2008 North Dakota Weed Control Guide

W-253, January 2008
R. K. Zollinger, NDSU Extension Weed Specialist

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SOYBEAN

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 anytime 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 =     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. Commercial mixtures available. A4-6 X1
Paraquat RUP	2 to 4 pt 2SL 1.3 to 2.7 pt 3SL (0.5 to 1 lb)			Non-residual, contact herbicides; thorough coverage essential. Apply with a 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)	Broadleaf weeds including wild buckwheat and vol. RR canola.		Improves broadleaf weed control including wild buckwheat when tank-mixed with glyphosate. Add NIS at 0.25 to 0.5% v/v. D15 D18 S1 X1
2,4-D	1 to 2 pt 4EC/SL (0.5 to 1 lb)	Preplant burndown of emerged annual broadleaf weeds. Days before seeding: 1 pt amine = 15 days. 1 pt ester = 7 days. 2 pt amine or ester = 30 days.		A preplant application for use only in reduced tillage. Soybean injury may occur. Seed at least 1.5 to 2 inches deep to ensure seed is separated from the herbicide. Refer to pages 108-109 for commercial mixtures. D2 X1
Prowl Prowl H2O (pendimethalin)	2.4 to 3.6 pt EC 2.1 to 3 pt ACS (1 to 1.5 lb)	Annual grass and some broadleaf weeds.	PPI. Fall or Spring.	Adjust rate according to soil type. Do not apply Sonalan or trifluralin PRE. No wild mustard and poor wild oat control. Green foxtail has become resistant to dinitroaniline (DNA) herbicides in North Dakota. Refer to pages 108-109 for commercial mixtures. A1-3 D13 S7 X1 Y18 Y24
Sonalan Sonalan 10G (ethalfluralin)	1.5 to 3 pt 5.5 to 11.5 10G (0.55 to 1.15 lb)
Trifluralin	1 to 2 pt (0.5 to 1 lb)
Sencor (metribuzin)	Soil pH >7.5 = 0.25 lb DF Soil pH <7.5 = 0.33 to 0.5 lb DF	Broadleaf weeds including wild mustard.	PPI.	Sencor may injure certain soybean varieties. Refer to pages 108-109 for commercial mixtures. D12 S7 Y4 Y17 Y24
Metolachlor s-Metolachlor	1 to 2 pt (0.95 to 1.9 lb)	Grass and some broadleaf weeds.	PPI or PRE.	s-Metolachlor may give greater weed control than Metolachlor at equal product rates. Poor wild oat control and wild mustard control. PPI gives more consistent control than PRE. PRE requires precipitation for herbicide activation. Adjust rate according to soil type and OM. Outlook gives greater nightshade control. Refer to pages 108-109 for commercial mixtures. A1 C11 D8
Intrro (alachlor) RUP	2 to 3 qt (2 to 3 lb)
Outlook Propel (dimethenamid-P)	16 to 21 fl oz (0.75 to 1 lb)		PPI, PRE or EPOST.
Valor (flumioxazin)	2 to 3 oz WDG (1 to 1.5 oz)	Small-seeded broadleaf weeds including pigweed, nightshade, kochia lambsquarters, and B. wormwood.	EPP, Shallow PPI, and PRE.	Requires precipitation to activate herbicide. Refer to label or narrative for tank-mix options, application information, rate structure, and crop rotation restrictions. Refer to pages 108-109 for commercial mixtures. D6 D16 S3-5 S7 Y24 D6 D14 S3 S4-5 S7 X1 Y2 Y19 Y24
Spartan (sulfentrazone)	3 to 8 fl oz F (1.5 to 4 oz)
Python (flumetsulam)	0.8 to 1.33 oz DG or 5 to 3 A/pack (0.64 to 1.06 oz)	Python does not control ALS resistant kochia.		D10 S4 S7 Y2 Y13 Y24

