Weed Guide - Michigan Farm Bureau

2016
Weed Control & Identification Guide
A SPECIAL SUPPLEMENT TO
MICHIGAN FARM NEWS
Investing in YOUR Future
Since 2000, the Corn Marketing Program of Michigan has invested more than
$5 million in research to enhance the economic position of Michigan’s growers.
Today, this work is more important than ever as we face low corn prices and
tough economic times.
We’re leading the way - investing in cutting-edge research to improve efficiency in corn
production, find new uses for corn, expand markets and stimulate demand for
corn and corn-based products.
2016 Research Projects
• BeyondCropScouting:IntegratingRemoteSensingImagerywithCrop
ModelingtoImproveNitrogenManagement
• Integrating4RNutrientManagementandSoilHealthtoOptimize
MichiganCornProduction
• ReexaminingP&KRecommendationsAcrossCriticalMichiganWatersheds
• CenterforExcellenceontheRoad–Take2
• CharacterizationofRhizoctoniaSeedlingandRootRotDiseaseof
CornandRotationImplications
• 2016ThumbAgResearchandEducation(TARE)Proposal
• UsingCoverCropswithWheattoImproveRotationProfitability
• HowCompetitiveareInterseededCoverCropsinCorn?
• Attainingthe300BushelYieldGoalonHighProductiveSoils
ThroughClimateTolerantHybrids,IncreasedPopulation
DensityandNitrogenManagement
• MichiganGenomestoFields:ACollaborationwiththeNCGA
Genomes2fieldsGXEProject
• MichiganCornStoverHarvestProject
• StrategicBusinessandMarketingPlanDevelopment
www.micorn.org
CONTROL YOUR WEEDS
BEFORE THEY CONTROL YOU
3 TIPS TO HELP YOU PREVENT HERBICIDE RESISTANCE
Herbicide resistance is a growing problem that can impact your bottom line.
Follow these guidelines to manage weeds threatening your soybean crop and
minimize the risk of herbicide-resistant weeds appearing on your farm:
1
Target weeds. Know the weeds in your fields and get them while they’re little. Tackle
weeds before they reach 3 to 6 inches in height to prevent them from becoming a
serious threat to your soybean crop. Target those weeds with an appropriate herbicide
program that includes more than one mode of action.
2
Don’t cut corners. Apply the labeled rate. Herbicides are most effective when applied
at their recommended rate. Do it right the first time to avoid the expense of a follow-up
herbicide application and reduce the chance of developing herbicide-resistant weeds.
3
Document herbicide resistance. Herbicide-resistant weeds are a serious threat to
your crops. Know what resistance has been documented on your farm and surrounding
farms to better prepare next year’s herbicide program. Plan to use multiple modes of
action when applying herbicides to prevent widespread resistance.
Michigan Soybean
Promoon Commiee
The Soybean Checkoff
www.michigansoybean.org
©2016 United Soybean Board.
WEED CONTROL IN CORN
get 12% more
yield WITH
hybriforce-3400.
ON 100 ACRES, WHAT DOES 12% LOOK LIKE?
6+ EXTRA
SEMI-TRAILER LOADS OF
HAYLAGE PER YEAR*
60 EXTRA
DRY TONS
PER YEAR*
With real-world numbers like that, you can see why
we’re excited to get HybriForce-3400 into your field!
Contact your local Dairyland Seed District Sales Manager for more info:
EASTERN MI
Tim Asmondy
989.963.9025
WEST/CENTRAL MI
Bill Martin
989.225.6626
www.dairylandseed.com // 800.236.0163
SOUTHEAST MI
Grant Reiff
574.870.8226
SOUTHWEST MI
Kevin Chase
269.655.5448
*Assumes an average yield of 5 dry tons/a, a 12% yield advantage with HybriForce-3400, haylage harvested at 55% moisture and 20 wet
tons per semi-trailer load. ©2016 Dairyland Seed Co., Inc. All rights reserved. ®Dairyland Seed and the Dairyland Seed logo are trademarks
of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Dairyland Seed is a seed affiliate of Dow AgroSciences.
Survey to help soybean farmers ID, overcome yield gaps
BY MIKE STATON, MSUE
Soybean yield increases in Michigan
and across the North Central United
States have not kept pace with crops
such as corn, wheat and sugar beets.
Producers, researchers and agribusiness agronomists are aware of
this situation. However, the specific
yield-limiting factors responsible for
the creating the yield gaps (difference between attainable and actual
yields) are not fully understood. The
most common approach to identifying
yield-limiting factors has been through
the use of well-designed on-farm and
small plot research projects.
While the information collected
from these projects has increased our
knowledge of some of the yield-limiting
factors, it has not identified all of them
or provided enough information regarding soil and weather effects to develop
reliable recommendations for overcoming them and narrowing yield gaps.
An alternative or complementary
approach for identifying soybean yieldlimiting factors has been successfully
implemented in Nebraska. The project
collected information about yields,
crop inputs and management practices
for specific fields from producers across
the state. The researchers were able to
obtain this information from 516 fields
between 2010 and 2012.
The large amount of information
gathered from representative fields
enabled the researchers to identify
individual crop inputs and management practices that significantly affect
soybean yields.
The North Central Soybean Research
Program has provided funding to expand the project in states throughout
the North Central region.
This means Michigan soybean
producers will have the opportunity to
supply yield and management information about their fields that will be
used to generate specific recommendations for achieving higher soybean
yields in the future.
The project also includes a benchmarking aspect enabling participating
producers to confidentially compare
their soybean yields and management
practices to those of other producers
across Michigan and identify specific
opportunities for fine-tuning their
management practices to close the
yield gap on their farms.
How to participate
FARMCO DISTRIBUTING INC
13619 S. DEWITT ROAD, LANSING, MI 48906
PHONE: 517-669-8391 FAX: 517-669-6405
www.farmco.com
Michigan State University Extension
will need to collect field-specific information about yields, crop inputs and
management practices from at least
200 soybean fields across the state
each year from 2014 to 2017.
Participation in the project is
voluntary and all information will
remain confidential. Producers who
want to participate in the project can
contact Mike Staton by phone at 269673-0370 ext. 2562 or by email at
[email protected].
He will provide interested farmers
with some brief instructions and the
survey form. The instructions and survey
form are also available online at MSU’s
Field Crops Team Soybeans webpage.
NAVIGATOR
Industry Leader
The obvious choice
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ō2SW'\QDPLF)OXLGĠXLGV\VWHPō'LDSKUDJPRUFHQWULIXJDOSXPSV
The Sprayer
The Sprayer
Quality Design
Reliability - Efficiency - Performance
CHESANING
CARD BROTHER'S EQUIPMENT, INC.
989-845-7370
JONESVILLE
GODFREY BROS., INC.
517-849-9966
www.godfreybros.com
LENNON
ALDERMAN'S INC.
