.

 Herbicides registered on small acreage crops.

BUCKWHEAT
Aim (carfentrazone)
ET (pyraflufen)
glyphosate 		oxyfluorfen
Poast (sethoxydim)

JUNEBERRY
glyphosate Poast (sethoxydim)

LAWN (Grass weed control)
Acclaim Extra (fenoxaprop), Dimension/Ultra (dithiopyr), Drive (quinclorac), Pendulum (pendimethalin), Weed B Gon Crabgrass Killer for Lawns (MSMA).

LAWN (Broadleaf weed control)
                                           MCP  2,4-D dic tric sulf
All in One Weed Killer*   MCPP  x        x    -     -
Coolpower                        MCPA  -        x    x     -
Horsepower                     MCPA   -       x     x     -
Trimec Classic                 MCPP  x       x     -      -
Trimenc Plus*                  MCPP  x       -     -       -
Trimec 889                        MCPA x        x    -       -
Turflon Ester                     -         -        -     x      -
WBG/Chickweed, clover... -       -        -     x      -
WBG Max                          MCPP  x        x    -      -
WBG Max - 25% more..    MCPA  -        x    x      -
Weed Stop for Lawns      MCPP  x       x     -      -
Weed Stop for Lawns2X MCPP   x       x     -     x
Abbreviation: dic = dicamba, tric = triclopyr, sulf = sulfentrazone, WBG = Weed B Gon. *Contains MSMA

MILLET
Aim (carfentrazone)
dicamba 		Peak (prosulfuron)
2,4-D

MINT
Assure II (quizalofop)
Basagran (bentazon)
bromoxynil
Chateau (flumioxazin)
clethodim
clopyralid
Diuron/Karmex (diuron) 		glyphosate
oxyfluorfen
paraquat
Poast (sethoxydim)
Prowl H2O (pendimethalin)
Spartan (sulfentrazone)

ONION
bromoxynil
clethodim
Dacthal (DCPA)
Fusilade DX (fluazifop)
glyphosate
Goal (oxyfluorifen) 		paraquat
Outlook (dimethenamid)
Poast (sethoxydim)
Prefar (bensulide)
Prowl H2O (pendimethalin)
trifluralin

RYE
Aim (carfentrazone)
bromoxynil
glyphosate 		MCPA
Peak (prosulfuron)
2,4-D

SORGHUM
Aim (carfentrazone)
atrazine
Basagran (bentazon)
bromoxynil
dicamba
G-Max Lite (atra&dimethenmd)
Intrro (acetochlor)
s/metolachlor (metolachlor)
Micro-Tech (alachlor)
Outlook (dimethenamid) 		paraquat
Paramount (quinclorac)
Peak (prosulfuron)
Permit (halosulfuron)
Priority (carfentrzn&halosulfrn)
Prowl H2O (pendimethalin)
Sequence (glyt & metolachlor)
Starane (fluroxypyr)
Yukon (dicamba&halosulfuron)
2,4-D

TRITICALE
Achieve (tralkoxydim)
Agility (dic&thif&trib&metsulfrn)
Aim (carfentrazone)
Ally Extra (met&thifen&tribenrn)
bromoxynil
dicamba
DoubleUp B+G(brmxynl&2,4-D)
ET (pyraflufen)
Far-Go (triallate) 		Finesse (chlor & metsulfuron)
Glean (chlorsufuron)
metsulfuron
Peak (prosulfuron)
Rhomene (MCPA)
Starane (fluroxypyr)
thifensulfuron & tribenuron
tribenuron
2,4-D

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W-253, January 2008