SOYBEAN

Herbicide	Product/A (ai/A)	Weeds	When to Apply	Remarks and Paragraphs
POST Herbicides
Basagran (bentazon)	1 to 2 pt (0.5 to 1 lb)	Some broadleaf weeds. Suppression of biennial wormwood and Can. thistle.	POST. Soybean: Any stage. Broadleaf weeds: Small.	Contact, non-residual herbicide; thorough coverage required. Apply with oil additive at 1 qt/A. Two applications at a 7 to 10 day interval improves weed control. Apply first treatment at unifoliate to first trifoliate soybean. D4 E6 S4 S7 T2
Rezult (Co-pack of bentazon & sethoxydim)	1.6 + 1.6 pt (1 & 0.2 lb)	Grass and broadleaf weeds.	POST. Soybean: Emergence to 30 days PHI.	Apply with oil adjuvants at 1 to 2 pt/A. Refer to Basagran and Poast sections for additional information. Tank-mix with Raptor at 2 fl oz/A for improved weed control. D3-4 E6
Ultra Blazer (acifluorfen)	0.5 to 1.5 pt (0.125 to 0.375 lb)	Wild mustard, redroot pigweed, and volunteer flax.	POST. Soybean: 1 to 2 trifoliates. Weeds: 1 to 4 inches tall.	Contact, non-residual herbicide; thorough coverage required. Apply when temperature exceed 70 F. D5 S4
Cobra (lactofen)	6 to 12.5 fl oz (1.5 to 3.2 oz)	Small broadleaf weeds.	POST. Up to 45 days before harvest. Weeds: 2 to 6 inches.	Contact herbicide, thorough coverage required. Apply with oil adjuvant at 1 to 2 pt/A. Refer to narrative for environmental response, tank-mix options, and for white mold suppression. D5 S4
Flexstar (fomesafen + adjuvants)	0.75 to 1 pt (0.176 to 0.24 lb)	Broadleaf weeds including pigweed, cocklebur, Venice mallow, mustard, ragweed, smartweed, black nightshade, kochia including resistant. Poor hairy nightshade control.	POST. Soybean: Prior to flowering. Weeds: 2- to 4-leaf stage.	Contact herbicide requiring thorough coverage. Use at 1pt/A in ND east of I-29 and south of I-94 and at 1 pt/A in MN south of I-94. Use 0.75 pt/A in ND east of Hwy 281 and in MN south of US Hwy 2. Refer to label for crop rotation restrictions. Use MSO adjuvants at 1% v/v + AMS at 10 lb/100 gal water. Follow restrictions for each geographic region. To improve kochia control apply with oil adjuvant, at high water volume, and to kochia less than 2 inches tall. Sequential applications may be necessary. A7 D7 S3 S4-5 Y12 Y24
FirstRate (cloransulam)	0.3 oz WDG or 10 A/pack (0.25 oz)	Venice mallow, cocklebur, horseweed, ragweed, sunflower, and wild mustard.	POST. Soybean: Up to 50% of plants flowering. Weeds: Up to 10 inches tall.	Apply with NIS at 0.125% v/v or oil adjuvant at 1.2% v/v alone or with 28% UAN at 2.5% v/v. Refer to label or narrative or label for weed size, tank-mix options and crop rotation restrictions. Refer to pages 108-109 for commercial mixtures. D6 X1 Y2 Y24
Thifensulfuron	1/12 oz DF 1/8 oz SP (0.062 oz)	Wild mustard, pigweed, and lambsquarters. No ALS-resistant kochia control.	POST. Soybean: Fully expanded 1st trifoliate leaf until 60 days PHI.	Apply with a NIS at 0.25% v/v or oil additive plus 28% UAN or AMS. Refer to label for tank-mix options. D15 S1 S5 X1
Pursuit (imazethapyr)	3 fl oz (0.75 oz)	Annual broadleaf weeds including nightshade, kochia, pigweed, and mustard.	POST. Soybean: Fully expanded first trifoliate leaf but prior to flowering. Weeds: Small and actively growing.	Apply with NIS or oil adjuvant and liquid fertilizer. MSO-type oil adjuvants have given greater enhancement than petroleum oil or NIS. Refer to narrative for application information, weed size, crop rotation restrictions, and other use information. Raptor has less soil residual carryover than Pursuit. Poor common lambsquarters (>2 inches), ragweed, wild buckwheat and biennial wormwood control. No control of ALS-resistant kochia. A7 D9 D11 S4 X1 Y2 Y6 Y24
Raptor (imazamox)	4 to 5 fl oz (0.5 to 0.625 oz)	Annual grass and broadleaf weeds.

SOYBEAN

Herbicide	Product/A (ai/A)	Weeds	When to Apply	Remarks and Paragraphs
Assure II Targa (quizalofop)	4 to 10 fl oz (0.44 to 1.1 oz)	Annual grasses and quackgrass.	Soybean: Prior to pod set. Grass weeds: Refer to table below.	Apply with oil adjuvant at 1% v/v but not less than 1 pt/A. Oil adjuvant at more than 1 qt/A is not needed. See Select Max label for detailed adjuvant recommendations. Grass control is reduced by tank mixtures or close interval application of POST broadleaf control herbicides. Antagonism generally can be avoided by applying a higher rate of grass herbicide or apply the grass control herbicide 1 or more days before or 5 to 7 days after the broadleaf control herbicide. Do not cultivate prior to 5 days before or 7 days after application. Refer to label for tank-mix options. Refer to page 126 for control of volunteer corn. D3 X1
Fusilade DX (fluazifop-P)	5 to 12 fl oz (1.25 to 3 oz)
Fusion (fluazifop-P & fenoxaprop)	4 to 12 fl oz (1 to 3 oz & 0.32 to 0.96 oz)
Poast (sethoxydim)	0.5 to 1.5 pt (0.09 to 0.28 oz)	Annual grasses.	Soybean: All stages. Grass weeds: Refer to table below.
Clethodim	4 to 16 fl oz (1 to 4 oz)	Annual grasses and quackgrass.
Select Max (clethodim)	9 to 32 fl oz (1.125 to 4 oz)