810-621-4201
www.aldermans.com
HARDI North America Inc. / 1500 West 76th St / Davenport, IA 52806 / Ph: (563) 386-1730 Fax: (563) 386-1280 / www.hardi-us.com
Keep Farming Transactions
on Track with Mediation
F
armers need equipment, seed, storage and other supplies to run
their farms. Lenders and creditors extend the funds. All stand to
gain.
More important, it helps them keep their business relationships
intact. That’s good for producers and their farms. That’s also good
for creditors and their bottom lines.
These daily transactions are built on trust. But when performance
on either side wavers, trust and prudent business practice are put
at risk. This is especially true when farmers and creditors become
adversaries instead of problem solvers.
The MAMP provides mediation to the farm community
statewide.
Fortunately, they can mediate. They can sit down together
informally and have a conversation about the issues. A neutral
mediator helps them share information and generate possible
solutions. But the parties make the decisions. When they find a
solution they both can accept, they sign an agreement ending their
dispute.
No hearings. No courts.
And no cost for qualified cases through the Michigan Agricultural
Mediation Program (MAMP). The MAMP is a federally funded
program of the U.S. Department of Agriculture. Launched in
Michigan in 1997, the program saves farmers and creditors time,
money and stress.
Contact the MAMP at:
616-774-0121
www.agmediation.org
Michigan Agricultural
Mediation Program
Farming on agreeable terms.
2016
Weed Control Guide for Field Crops
Weed management can be one of the toughest challenges that a grower faces from year to year. Having
the correct resources and information is important in making the right decisions on weed management
strategies. This booklet is a compilation of the key weed control tables from the 2016 Michigan State University Weed
Control Guide for Field Crops and is intended to be a tool in helping you design a weed management strategy. This
booklet covers herbicide options for weed control in the important agronomic crops in Michigan: corn, soybeans,
small grains, forages, dry edible beans and sugar beets. For further information on weed management in these and
other crops, consult the Michigan State University Extension Bulletin E-434 Weed Control Guide for Field Crops 2016
or individual herbicide labels.
TABLE OF CONTENTS
Weed response to soil-applied herbicides in corn ....................................................................................... 8
Weed response to postmergence herbicides in corn ................................................................................... 9
Herbicide premixes in corn ..................................................................................................................... 10-11
Weed and crop heights for postmergence herbicide applications in corn .............................................. 12
Weed response to soil-applied herbicides in soybean ............................................................................... 13
Weed response to postmergence herbicides in soybean ........................................................................... 14
WEED IDENTIFICATION GUIDE ................................................................................................................ 15-19
Herbicide premixes in soybeans ............................................................................................................. 20-21
Weed response to herbicides in small grains ............................................................................................. 22
Wheat growth stages according to the Feeke’s scale ................................................................................ 23
Weed response to herbicides in forage legumes ....................................................................................... 24
Weed response to herbicides in established forage grasses ..................................................................... 24
Multiple herbicide-resistant Palmer amaranth & waterhemp in Michigan ........................................ 25-28
Controlling horseweed (marestail).............................................................................................................. 29
The contents of this guide are reproduced from Michigan State University Extension Bullletin E-434 “2016 Weed Control Guide for Field Crops” by
Christy L. Sprague. This Extension bulletin contains comprehensive details on herbicide use in field crops and is available from the MSU Bulletin Office