GRASS CONTROL WITH POST HERBICIDES

Herbicide	Weed size (inches)	Rate (fl oz/A)	Herbicide	Weed size (inches)	Rate (fl oz/A)	Herbicide	Grass size (inches)	Rate (fl oz/A)
Green and yellow foxtail			Wild-proso millet			Volunteer corn
Assure II/Targa Fusilade DX Fusion Poast Clethodim Select Max	2 to 4 2 to 4 2 to 4 1 to 8 2 to 8 2 to 6 6 to 8	8 10 to 12 8 1 pt 4 to 6 9 12	Assure II/Targa Fusilade DX Fusion Poast Clethodim Select Max	2 to 6 4 to 8 4 to 8 4 to 10 1 to 10 2 to 6 6 to 8	8 6 6 0.5 pt 4 to 6 9 12	Assure II/Targa Fusilade DX Fusion Poast Clethodim	6 to 30 12 to 24 12 to 24 1 to 20 4 to 12 12 to 24	4 to 8 4 to 8 6 1 pt 4 6
Wild oat, Vol. small grains, Sandbur			Quackgrass			Select Max	1 to 12 12 to 24 24 to 36	6 9 12
Assure II/Targa Fusilade DX Fusion Poast Clethodim Select Max	2 to 6 2 to 6 2 to 6 1 to 4 2 to 6 2 to 6 6 to 8	8 8 8 1 pt 6 9 12	Assure II/Targa Fusilade DX Fusion Poast Clethodim Select Max	6 to 10 6 to 10 6 to 10 6 to 8 4 to 12 4 to 12	10 fb 8 12 fb 8 12 fb 12 1.5 fb 1 pt 8 fb 8 12 fb 12
						Refer to page 126 for control of volunteer corn.

Preharvest Application

Herbicide	Product/A (ai/A)	Weeds	When to Apply	Remarks and Paragraphs
Glyphosate	Up to 0.75 lb ae See Remarks.	Preharvest weed control.	Prior to harvest. Apply after pods have set and lost all green color. Allow a 7 day PHI.	Apply with AMS fertilizer. Refer to label for adjuvant use. Do not apply on soybean grown for seed because reduced germination/vigor may occur. A4-6
Paraquat RUP	8 to 12 fl oz 2SL 5.6 to 8.4 fl oz 3SL (0.13 to 0.188 lb)	Desiccant.	Prior to harvest. Allow a 15 day PHI.	Apply with NIS at 0.125% v/v. Apply when at least 65% of seed pods are a mature brown color or when seed moisture is 30% or less. Q3

HERBICIDE RESISTANT SOYBEAN

ROUNDUP READY SOYBEAN

Herbicide	Product/A (ae/A)	Weeds	When to Apply	Remarks and Paragraphs
Glyphosate	Maximum single application = 1.5 lb ae Maximum in-crop = 2.25 lb ae See Remarks.	Annual and perennial grass and broadleaf weeds.	POST. Soybean: Emergence through R2 of full flowering. The R2 stage ends when a pod 3/16 inch long at one of the four uppermost nodes appears on the main stem along with a fully developed leaf (R3 stage). Allow a 14 day PHI.	Apply only to glyphosate-resistant soybean varieties. Maximum - Maximum - single appl. in-crop lb ae/gal lb ai/gal 1.5 ae 2.25 ae 3            4 =    64 fl oz 96 fl oz 4/4.17    5.4 = 48 fl oz 72 fl oz 4.5         5.5 = 44 fl oz 66 fl oz 5            6.1 = 40 fl oz 60 fl oz Apply with AMS fertilizer. Multiple applications may be necessary for weed flushes. Drift and off-site movement may cause injury or death to other plants and crops. Refer to label for weeds controlled, application information, adjuvant use, tank-mix options with residual herbicides and restrictions. Cannot plant harvested patented soybean seed. A4-6 A7 D17 S4 X1

Refer to page 126 for control of volunteer Roundup Ready corn and canola in Roundup Ready soybean.

ROUNDUP READY/STS (sulfonylurea-tolerant) SOYBEAN

Herbicide	Product/A (lb ai/A)	Weeds	When to Apply	Remarks and Paragraphs
Refer to Roundup Ready soybean above for use of glyphosate in RUR/STS soybean.
Thifensulfuron	0.33 oz DF 0.5 oz SG (0.25 oz)	Annual broadleaf weeds including, wild buckwheat, lambsquarters, mustard species, and volunteer RR canola.	POST. RUR/STS soybean: 1st fully expanded trifoliate to 60 days PHI.	Apply only to RUR/STS soybean varieties. Apply with glyphosate at 0.38 to 1.125 lb ae/A. Apply with NIS at 0.125 to 0.25% v/v to non-loaded glyphosate. Refer to label for adjuvant use. Apply with AMS at 4.25 to 8 lb/100 gal water. Refer to label for weeds controlled, application information, and crop rotation restrictions. Refer to page 126. D15 D17-18 X1