or any county MSU Extension office. This publication contains pesticide recommendations based on current regulations. However, changes in pesticide regulations occur constantly. Some pesticides mentioned may no longer be legal. If you have any questions about the legality and/or registration
status for using pesticides, contact your county MSU Extension office.
Special thanks to our advertisers for making this supplement to Michigan Farm News possible. The acceptance of advertising does not endorse the use of any product.
Page 7
TABLE 1A – Weed Response to Soil-Applied Herbicides
Table 1A – Weed Response
Soil-Applied Herbicides in Corn*
intoCorn*
QUACKGRASS
YELLOW NUTSEDGE
JOHNSONGRASS (Rhizome)
WITCHGRASS
JOHNSONGRASS (seedling)
FALL PANICUM
F G
G F
P
P
P
P
P F
F P
P
P
F
P
N N
G F
15
27
2
1
P N
P G
F
E
F
E
G G
E E
F
F
N
F
P
E
P
E
P E
G N
E
P
E
N
E
N
E
N
E
N
E
N
F N
N P
N
N
F
N
P
N
N
N
15
15
5
3
2
2
14
14
15
1
2
1
3
3
1
1
2
1
N
N
F
N
F
G
G
P
P
P
P
E
G
E
F
G
G
F
P
P
N
G
E
F
G
G
F
F
G
E
P
G
P
G
G
G
P
P
E
P
F
F
G
G
F
N
N
F
N
P
P
F
F
N
P
P
G
P
G
F
G
F
F
N
N
F
F
G
F
G
F
F
P
P
E
P
E
E
G
G
F
E
E
G
G
P
G
N
P
E
E
E
F
G
P
F
N
P
E
E
E
F
G
P
G
N
P
E
E
E
F
G
P
G
N
P
E
E
E
G
G
P
G
N
P
E
E
E
P
G
P
F
N
P
E
E
E
P
G
P
F
N
P
E
F
F
P
G
P
P
N
P
F
N
N
P
N
N
P
P
N
N
N
N
F
N
N
P
N
N
N
F
P
F
N
N
P
N
P
F
P
P
N
P
N
P
N
P
F
N
N
N
N
N
P
N
N
N
E
E
E
G
E E
E E
E E
F G
E
E
E
G
E
E
E
G
E
E
E
F
E
E
E
F
F F
F N
F N
P P
P
N
N
P
F
F
F
P
F
F
F
P
N
N
N
P
E
E
E
E
E
E
E
F
P
N
F
P
N
E
E
E
E
E
E
E
F
F
P
F
P
N
E
E
E
E
E
E
E
F
P
N
F
P
N
E E E E E E
G E E E E E
G G G G G G
N N N N N N
G F G G G F
E E E E E E
Herbicides
E E E E E E
G G G G G G
E E E E E E
E
E
G
N
F
E
E
G
E
F
G
F
N
P
F
F
F
F
F
P
N
F
P
F
P
P
P
P
F
N
N
P
P
N
N
N
F
P
F
N
P
F
F
P
F
P
G
F
N
P
P
P
P
P
N
F
N
N
P
N
N
N
N
N
N
F
N
F
F
G
F
F
G
G
G
F
E
E
E
G
E
CANADA THISTLE
GREEN FOXTAIL
F
G
SANDBUR
GIANT FOXTAIL
P
F
YELLOW FOXTAIL
CRABGRASS
E G
E G
BARNYARDGRASS
G F
G E
WILD MUSTARD
E G
E F
VELVETLEAF
E G
E E
SMARTWEED
N
E
RAGWEED (GIANT)
E
E
RAGWEED (COMMON)
NIGHTSHADE (E. BLACK)
F F
P E
PIGWEED
T-R LAMBSQUARTERSa
1
2
JIMSONWEED
5
27
COCKLEBUR
LAMBSQUARTERS
ATRAZINE
BALANCE FLEXX
BREAKFREE NXT/HARNESS/
SURPASS NXT
CALLISTO
DUAL II MAGNUM/
CINCH/PARALLEL
OUTLOOK
PRINCEP
PROWL H2Ob (PRE only)
PYTHON/ACCOLADE
RESOLVE SG
SHARPEN
VALORc (7d EPP or more)
ZIDUA
PERENNIALS
CORN TOLERANCE**
Soil Applied
ANNUAL GRASSES
SITE OF ACTION
WEED CONTROL IN CORN
ANNUAL BROADLEAVES
Premixes
ACURON
5/15/27/27 1 G G E E E E E G E E E
ANTHEM
15/14
1 P F F F G E F N F F F
ANTHEM ATZ
15/14/5 1 P F G F E E G F F F E
BASIS BLEND
2/2
1 G F G G P E F P F F E
BICEP II LITE MAGNUM/
CINCH ATZ LITE
5/15
1 F F G P E G G F F F E
BICEP II MAGNUM/CINCH ATZ/
PARALLEL PLUS
5/15
1 F F E P E G E G G F E
BREAKFREE NXT LITE
DEGREE XTRA/FULTIME NXT/
KEYSTONE LA NXT
5/15
2 F F G F E G G F F F E
BREAKFREE NXT ATZ
HARNESS XTRA/KEYSTONE NXT
5/15
2 F F E F E G E G G F E
CORVUS
2/27
2 G E E E E E E G E E E
14/15
2 P F G G G E G F F F G
FIERCEc (7d EPP or more)
HORNET WDG/STANZA
2/4
3 G F E E G E E G G G E
INSTIGATE
2/27
1 G G E E E E F F E E E
LEXAR EZ/LUMAX EZ
5/27/15 1 F G E E E E E G E E E
TABLE
1AIId– Weed
2/4/15 Response
3 G F E E to
G Soil-Applied
E G F G G E
SURESTART
II/TRIPLEFLEX
d
14/15 in2 Corn*
G G G (continued)
G G E G F G G G
VERDICT
ZEMAX
27/15
1 P G E E E E F F E E G
(continued)
Herbicide Site of Action: The site of action key is located on pages 15-16.
Herbicide Effectiveness: P = Poor; F = Fair; G = Good; E = Excellent; N = None; – = Not enough information to rank
* The above ratings are a relative comparison of herbicide effectiveness. Weather conditions greatly influence the herbicide’s effectiveness, and weed
control may be better under favorable conditions or poorer under unfavorable conditions.
17
** Crop Tolerance: 1=Minimal risk of crop injury; 2=Crop injury can occur under certain conditions;
3=Severe crop injury can occur. Follow precautions
under Remarks and Limitations and on the label; 4=Risk of severe crop injury is high.
a Triazine-resistant common lambsquarters.
b DO NOT incorporate Prowl H O and corn should be planted a minimum of 1.5-inches deep.
2
c Valor or Fierce must be applied at least 7 day before planting, for use only in no-till corn.
d These herbicides are intended only for use only in planned preemergence followed by postemergence programs. Ratings only reflect early-season
weed control, not full-season control.
Page 8
TABLE 1B – Weed Response to Postemergence Herbicides
Table 1B – Weed Response in
to Postemergence
Herbicides in Corn*
Corn*
LAMBSQUARTERS
T-R LAMBSQUARTERSa
NIGHTSHADE (E. BLACK)
PIGWEED
RAGWEED (COMMON)
RAGWEED (GIANT)
SMARTWEED
VELVETLEAF
WILD MUSTARD
BARNYARDGRASS
GIANT FOXTAIL
GREEN FOXTAIL
YELLOW FOXTAIL
FALL PANICUM
WITCHGRASS
SANDBUR
CANADA THISTLE
QUACKGRASS
YELLOW NUTSEDGE