WEED MANAGEMENT IN ROUNDUP READY SOYBEAN
NDSU recommends using herbicides with different modes of action and different weed control management practices in Roundup Ready soybean production to delay development of glyphosate resistant weeds. See pages 106-107 for more information on weed resistance.
COMMANDMENT #1 - Control weeds BEFORE 2 to 4 inches tall to avoid yield loss.
Remove weeds early especially when grass weed populations are high. Data from the mid-west may indicate that soybean yield may not be reduced by weeds up to 6 inches tall. However, data from the northern Plains show that, especially under dry conditions, soybean yield loss may occur if weeds greater than 4 inches are allowed to compete with soybean.
Glyphosate at 1.5 oz ae/A controls foxtail, at 2.25 oz ae/A controls volunteer small grain, and at 3 oz ae/A controls wild oat and downy brome. Use higher rates on broadleaf weeds, larger weeds, tolerant weeds, or if weeds are under environmental stress. See glyphosate section on page 68 for more information about increasing weed control from glyphosate.

Three Systems of Weed Control in RR Soybean
1. PRE followed by glyphosate POST: All PRE herbicides require rain for activation.
Page 22 lists many registered PRE soybean herbicides that can be used in herbicide resistant soybean. PRE herbicides at 2/3 the labeled rate may give 60 to 90% control of some grass and broadleaf weeds, will reduce weed infestations emerging with soybean, will allow more flexibility in application of POST herbicides, and will help protect yield from early season weed competition.

2. Glyphosate + POST broadleaf herbicide (different mode of action):
Several herbicides listed in the following table will improve control of weeds not controlled by glyphosate. Glyphosate has no soil residual. Glyphosate has no soil residual and will not control weeds emerging after application. Glyphosate may not control some weed species or biotypes. Many POST herbicides listed will give residual weed control. Most herbicide companies have marketing programs in RR soybean. Follow label directions for tank-mix and application information.

3. Glyphosate (EPOST = 2 to 4 inch tall weeds) followed by glyphosate (POST = 14 to 21 days later):
This program will increase the risk of weed resistance unless other strategies are used in rotational crops - see Herbicide Resistant Weed Section, page 106-107.
The following table shows herbicides to apply in tank-mix or sequentially with glyphosate in RR soybean for control of weeds not controlled by glyphosate. Weed ratings are control without glyphosate. Refer to label for tank-mix and specific application information. Residual weed control listed in the table refers to control of subsequent flushes of weeds after herbicide application.

Herbicides to apply in tank-mix or sequentially with glyphosate in RR soybean for control of weeds not controlled by glyphosate.

Rate/A

Cost/A

W. buck wheat

Vol. RR canola

Horse weed

Kochia

Lambs quarters

Comon mallow

Night shade

Prickly lettuce

Common ragweed

Smart weed

Water hemp

Preplant or PRE herbicides - no residual weed control

Weed Control Ratings3

2,4-D ester

Plant >7 d

0.5 - 1 pt

$1.00 - 2.00

P

P-G

E

P

E

P

N

E

E

F

G

Aim

0.5 - 1 fl oz

$2.80 - 5.60

P

N-P

N

F-E

F-G

-

N

F

N

N

E

Thifensulfuron

See label

$4.50 - 9.00

E

G-E

N

E4

E

G-E

N

E4

G

E4

E4

Rage D-tech

Plant >14 d

8 - 24 fl oz

$ -

E

G-E

N

E4

E

G-E

N

E4

G

E4

E4

Preplant or PRE herbicides - with residual weed control - See Combination herbicides for soybean.

Prowl, Sonalan, Treflan2 - PPI

See label

$3.00 - 8.00

N

N

N

P

F-E

N

N

N

N

P

F-E

Python2

0.8 - 1 oz DG

$8.00 - 10.00

F-G

E

E

E4

E

-

E

-

P

G-E

E4

Spartan2

3 - 4.5 fl oz

10.00 - 15.00

P-F

P

E

E

E

-

F-E

P

P

E

E

Valor

2 - 2.5 oz WDG

9.40 - 11.75

P-F

P

E

E

E

E

E

E

P

F

E

POST herbicides - See Combination herbicides for soybean.

FirstRate2

<50% flowr

0.3 oz WDG

$8.70

P-F

P-G

E4

P4

P

-

N

-

E

E

N

Flexstar2

< Flowering

0.5 - 0.75 pt

$7.00 - 10.00

P

E

N

G-E

P-F

G-E

F-E

-

G-E

G-E

E

Harmony GT

60 day PHI

1/12 oz XP

$1.20

P

P-F

N

F-G4

G

N

N

P4

N

G-E

N

Pursuit2

< Flowering

2 - 3 fl oz

$8.15 - 12.20

P

E

N

E4

P-F

P

E

E4

P

G

N

Raptor2

< Flowering

2 - 3 fl oz

8.15 - 12.20

P

E

N

E4

F

P

E

G4

P

G-E

N

1See page 126 for size of volunteer canola and herbicide rates. 2May carry over more than one cropping season. Follow labeled crop rotation restrictions. See pages 110-116. 3E = Excellent (90-99%), G = Good (80-90%), F = Fair (65-80%), P = Poor (40-65%), N = None. 4Except where resistant populations have developed. 5Registration Pending

Combination Herbicides for Soybean:

Trade Name	Manufacturer	Applied at (Prod/A)...	Cost/A	Gives the equivalent product rates of:
Authority Assist	FMC	-	Pending	- fl oz Spartan + - fl oz Pursuit
Authority First	FMC	2.4 oz 3.2 oz	$9.60 $12.80	3 fl oz Spartan + 0.2 oz FirstRate 4 fl oz Spartan + 0.3 oz FirstRate
Authority MTZ	FMC	10 oz 12 oz	$10.30 $12.40	3.6 fl oz Spartan + 3.6 oz Sencor 4.33 fl oz Spartan + 4.33 oz Sencor
Boundary	Syngenta	1.2 pt	$11.70	0.83 pt Dual Magnum + 4 oz Sencor
Domain	Bayer	9 oz	$7.00	4.33 fl oz Define + 4.33 oz Sencor
Extreme	BASF	1.5 pt 2.25 pt	$6.75 $9.00	2 fl oz Pursuit + 12 fl oz glyphosate-ipa (3 lb ae/gal) 3 fl oz Pursuit + 18 fl oz glyphosate-ipa (3 lb ae/gal)
Gangster (co-pack)	Valent	1.8 oz	$12.50	1.5 oz Valor + 0.3 oz FirstRate
Pursuit Plus	BASF	1.8 pt 20 fl oz	$12.40 $8.60	1.28 pt Prowl H2O + 2.9 fl oz Pursuit 0.88 pt Prowl H2O + 2 fl oz Pursuit
Rage D-tech*	FMC	8 fl oz 16 fl oz	$3.35 $6.65	½ fl oz Aim + 0.5 pt 2,4-D ester - apply only EPP. 1 fl oz Aim + 1 pt 2,4-D ester - apply only EPP.
Sequence	Syngenta	1.5 pt	$10.35	18 fl oz glyphosate-ipa + 0.6 pt Dual II Magnum
Sonic	Dow	3.2 oz	$12.80	See Authority First

* Plant no earlier than 14 days after application

DRY EDIBLE BEAN

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 anytime 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 = 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. Commercial mixtures available. A4-6 X1
Paraquat RUP	2 to 4 pt 2SL 1.3 to 2.7 pt 3SL (0.5 to 1 lb)			Non-residual, contact, herbicides; thorough plant coverage required. Apply with a NIS at 0.25% v/v to small weeds. B4 S1 S3-4 Q3 X1
Aim (carfentrazone)	1/2 to 1 fl oz EW (0.128 to 0.256 oz)	Small broadleaf weeds.
Eptam (EPTC)	3.5 to 4.5 pt 15 to 20 lb G (3 to 4 lb)	Grass and some broadleaf weeds.	PPI.	PPI immediately after application. Consult label for rate range for specific tank mix. A1-3 E2 S4
Prowl Prowl H2O (pendimethalin)	2.4 to 3.6 pt 3.3EC 2.1 to 3 pt 3.8ACS (1 to 1.5 lb)		PPI. Fall or Spring.	Apply when soil temperature is <45 F for fall applications. Adjust rate according to soil type. Refer to label for rotational restrictions and tank-mix options. A1 D13 S7 Y20 Y25
Trifluralin	1 to 2 pt EC 5 to 10 lb 10G (0.5 to 1 lb)			PPI within 24 hours after application. Refer to label for tank-mixtures and crop rotational restrictions. A1 A3 D13 S7 X1 Y1 Y18 Y24
Sonalan (ethalfluralin)	1.5 to 4.5 pt EC (0.55 to 1.69 lb) 5.5 to 11.5 lb 10G (0.55 to 1.15 lb)			No wild mustard and poor wild oat control. Adjust rate according to soil type. Use highest rate allowed for nightshade control. Use EC formulation in spring and 10G formulation in fall. Refer to narrative for rotational restrictions. A1 A3 D13 S7 Y18 Y24 X1
Metolachlor s-Metolachlor	1 to 2 pt (0.95 to 1.9 lb)	Grass and some broadleaf weeds.	Spring: PPI or PRE.	s-metolachlor may give greater weed control than metolachlor at equal product rates. Poor on wild mustard and wild oat. Adjust rate according to soil type and OM. PPI improves consistency of weed control. Outlook provides greater nightshade control. Refer to pages 108-109 for commercial mixtures. A1 C11 E3 S4
Outlook Propel (dimethenamid-P)	16 to 21 fl oz (0.75 to 1 lb)		PPI, PRE, or EPOST.
Intrro (alachlor) RUP	4 to 6 pt (2 to 3 lb)		PPI.
Permit (halosulfuron)	½ to 2/3 oz DF (0.38 to 0.5 oz)	Cocklebur, Venice mallow, ragweed, nutsedge smartweed, sunflower, and nutsedge.	PPI or PRE.	Use lower rate on coarse-textures soils. Refer to label for tank-mix options, crop rotation restrictions, and other restrictions. C13 Y3 Y24
Pursuit Plus (imazethapyr & pendimethalin)	20 fl oz (0.5 oz & 0.42 lb)	Broadleaf weeds including pigweed, wild mustard, and nightshade. Pursuit Plus may control wild buckwheat. No control of ALS- resistant kochia.	PPI. Up to 1 week before planting.	May be tank-mixed with other labeled herbicides including Prowl H2O. A1 A7 D9 E4 G1 H1 S4-5 S7 X1 Y2 Y20 Y25
Pursuit (imazethapyr)	2 fl oz (0.5 oz)		Shallow PPI, PRE. POST. Drybean: After 1st trifoliate but prior to flowering.	User assumes all risk of crop injury. Reduced crop growth, quality, yield and/or delayed maturity may result. Do not apply prior to or during stress conditions (cold/wet). Allow a 60 day PHI. Refer to label for tank-mix options, application information, weed size, crop rotation restrictions, and other use information. A7 D9 E4 G1 H1 S4-5 X1 Y2 Y24
Raptor (imazamox)	4 fl oz (0.5 oz)	Annual grass and broadleaf weeds. No control of ALS- resistant kochia.	POST. Drybean: After 1st trifoliate but prior to flowering.	Apply with NIS or oil additive plus 28% UAN. Do not use oil adjuvant + 28% UAN during high temperature and humidity. Refer to label for use information. A7 D11 S4 X1 Y2 Y6 Y24