JOHNSONGRASS (seedling)
JOHNSONGRASS (Rhizome)
4
2
14
27
5
4
6
2
6
14
27
4
27
2
14
4
3
2
3
1
1
3
1
2
2
2
1
2
1
1
2
1
G
F
P
G
G
G
E
E
G
P
F
G
G
E
P
E
F
G
F
E
G
G
G
G
G
F
E
G
E
G
P
G
G
F
F
E
E
G
F
F
E
F
E
G
E
N
F
P
G
F
F
E
N
G
F
F
E
F
E
G
E
N
F
P
G
P
G
E
G
G
P
G
G
F
E
G
E
P
P
F
G
E
G
E
E
G
P
E
F
G
G
G
E
E
P
P
G
P
P
E
E
G
F
E
G
P
G
G
G
G
P
E
G
N
P
G
G
E
P
E
G
P
G
E
G
G
P
E
P
G
P
G
G
E
G
G
G
P
E
E
G
F
P
F
F
F
E
E
F
F
F
G
G
E
E
F
E
G
E
P
G
P
F
G
E
G
E
F
F
P
E
G
F
E
P
P
N N
E P
N N
G G
F P
N N
N N
P P
N N
N N
N Fb
N N
G F
N N
N N
N N
N
E
N
E
F
N
N
F
N
N
N
N
G
N
N
N
N
E
N
G
F
N
N
F
N
N
N
N
G
N
N
N
N
E
N
G
F
N
N
F
N
N
N
N
E
N
N
N
N
E
N
G
P
N
N
G
N
N
N
N
N
N
N
N
N
E
N
G
P
N
N
G
N
N
N
N
P
N
N
N
N
G
N
F
P
N
N
F
N
N
N
N
F
N
N
N
F
F
N
F
F
F
G
F
P
N
P
F
P
P
N
E
N
G
N
P
F
N
N
G
N
N
N
N
P
N
N
N
N
F
N
P
F
N
G
F
N
N
P
N
P
E
N
N
N
E
N
F
N
N
N
G
N
N
N
N
F
N
N
N
N
G
N
P
N
N
N
F
N
N
N
N
P
N
N
N
15/14
15/14/5
15/27
5/27
2/27
2/4
4/5
2/4
2/27
2/4
2/2
2/27
5/4
14/27
4/19
2/2
2/4
2
2
1
1
2
2
3
2
2
2
2
2
3
2
2
2
2
P
G
G
G
G
E
G
E
G
G
G
F
G
F
E
F
E
F
G
E
E
E
F
G
G
E
G
P
E
G
E
G
G
G
F
E
E
E
G
F
E
G
E
G
G
E
E
E
E
F
G
F
F
E
E
G
F
G
G
E
G
G
E
G
E
E
F
G
F
G
E
E
E
F
G
G
E
G
F
E
G
E
G
P
G
G
E
E
E
E
P
E
E
E
E
E
E
E
E
E
E
E
P
E
E
E
G
E
E
E
G
G
F
G
E
G
E
P
G
P
G
G
G
G
E
E
E
F
G
P
F
G
G
E
N
G
P
G
G
G
G
G
E
G
E
F
G
E
E
E
E
G
G
E
E
E
E
E
G
G
F
E
F
F
E
F
E
G
F
G
P
E
G
G
G
G
E
G
E
G
E
E
E
E
G
G
E
N N N
F P F
G G E
N Fb N
G G G
N N N
P N P
P P F
G F G
G F G
G F G
E Fb E
N N N
N Fb N
P P P
E F E
N N N
N
F
E
N
G
N
P
F
G
G
G
E
N
N
P
E
N
N
F
G
N
E
N
P
F
G
G
G
E
N
N
P
E
N
N
P
G
N
G
N
N
G
G
G
G
E
N
N
P
E
N
N
P
G
N
G
N
N
G
G
G
G
E
N
N
P
E
N
N
P
F
N
F
N
N
F
P
P
P
G
N
N
P
G
N
N
F
F
F
P
E
F
F
F
F
F
F
F
P
G
F
P
N
F
P
N
F
N
P
G
F
F
F
G
N
N
N
G
N
N
F
P
P
P
N
F
F
P
P
P
F
N
P
N
F
E
N
N
F
N
E
N
N
G
F
F
F
E
N
N
N
E
N
N
N
P
N
G
N
N
F
N
N
N
G
N
N
N
G
N
9
9/27
5/9/15
9/15/27
9/15
9/15
1
1
2
1
1
1
E
E
E
E
E
E
E
E
E
E
E
E
G
E
E
E
G
G
G
E
G
E
G
G
G
E
G
E
G
G
E
E
E
E
E
E
G
G
E
G
G
G
G
G
G
G
G
G
G
E
G
E
G
G
G
E
G
E
G
G
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
G
G
G
G
G
G
E
E
E
E
E
E
F
F
F
F
F
F
E
E
E
E
E
E
E
E
E
E
E
E
10
1
E G
F
F
G G
G G
E
F
F
G
G
F
F
F
P P
P
P
G
F
CRABGRASS
JIMSONWEED
2,4-D
ACCENT Q
AIM
ARMEZON/IMPACT
ATRAZINE
BANVEL/CLARITY
BASAGRAN/BROADLOOM
BEACON
BUCTRIL/MOXY
CADET
CALLISTO
DIFLEXX
LAUDIS
PERMIT
RESOURCE
STINGER
Premixes
ANTHEM
ANTHEM ATZ
ARMEZON PRO
CALLISTO XTRA
CAPRENO
HORNET WDG/STANZA
MARKSMAN
NORTHSTAR
REALM Q
REQUIRE Q
RESOLVE Q
REVULIN Q
SHOTGUN
SOLSTICE
STATUS
STEADFAST Q
YUKON
Glyphosate-Resistant Corn
GLYPHOSATE
CALLISTO GT
EXPERT
HALEX GT
SEQUENCE
WARRANT + GLYPHOSATE
TABLE 1B – Weed Response to Postemergence Herbicides
in Corn* (continued)
LibertyLink Corn
LIBERTY
E G
(continued)
Herbicide Site of Action: The site of action key is located on pages 15-16.
Herbicide Effectiveness: P = Poor; F = Fair; G = Good; E = Excellent; N = None; – =19
Not enough information to rank
* The above ratings are a relative comparison of herbicide effectiveness. Weather conditions greatly influence the herbicide’s effectiveness, and weed
control may be better under favorable conditions or poorer under unfavorable conditions.
** Crop Tolerance: 1=Minimal risk of crop injury; 2=Crop injury can occur under certain conditions; 3=Severe crop injury can occur. Follow precautions
under Remarks and Limitations and on the label; 4=Risk of severe crop injury is high.
a Triazine-resistant common lambsquarters.
b Large crabgrass only.
Page 9
WEED CONTROL IN CORN
Postemergence
COCKLEBUR
PERENNIALS
CORN TOLERANCE**
ANNUAL GRASSES
SITE OF ACTION
ANNUAL BROADLEAVES
TABLE
1C1C– –Herbicide
Premixes
in Corn
Table
Herbicide Premixes
in Corn
Soil Applied
WEED CONTROL IN CORN
TRADE NAME
TYPICAL
USE RATEa = EQUIVALENT RATES
COMPANY
FORMULATION
Acuron
Syngenta
3.44ZC
3 qt/A
Anthem
FMC
2.15SE
10 oz/A
Anthem ATZ
FMC
4.5SC
2.5 pt/A
Basis Blend
DuPont
30WG
1.25 oz/A
Bicep II Magnum
Syngenta
5.5F
2.1 qt/A
Bicep Lite II Magnum
Syngenta
6F
1.5 qt/A
Breakfree NXT ATZ
DuPont
5.6L
2.4 qt/A
Breakfree NXT Lite
DuPont
6L
2 qt/A
Cinch ATZ
DuPont
5.5F
2.1 qt/A
Cinch ATZ Lite
DuPont
6F
1.5 qt/A
Corvus
BAYER
2.63SC
5.6 oz/A
Monsanto
4L
3 qt/A
Valent
76WG
3 oz/A
Dow AgroSciences
4L
3 qt/A
Monsanto
5.6L
2.4 qt/A
Dow AgroSciences/FMC
68.5WG
3 oz/A
DuPont
45.8WG
6 oz/A
Keystone NXT
Dow AgroSciences
5.6L
2.4 qt/A
Keystone LA NXT
Dow AgroSciences
6L
2 qt/A
Degree Xtra
Fierceb
FulTime NXT
Harness Xtra 5.6L
Hornet WDG/Stanza
Instigate
TABLE 1CSyngenta
– Herbicide 3.7ZC
Premixes 3in
qt/ACorn (continued)
Lexar EZ
Lumax EZ
Soil Applied (continued)
Parallel Plus
TRADE NAME
Syngenta
3.67ZC
2.7 qt/A
MANA
COMPANY
5.5SL
FORMULATION
TYPICAL
2.3 qt/A
USE RATEa
4.16SE
2 pt/A
See footnotes at the end of the chart.