DRY EDIBLE BEAN

Herbicide	Product/A (ai/A)	Weeds	When to Apply	Remarks and Paragraphs
Basagran (bentazon)	1 to 2 pt (0.5 to 1 lb)	Some broadleaf weeds. Suppression of biennial wormwood and Canada thistle.	POST. Dry bean: After emergence. Broadleaf weeds: Small.	Contact herbicide; thorough spray coverage required. Apply with oil adjuvant at 1 qt/A. Two applications at a 7 to 10 day interval improves overall weed control. Apply the first treatment at unifoliate to first trifoliate dry bean. D4 E6 S4 S7 T2
Rezult (bentazon & sethoxydim)	1.6 + 1.6 pt (1 & 0.2 lb)	Grass and broadleaf weeds.	POST. Dry bean: 1st trifoliate to 30 days prior to harvest.	Add oil adjuvants at 1 to 2 pt/A. Tank-mix with Raptor at 2 fl oz/A for improved weed control. Refer to Basagran and Poast sections for use information. D3-4 E6 S7
Reflex (fomesafen)	0.75 pt (0.19 lb)	Annual broadleaf weeds including ragweed, kochia, and nightshade including ALS-resistant.	POST. Dry bean: 1st trifoliate to bloom. Weeds: 1 to 4 inches.	Apply with NIS at 0.125 to 0.25% v/v or oil adjuvant at 0.5 to 1% v/v. Allow a 30 day PHI. Oil adjuvant may increase risk of crop injury. Refer to label for weeds controlled, application information, risk of crop injury, and crop rotation restrictions. A7 E5 S3 S4-5 Y14 Y25
Assure II Targa (quizalofop)	8 to 10 fl oz (0.88 to 1.1 oz)	Annual grasses and quackgrass.	POST. Dry bean: Allow a 30 day PHI. Grass: Refer to soybean section on page 26.	Apply with oil adjuvant at 1% v/v but not less than 1 pt/A. Oil adjuvant at more than 1 qt/A is not needed. See Select Max label for detailed adjuvant recommendations. Refer to soybean section, label, or narrative for tank-mix options, possible grass antagonism with broadleaf herbicides, and avoiding reduced grass control. D3 X1
Poast (sethoxydim)	0.5 to 1.5 pt (0.1 to 0.3 lb)	Annual grasses.
Clethodim	4 to 8 fl oz (1 to 2 oz)	Annual grasses and quackgrass.
Select Max (clethodim)	9 to 32 fl oz (1.125 to 4 oz)
NDSU Micro-rate
Rezult + Raptor + Reflex + Clethodim + MSO adjuvant	0.5 to 0.6 & 0.5 to 0.6 pt + 1 fl oz + 2 to 4 fl oz + 2 fl oz (optional) + 1 to 1.5 pt/A	Grass and broadleaf weeds, including kochia, pigweed, and nightshade. May not control wild buckwheat.	POST. Weeds. Small. Must be less than 2 to 3 inches tall.	User assumes all risk of inadequate weed control when using this reduced-rate treatment. Must be applied with MSO or MSO + basic pH blend. Clethodim can be excluded if grass infestation is low. Refer to label for crop rotation restrictions and additional information. A5 A7 D3-4 D7-11 E4-6 S3-4 X1 Y2 Y12 Y24
Preharvest Application
Glyphosate	Up to 0.75 lb ae	Harvest aid/ Weed control.	After dry bean pods have turned yellow and leather texture. At hard dough bean seed stage and 30% or less seed moisture.	DO NOT USE AS CROP DESICCANT. Only certain formulations are labeled. Refer to label. Non-selective, non-residual, translocated, foliar herbicide. Allow a 7 day PHI. Do not apply to dry bean grown for seed because reduced germination/vigor may occur. A4-6 X1
Paraquat RUP	1.5 to 2 pt 2SL 1 to 1.3 pt 3SL (0.375 to 0.5 lb)	Desiccant.	At least 80% pods are yellow/brown.	Apply when no more than 40% (bush type beans) or 30% (vine type) of the leaves still green. Sequential applications may be needed. Contact herbicides; thorough coverage required. Valor can be applied with paraquat + MSO adjuvant for weed desiccation. Allow a 7 day PHI for paraquat. Allow a 3 day PHI for Aim. Allow a 5 day PHI for Valor. B5 Q3
Aim + MSO adjuvant (carfentrazone)	2 to 6 fl oz EC + 1 qt/A (0.53 to 1.5 oz)
Valor + MSO adjuvant (flumioxazin) Registration Pending	1.5 to 2 fl oz + 1 qt/A (0.77 to 1.53 oz)

FIELD PEA

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 anytime 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 = 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 Apply with AMS fertilizer. Refer to label for adjuvant use. A4-6 X1
Paraquat RUP	2 to 4 1.3 to 2.7 pt (0.5 to 1 lb)			Non-residual, contact herbicides; thorough coverage required. Apply with a NIS at 0.25% v/v to small weeds. B4 S1 S3-4 Q3 X1
Aim (carfentrazone)	1/2 to 1 fl oz EW (0.128 to 0.256 oz)	Small broadleaf weeds.
Far-Go (triallate)	1.25 qt EC 12.5 to 15 lb 10G (1.25 lb liquid or 1.25 to 1.5 lb 10G)	Wild oat.	PPI.	PPI immediately after application. A two pass incorporation is recommended. A1 A3 B14 F1
Prowl Prowl H2O (pendimethalin)	1.75 to 3.6 pt EC 1.5 to 3 pt ACS (0.72 to 1.5 lb)	Grass and some broadleaf weeds.	PPI. Fall or Spring.	Apply in fall when soil temperature is <45 F. Adjust rate according to soil type. No wild mustard and poor wild oat control. Some pea varieties may be injured. A1 D13 F1 S7 Y1 Y6 Y18 Y24
Trifluralin	1 to 1.5 pt 5 to 7.5 lb 10G (0.5 to 0.75 lb)
Sonalan (ethalfluralin)	1.5 to 2 pt 5.5 to 7.5 lb 10G (0.55 to 0.75 lb)
Metolachlor s-Metolachlor	1 to 2 pt (0.95 to 1.9 lb)		PPI or PRE. Fall or Spring.	s-Metolachlor may give greater weed control than metolachlor at equal product rates. Poor wild mustard and wild oat control. PPI improves consistency of weed control. Refer to pages 108-109 for commercial mixtures. A1 C11 E3 F1
Spartan (sulfentrazone)	2.25 to 8 fl oz F (1.125 to 4 oz)	Small-seeded broadleaf weeds including kochia, pigweed species, lambsquarters, and nightshade.	Fall, EPP, shallow PPI, and PRE.	Use lower rates on light soils with OM <3%. Requires precipitation to activate herbicide. Refer to label or narrative for rate structure, and crop rotation restrictions. Refer to pages 108-109 for commercial mixtures. D14 F1 J3 S1 S3 S4-5 S7 Y19 Y24
Pursuit Plus (imazethapyr & pendimethalin)	20 fl oz (0.5 oz & 0.42 lb)	Broadleaf weeds including redroot pigweed, mustard, and nightshade.	PPI. Up to 1 week before planting.	May be tank-mixed with other labeled herbicides. Addition Prowl/H2O may be added. May control wild buckwheat and ALS resistant kochia. A1 A7 D9 E4 G1 H1 S4-5 S7 X1 Y2 Y18 Y24
Pursuit (imazethapyr)	2 fl oz (0.5 oz)	No control of ALS- resistant kochia.	Shallow PPI, PRE.	User assumes all risk of crop injury. Reduced crop growth, quality, yield and/or delayed maturity may result. Do not apply prior to or during stress conditions (cold/wet). Allow a 60 day PHI. Refer to label for tank-mix options, application information, weed size, crop rotation restrictions, and other use information. A7 D9 E4 G1 H1 S4-5 X1 Y2 Y24
Metribuzin	0.33 to 0.5 lb DF (0.25 to 0.38 lb)	Suppression of lambsquarters, henbit, mustard, and chickweed.	PRE.	Only certain formulations are registered. Adjust rate according to soil type. Apply at 20 gpa. Refer to narrative for application and environment information, and special precautions that may affect weed control and crop safety. Allow a 50 day PHI. F1 F5 S7 Y17 Y24
	0.167 to 0.25 lb DF (0.125 to 0.19 lb)		POST.
Thistrol (MCPB)	2 to 6 pt (0.5 to 1.5 lb)	Broadleaf weeds: Small.	POST. Pea: 3 nodes until prior to flowering.	Slight, temporary injury may occur. Do not apply when temperature exceeds 90 F or when peas are stressed. Suppresses Canada thistle. F1 F3