SureStart IIb
Dow AgroSciences
21
TripleFLEX
= 1.68 pt Dual II Magnum +
0.75 qt Atrazine +
5.76 oz Callisto +
0.045 lb ai bicyclopyrone
= 0.75 oz Cadet +
3 oz Zidua
= 1.25 qt atrazine 4L +
0.625 oz Cadet +
2.85 oz Zidua
= 1 oz Resolve SG +
0.25 oz Harmony SG
= 1.33 pt Dual II Magnum +
1.6 qt atrazine 4L
= 1.33 pt Dual II Magnum +
1 qt atrazine 4L
= 2.2 pt Breakfree NXT +
1.5 qt atrazine 4L
= 2.5 pt Breakfree NXT +
0.85 qt atrazine 4L
= 1.33 pt Cinch +
1.6 qt atrazine 4L
= 1.33 pt Cinch +
1 qt atrazine 4L
= 5.26 oz Balance Flexx +
0.033 lb ai thiencarbazone
= 2.3 pt Harness +
1 qt atrazine 4L
= 1.97 oz Valor
1.5 oz Zidua
= 2.3 pt Surpass +
1 qt atrazine 4L
= 2.2 pt Harness +
1.5 qt atrazine 4L
= 0.7 oz Python +
0.25 pt Stinger
= 5 oz Callisto
1 oz Resolve SG
= 2.2 pt Surpass NXT +
1.5 qt atrazine 4L
= 2.5 pt Suprass NXT +
0.85 qt atrazine 4L
5.34 oz Callisto +
1.36 pt Dual II Magnum +
1.3 qt atrazine 4L
= 5.38 oz Callisto +
1.76 pt Dual II Magnum +
0.63 qt atrazine 4L
= 1.6 pt Parallel +
= 1.6
EQUIVALENT
qt atrazine RATES
4L
IIb
Monsanto
4.16SE
2 pt/A
Verdictb
BASF
5.57EC
15 oz/A
Zemax
Syngenta
3.67ZC
2 qt/A
Page 10
2.15SE
8 oz/A
(Continued on next page)
= 1.07 pt Surpass NXT +
3 oz Stinger +
0.6 oz Python
= 1.07 pt Harness +
3 oz Stinger +
0.6 oz Python
= 3 oz Sharpen +
12.5 oz Outlook
= 5.36 oz Callisto +
1.75 pt Dual II Magnum
Postemergence
Anthem
FMC
= 2.45 oz Zidua +
0.6 oz Cadet
TripleFLEX IIb
Verdictb
Monsanto
4.16SE
2 pt/A
0.6 oz Python
= 1.07 pt Harness +
3 oz Stinger +
0.6 oz Python
= 3 oz Sharpen +
12.5 oz Outlook
= 5.36 oz Callisto +
1.75 pt Dual II Magnum
BASF
Table 1C
– Herbicide5.57EC
Premixes in15 oz/A
Corn (cont.)
Zemax
Syngenta
3.67ZC
2 qt/A
Anthem
FMC
2.15SE
8 oz/A
Anthem ATZ
FMC
4.5SC
1 qt/A
Armezon PRO
BASF
5.35EC
20 oz/A
Callisto GTc
Syngenta
4.18L
2 pt/A
Callisto Xtra
Syngenta
3.7SC
24 oz/A
Bayer
CropScience
Syngenta
3.45SC
3 oz/A
4.88SC
3 qt/A
Syngenta
4.38L
3.6 pt/A
Dow AgroSciences/FMC
68.5WG
3 oz/A
Marksman
BASF
3.2L
3.5 pt/A
Northstar
Syngenta
47.4WG
5 oz/A
Realm Q
DuPont
38.75WG
4 oz/A
Postemergence
Expertc
Halex GTc
Hornet WDG/Stanza
Require Q
TABLE 1CDuPont
– Herbicide59.19WG
Premixes 4in
oz/ACorn (continued)
Resolve Q
DuPont
22.4WG
1.25 oz/A
Postemergence
(continued)
Revulin
Q
DuPont
51.2WG
3.4 oz/A
COMPANY
FORMULATION
5.25L
TYPICAL
2.5 pt/A
USE RATEa
Loveland Products, Inc.
3.25F
1 qt/A
4L
3 oz/A
Sequencec
Syngenta
TRADE NAME
Shotgun
See footnotes at the end of the chart.
Solstice
Status
FMC
BASF
22
56WG
5 oz/A
Steadfast Q
DuPont
37.7WG
1.5 oz/A
Yukon
Gowan
67.5WG
4 oz/A
= 0.56 qt atrazine(Continued
4L +
on next page)
0.5 pt 2,4-D ester
= 0.71 oz Cadet +
2.8 oz Callisto
= 4 oz Clarity +
0.05 lb ai diflufenzopyr
= 0.7 oz Accent Q +
0.75 oz Resolve
= 4 oz Banvel +
0.66 oz Permit
a Rates recommended are for medium textured soils with 3% organic matter.
b These herbicides are intended for use only in planned preemergence followed by postemergence programs. Ratings only reflect early-season weed
control, not full-season control.
c Postemergence applications should only be made to glyphosate-resistant corn.
Page 11
WEED CONTROL IN CORN
Capreno
= 2.45 oz Zidua +
0.6 oz Cadet
= 2.28 oz Zidua +
0.5 oz Cadet +
1 qt atrazine 4L
= 0.71 oz Armezon +
17.5 oz Outlook
= 3 oz Callisto +
0.95 lb a.e. glyphosate
= 3 oz Callisto +
1.2 pt atrazine 4L
= 2.5 oz Laudis +
0.01 lb ai thiencarbazone-methyl
= 1.37 pt Dual II Magnum +
1.6 qt atrazine 4L +
0.75 lb a.e. glyphosate
= 1 pt Dual Magnum +
3 oz Callisto +
0.93 lb a.e. glyphosate
= 0.7 oz Python +
0.25 pt Stinger
= 1 pt Banvel +
1 qt atrazine 4L
= 0.5 oz Beacon +
4 oz Banvel
= 1.2 oz Resolve +
2.5 oz Callisto
= 1 oz Resolve +
3.8 oz Banvel
= 0.9 oz Resolve +
0.1 oz Harmony SG
= 0.9 oz Accent Q +
2.5 oz Callisto
= 0.98 pt Dual Magnum +
= EQUIVALENT RATES
0.7 lb a.e. glyphosate
TABLE 1H – Weed and Crop Heights for Postemergence
Table 1H – Weed andHerbicide
Crop Heights Applications
for Postemergence in
Herbicide
Corn*Applications in Corn*
HERBICIDEb
2,4-D amine/ester
Accent Q
Aim