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 anytime 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 = 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, systemic, foliar herbicide. Apply with AMS fertilizer. Refer to label for adjuvant use. A4-6 G1
Aim (carfentrazone)	1/2 to 1 fl oz EW (0.128 to 0.256 oz)	Small broadleaf weeds.		Non-residual, contact, herbicide; thorough coverage required. Apply with NIS at 0.25% v/v to small weeds. B4 S1 S3-4 Q3 X1
Far-Go (triallate) Far-Go EC	1.25 qt EC 12.5 to 15 lb 10G (1.25 lb liquid or 1.25 to 1.5 lb 10G)	Wild oat.	PPI.	PPI immediately after application. A two pass incorporation is recommended. A1 A3 B14 G1 H1-2 Y24
Prowl Prowl H2O (pendimethalin)	1.75 to 3.6pt 3.3EC 1.5 to 3 pt 3.8ASC (0.72 to 1.5 lb)	Grass and some broadleaf weeds.	PPI. Fall or Spring.	Adjust rate according to soil type. No wild mustard and poor wild oat control. Apply in fall when soil temperature is <45 F. D13 Y18 Y24
Trifluralin (trifluralin)	1 to 2 pt 5 to 10 lb 10G (0.5 to 1 lb)		PPI. Fall or Spring. See Remarks for use in Lentil.	Lentil: Tolerance is marginal and injury may occur under stress conditions. Apply at 1 to 1.5 pt or 5 to 7.5 lb 10G. Refer to label for additional information. A1 D13 G1 H1 H3 S7 X1 Y18 Y24
Sonalan (ethalfluralin)	1.5 to 2 pt 5.5 to 7.5 lb 10G (0.55 to 0.75 lb)			Lentil: Fall-apply Sonalan 10G just prior to snow cover into stubble on fields that have been direct-seeded with 30% or less soil disturbance for 2 to 3 years. Incorporate once using minimum soil disturbance with a rotary hoe or heavy harrow. Refer to label. A1 D13 G1 H1 H3 S7 X1 Y18 Y24
Metolachlor s-Metolachlor	1 to 2 pt (0.95 to 1.9 lb)		PPI or PRE.	S-Metolachlor may give greater weed control than metolachlor at equal product rates. PPI improves consistency of weed control. Refer to pages 108-109 for commercial mixtures. A1 C11 D8 G1
Outlook Propel (dimethenamid-P)	16 to 21 fl oz (0.75 to 1 lb)		Shallow PPI, PRE, or EPOST to third leaf lentil.	Poor wild mustard and wild oat control. Adjust rate according to soil type and OM. Shallow incorporation improves consistency of weed control. Refer to label for tank-mix products. A1 C11 D8 E3 H1 S4
Pursuit Plus (imazethapyr & pendimethalin)	20 fl oz (0.5 oz & 0.42 lb)	Broadleaf weeds including redroot pigweed, mustard, and nightshade.	PPI. Up to 1 week before planting.	May be tank-mixed with other labeled herbicides. Addition Prowl/H2O may be added. My control wild buckwheat and ALS resistant kochia. A1 A7 D9 D13 E4 G1 H1 S4-5 S7 X1 Y2 Y18 Y24
Pursuit (imazethapyr)	2 fl oz (0.5 oz)	No control of ALS- resistant kochia.	Shallow PPI, PRE.	User assumes all risk of crop injury. Reduced crop growth, quality, yield and/or delayed maturity may result. Do not apply prior to or during stress conditions (cold/wet). Allow a 60 day PHI. Refer to label for tank-mix options, application information, weed size, crop rotation restrictions, and other use information. A7 D9 E4 E6 G1 H1 S4-5 X1 Y2 Y24
Spartan (sulfentrazone) Chickpea Only	2.25 to 8 fl oz F (1.125 to 4 oz)	Small-seeded broadleaf weeds including kochia, pigweed species, lambsquarters, nightshade, and b. wormwood.	Fall, EPP, shallow PPI, and PRE.	Do not apply to lentil. Use lower rates on light soils with OM <3%. Do not use on sand soil with < 1% OM. Requires precipitation to activate herbicide. Refer to label or narrative for tank-mix options, application information, rate structure, and crop rotation restrictions. D14 F1 J3 S1 S3-5 S7 Y19 Y25