Anthem
Anthem ATZ
Armezon/Impact
Armezon PRO
Atrazine 4L
Banvel/Clarity
Basagran/Broadloom
Beacon
Buctril, Moxy, others
Cadet
Callisto
Callisto Xtra
Capreno
DiFlexx
Hornet WDG/Stanza
Laudis
Marksman
Northstar
Permit
Realm Q
Require Q
Resolve Q
Resource
Revulin Q
Shotgun
Solstice
Steadfast Q
Status
Stinger
Yukon
4”
NR
NR
NR
NR
8”
5”
4”
4”
10”
4”
8”
NR
NR
10”
6”
3”
6”
6”
4”
6”
9”
4”
3”
3”
NR
4”
4”
NR
NR
6”
5 lf
14”
NR
3”
NR
2”
3”
6”
4”
4”
4”
10”
4”
4”
2”
NR
10”
6”
3”
NR
6”
4”
6”
4”
4”
3”
NR
NR
4”
4”
2”
4”
6”
5 lf
4”
MAXIMUM HEIGHTa
NR
4”
NR
NR
NR
3”
3”
1½”
NR
NR
NR
NR
NR
NR
NR
2”
NR
NR
2”
NR
3”
NR
2”
2”
2”
NR
4”
NR
NR
4”
NR
NR
NR
NR
4”
NR
NR
NR
3”
3”
1½”
NR
NR
NR
NR
NR
NR
NR
3”
NR
NR
3”
NR
3”
NR
2”
2”
2”
NR
4”
NR
NR
4”
NR
NR
NR
NR
4”
NR
NR
NR
3”
3”
NR
NR
NR
2”
NR
NR
NR
NR
5”
NR
NR
NR
NR
3”
NR
2”
2”
2”
NR
4”
NR
NR
4”
NR
NR
NR
NR
4”
NR
NR
NR
3”
NR
NR
NR
NR
2”
NR
NR
NR
NR
3”
NR
NR
NR
NR
NR
NR
2”
NR
NR
NR
6”
NR
NR
4”
NR
NR
NR
NR
3”
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
2”
NR
NR
2”
NR
4”
NR
NR
NR
NR
NR
3”
NR
NR
2”
NR
NR
NR
CORN
SANDBUR
WITCHGRASS
FALL PANICUM
YELLOW FOXTAIL
GREEN FOXTAIL
GIANT FOXTAIL
CRABGRASS
BARNYARDGRASS
WILD MUSTARD
VELVETLEAF
SMARTWEED
RAGWEED (GIANT)
RAGWEED (COMMON)
PIGWEED
NIGHTSHADE (E. BLACK)
T-R LAMBSQUARTERSc
ANNUAL GRASSES
MAXIMUM HEIGHTa
RATE/A
1 pt/0.5 pt
0.9 oz
0.5 oz
8 oz
1 qt
0.75 oz
20 oz
2 qt
1 pt
2 pt
0.76 oz
1 pt
0.9 oz
3 oz
24 oz
3 oz
8 oz
3 oz
3 oz
3.5 pt
5 oz
0.67 oz
4 oz
4 oz
1.25 oz
4 oz
3.4 oz
1 qt
3 oz
1.5 oz
5 oz
0.25 pt
4 oz
LAMBSQUARTERS
JIMSONWEED
COCKLEBUR
WEED CONTROL IN CORN
ANNUAL BROADLEAVES
MINIMUMa
HEIGHT
MAXIMUMa
HEIGHT
None
None
None
None
None
None
None
None
None
None
4”
None
None
None
None
1 collar
spike
None
None
None
4”(V2)
Spike
None
4”(V2)
None
2 lf
None
spike
None
None
4”(V2)
None
spike
8”
20” or 6 collars
8 collars
4 collars
4 collars
45 day PHI
30” or 8 collars
12”
8” or 5 lf
None
20”
d
48”d
30” or 8 collars
12”
5 collars
36” or 6 collars
20” or 6 collars
8 collars
8” or 5 lf
20” (V6)
canopy closure
20” or 6 collars
20” or 6 collars
20” or 6 collars
10 collars
20” or 6 collars
12” or 5 lf
30” or 8 collars
20” or 6 collars
36”(V10)
24”
36”
4”
NR
NR
2”
2”
6”
4”
6”
4”
2”
NR
6”
2”
5”
10”
6”
3”
NR
6”
6”
4”
NR
4”
3”
3”
NR
4”
4”
5”
NR
6”
NR
6”
4”
NR
NR
2”
2”
6”
4”
NR
4”
2”
NR
6”
2”
5”
5”
6”
3”
NR
6”
4”
4”
NR
4”
3”
3”
NR
4”
4”
5”
NR
6”
NR
6”
4”
NR
4”
2”
3”
6”
4”
4”
4”
NR
4”
6”
2”
5”
10”
6”
3”
NR
6”
4”
6”
NR
4”
3”
NR
NR
4”
4”
5”
NR
6”
NR
6”
4”
4”
4”
2”
3”
6”
4”
6”
4”
NR
4”
NR
4”
5”
10”
6”
3”
NR
6”
6”
5”
3”
4”
3”
3”
NR
4”
4”
5”
4”
6”
NR
12”
4”
NR
NR
NR
NR
6”
4”
4”
4”
3”
9”
6”
NR
3”
10”
6”
3”
6”
6”
4”
9”
9”
4”
3”
3”
NR
3”
4”
3”
NR
6”
5 lf
12”
4”
NR
NR
NR
NR
8”
5”
4”
4”
6”
9”
6”
NR
3”
10”
6”
3”
6”
6”
4“
9”
3”
4”
3”
NR
NR
3”
4”
3”
NR
6”
5 lf
NR
NR
4”
NR
2”
2”
3”
2”
4”
6”
10”
4”
4”
2”
5”
10”
6”
3”
6”
6”
6”
4”
2”
4”
3”
3”
NR
4”
4”
3”
NR
6”
NR
3”
NR
NR
36”
36”
36”
8”
4”
NR
NR
5”
4”
3”
36”
5”
10”
6”
NR
6”
6”
NR
4”
9”
4”
3”
3”
5 lf
4”
NR
36”
NR
6”
NR
12”
4”
NR
NR
NR
NR
6”
4”
4”
2”
8”
4’
NR
NR
NR
10”
6”
2”
6”
6”
4”
4”
4”
4”
3”
3”
NR
4”
4”
5”
4”
2”
NR
6”
NR
4”
NR
NR
NR
4”
4”
NR
NR
NR
NR
NR
NR
NR
NR
5”
NR
NR
5”
NR
NR
NR
2”
2”
2”
NR
4”
NR
NR
4”
NR
NR
NR
NR
NR
NR
NR
NR
3”
3”
NR
NR
NR
NR
NR
NR
2”
2”
3”
NR
NR
3”
NR
NR
NR
½”
0.5”
0.5”
NR
2”
NR
3”
NR
NR
NR
NR
NR
4”
NR
NR
NR
4”
4”
NR
NR
NR
NR
NR
NR
NR
NR
3”
NR
NR
3”
NR
3”
NR
2”
2”
2”
NR
4”
NR
NR
4”
NR
NR
NR
6” 6” 3”
4” 4” 4”
6” 6” 3”
4” 4” 4”
12” 12” 6”
6” 6” 3”
3”
4”
3”
4”
6”
3”
4”
4”
4”
4”
6”
4”
4”
4”
4”
4”
12”
4”
4”
4”
4”
4”
12”
4”
6”
4”
6”
4”
12”
6”
4”
4”
4”
4”
6”
4”
4” 6”
4” 4”
4” 6”
4” 4”
6” 12”
4” 6”
6”
4”
6”
4”
6”
6”
4”
4”
4”
4”
12”
4”
6” 6” 6”
4” 4” 4”
6” 6” 6”
4” 4” 4”
18” 18” 18”
6” 6” 6”
6” 6” 6”
4” 4” 4”
6” 6” 6”
4” 4” 4”
6” 12” 12”
6” 6” 6”
None
None
None
spike
None
spike
30” or 8 collars
30” or 8 collars
12”
30” or 8 collars
30” or 8 collars
30” or 8 collars
6”
2”
6”
3”
6”
6”
6”
3”
3”
3”
6”
3”
None
24” or 7 collars
GLYPHOSATE-RESISTANT CORN
glyphosate
Callisto GT
Expert
Halex GT
Sequence
Warrant + glyphosate
0.75-1.13 lb a.e.
2 pt
3 qt
3.6 pt
2.5 pt
3 pt + 0.75 lb a.e.
LIBERTYLINK CORN
Liberty
22 oz
6”
2”
4”
6”
3”
4”
NR
a
c
NR = not recommended; – = not enough information to rank; lf=leaf stage. b Consult label for recommended additives. Triazine-resistant lambsquarters.
d Before tassel emergence.
* The weed heights and growth stages listed in this table are estimates of the maximum size where consistent control is expected. The maximum height for
effective control in any specific situation is dependent on environment conditions, including soil moisture, temperature, and relative humidity.
52
Page 12
TABLE 2A – Weed Response to Soil-Applied Herbicides
Table 2A – Weed Response
Soil-Applied Herbicides in Soybean*
in toSoybean*
SOYBEAN TOLERANCE**
COCKLEBUR
JIMSONWEED
LAMBSQUARTERS
NIGHTSHADE (E. BLACK)
PIGWEED
RAGWEED (COMMON)
RAGWEED (GIANT)
SMARTWEED
VELVETLEAF
WILD MUSTARD
HORSEWEED (MARESTAIL)
BARNYARDGRASS
CRABGRASS
GIANT FOXTAIL
GREEN FOXTAIL
YELLOW FOXTAIL
FALL PANICUM
WITCHGRASS
SANDBUR
BINDWEED (FIELD)
BINDWEED (HEDGE)
CANADA THISTLE
QUACKGRASS
YELLOW NUTSEDGE
BROADAXE XC
COMMAND 3ME
DUAL MAGNUM/ PARALLEL
FIRSTRATE
LOROX/LINEX
METRIBUZIN
OUTLOOK
PROWL H2O/PROWL
PURSUIT
PYTHON/ACCOLADE
SONALAN (PPI ONLY)
SPARTAN
TRIFLURALIN (PPI ONLY)
VALOR/ROWEL
WARRANT
ZIDUA
Premixes
AFFORIA (1 day EPP or more)a
ANTHEM
AUTHORITY ASSIST
AUTHORITY FIRST/SONIC
AUTHORITY MAXX
AUTHORITY MTZ
AUTHORITY XL
BOUNDARY
CANOPY/CANOPY BLEND
CANOPY EX (7 days EPP or more)a
ENVIVE
FIERCE
FIERCE XLT
FLEXSTAR GT 3.5
OPTILL
OPTILL PRO
PREFIX
SPARTAN CHARGE
SURVEIL
SYNCHRONY XP
TRIVENCE
VALOR XLT/ROWEL FX
VERDICT
WARRANT ULTRA
PERENNIALS
14/15
13
15
2
7
5
15
3
2
2
3
14
3
14
15
15
2
1
1
2
2
2
1
2
1
1
1
2
1
2
1
1
P
F
N
G
P
F
N
N
F
F
N
P
N
P
P
P
P
F
N
G
P
F
N
N
F
F
N
P
N
F
N
F
E
G
P
G
G
G
P
G
G
E
G
E
G
G
F
F
E
P
F
P
F
N
G
P
E
G
F
E
F
G
G
G
E
P
G
E
G
E
G
F
E
E
G
E
G
G
G
E
F
G
P
E
G
G
P
P
F
F
P
F
P
G
F
F
P
P
N
G
F
F
N
N
F
F
N
P
N
F
N
N
F
G
P
E
G
E
P
P
G
G
P
F
P
F
P
F
F
E
N
G
F
G
N
F
G
G
N
F
N
F
P
F
P
P
P
E
G
E
P
P
E
E
P
P
P
G
P
F
F
–
P
G
P
G
N
P
P
G
–
F
–
G
P
P
E
G
E
F
F
P
E
G
F
P
E
N
E
N
E
E
E
E
E
F
F
F
E
G
F
P
E
N
E
N
E
E
E
E
E
F
F
G
E
G
G
F
E
P
E
P
E
E
E
E
E
F
F
G
E
G
G
P
E
P
E
P
E
E
G
G
E
F
F
G
E
G
G
P
E
P
E
P
E
E
G
G
G
F
F
F
G
G
P
P
E
N
E
N
E
E
G
G
G
P
F
F
G
G
P
P
E
N
E
N
E
E
P
F
P
P
P
P
P
G
P
P
G
N
G
N
F
F
N
N
N
N
N
N
N
N
P
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
P
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
G
N
F
P
N
N
F
N
F
N
N
G
N
P
F
F
2/2/14
14/15
2/14
2/14
2/14
5/14
2/14
5/15
2/5
2/2
2/2/14
14/15
2/14/15
9/14
2/14
2/14/15
14/15
14/14
2/14
2/2
2/5/14
2/14
14/15
14/15
2
1
2
2
2
2
2
2
2
1
2
3
3
2
1
1
2
2
2
2
2
2
1
2
P
P
F
G
P
F
F
F
G
G
G
P
G
P
F
F
P
P
G
G
G
G
P
P
F
F
F
G
F
F
F
F
G
G
G
F
G
P
F
F
P
P
G
G
G
G
P
P
G
F
E
G
E
E
E
G
E
G
E
G
E
G
G
G
G
E
G
E
E
E
P
G
G
G
E
G
E
E
G
F
N
N
G
G
G
E
E
E
E
E
G
N
G
G
P
E
G
E
E
E
E
E
E
E
E
G
E
G
E
E
E
E
E
E
E
E
E
E
P
E
G
F
F
E
F
G
G
G
G
G
E
G
G
G
F
F
G
F
E
G
G
G
P
G
F
N
F
G
P
F
F
F
G
F
F
F
F
F
F
F
F
P
G
F
G
F
P
F
F
F
G
G
G
E
G
E
E
G
E
F
E
G
G
G
G
F
E
E
E
E
P
G
F
F
G
G
G
G
G
G
G
G
G
F
G
P
G
G
P
F
G
G
G
G
P
P
G
F
E
E
G
E
E
E
E
E
E
G
E
E
E
E
E
P
E
E
E
E
P
E
G
P
F
G
G
G
G
G
G
G
G
G
G
F
F
F
F
F
G
G
G
G
F
F
N
E
F
F
P
P
F
E
F
P
F
E
E
N
F
G
E
N
F
F
F
F
P
E
N
E
F
F
P
F
F
E
F
P
F
E
E
N
F
G
E
N
F
F
F
F
P
E
P
E
F
F
F
F
F
E
F
F
F
E
E
N
G
G
E
P
F
F
F
F
P
E
P
E
F
F
P
P
F
E
F
F
F
E
E
N
G
G
E
P
F
F
F
F
P
E
P
E
F
F
P
P
F
E
F
F
F
E
E
N
G
G
E
P
F
F
F
F
P
E
N
E
P
F
P
F
F
G
F
P
F
E
E
N
P
F
G
N
F
F
F
F
P
E
N
E
P
P
P
P
P
G
F
P
F
E
E
N
P
F
G
N
P
F
F
F
P
E
N
F
P
P
P
P
P
P
P
P
P
F
F
N
P
N
P
N
P
P
P
P
N
F
N
N
P
N
N
N
P
N
P
P
P
N
P
N
P
P
N
N
N
P
P
P
N
N
N
N
P
N
N
N
P
N
P
P
P
N
P
N
P
P
N
N
N
P
P
P
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
P
F
G
G
G
F
F
F
P
P
F
F
F
N
F
F
P
F
P
F
P
F
N
F
Herbicide Site of Action: The site of action key is located on pages 15-16.
** Crop Tolerance: 1=Minimal risk of crop injury; 2=Crop injury can occur under certain
Herbicide Effectiveness: P=Poor; F=Fair; G=Good; E=Excellent; N=None;
conditions (cold, wet); 3=Severe crop injury can occur. Follow precautions under
Remarks and Limitations and on the label; 4=Risk of severe crop injury is high.
– = Not enough information to rank
* The above ratings are a relative comparison of herbicide effectiveness. Weather a Afforia can only be applied 1 day or more and Canopy EX can only be applied 7 days or
conditions greatly influence the herbicide’s effectiveness, and weed control may
more prior to planting soybean. See Remarks and Limitations section.
be better under favorable conditions or poorer under unfavorable conditions.
55
Page 13
WEED CONTROL IN SOYBEANS
Soil Applied
ANNUAL GRASSES
SITE OF ACTION
ANNUAL BROADLEAVES
TABLE 2B – Weed Response to Postemergence Herbicides
Table 2B – Weed Response
Postmergence Herbicides in Soybean*
intoSoybean*
COCKLEBUR
JIMSONWEED
LAMBSQUARTERS
NIGHTSHADE (E. BLACK)
PIGWEED
RAGWEED (COMMON)
RAGWEED (GIANT)
SMARTWEED
VELVETLEAF
WILD MUSTARD
HORSEWEED (MARESTAIL)
BARNYARDGRASS
CRABGRASS
GIANT FOXTAIL
GREEN FOXTAIL
YELLOW FOXTAIL
FALL PANICUM
WITCHGRASS
SANDBUR
BINDWEED (FIELD)
BINDWEED (HEDGE)
CANADA THISTLE
QUACKGRASS
YELLOW NUTSEDGE
PERENNIALS
SOYBEAN TOLERANCE**
ANNUAL GRASSES
SITE OF ACTION
WEED CONTROL IN SOYBEANS
ANNUAL BROADLEAVES
14/15
1
6
14
2
14
2
14
1
1
2
14/14
14
1
14/15
2
2
14
14
1
2/2
14
14/15
2
1
2
2
2
3
1
2
1
1
3
3
2
1
2
2
2
1
2
1
2
2
2
P
N
E
P
E
G
E
F
N
N
F
F
G
N
P
E
G
P
P
N
E
F
P
F
N
G
F
G
G
E
G
N
N
F
F
G
N
F
F
G
F
P
N
G
G
F
F
N
G
F
N
P
N
F
N
N
G
F
P
N
P
P
G
P
F
N
G
P
P
F
N
P
F
N
G
N
G
N
N
N
G
G
N
G
E
E
G
P
N
N
G
G
G
N
P
G
E
E
P
E
N
N
E
E
E
N
E
E
E
E
P
N
E
E
E
P
N
F
P
G
E
E
E
N
N
P
G
E
N
G
F
F
G
P
N
G
E
G
P
N
F
P
G
E
E
E
N
N
P
F
E
N
G
G
G
G
P
N
G
F
G
P
N
E
P
E
P
E
G
N
N
E
F
P
N
P
G
G
P
P
N
E
G
P
E
N
G
E
G
F
G
F
N
N
G
E
F
N
P
G
G
P
E
N
G
P
P
P
N
E
P
E
E
G
E
N
N
E
E
E
N
E
G
E
E
P
N
E
E
E
P
N
F
P
G
P
G
P
N
N
N
P
P
N
P
P
–
P
P
N
G
P
P
N
G
N
N
N
N
N
N
E
G
N
N
N
E
N
F
F
N
N
E
N
N
N
N
G
N
N
N
N
N
N
G
G
N
N
N
G
N
F
F
N
N
G
N
N
N
N
E
N
N
P
N
N
N
E
E
N
N
N
E
N
G
E
N
N
E
N
N
N
N
E
N
N
P
N
N
N
E
E
N
N
N
E
N
G
G
N
N
E
N
N
N
N
G
N
N
P
N
N
N
E
E
N
N
N
E
N
G
G
N
N
E
N
N
N
N
E
N
N
N
N
N
N
E
G
N
N
N
E
N
F
F
N
N
E
N
N
N
N
E
N
N
N
N
N
N
E
G
N
N
N
E
N
F
F
N
N
E
N
N
N
N
E
N
N
N
N
N
N
E
E
N
N
N
E
N
P
N
N
N
E
N
N
N
N
N
N
N
N
N
P
N
N
N
N
N
N
N
N
P
P
N
N
N
N
N
N
N
N
N
N
N
N
P
N
N
N
N
N
N
N
N
P
P
N
N
N
N
N
N
N
N
G
N
F
N
F
N
N
N
N
N
N
N
N
P
F
N
N
N
F
N
N
N
E
N
N
N
N
N
N
G
G
N
N
N
F
N
N
N
N
N
G
N
N
N
N
N
F
N
E
N
F
N
N
N
N
N
N
N
N
F
P
N
N
N
G
N
N
GLYPHOSATE-RESISTANT SOYBEAN
GLYPHOSATE
9
EXTREME
2/9
FLEXSTAR GT 3.5
9/14
SEQUENCE
9/15
WARRANT + GLYPHOSATE
9/15
1
2
2
2
2
E
E
E
E
E
E
E
E
E
E
G
G
G
G
G
G
E
E
G
G
E
E
E
E
E
G
G
E
G
G
G
G
E
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
E
G
E
E
E
E
G
E
E
E
E
G
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
G
E
E
E
E
G
E
E
E
E
G
E
E
E
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
E
E
E
E
E
F
F
F
F
F
LIBERTYLINK SOYBEAN
LIBERTY/CHEETAH
CHEETAH MAX
1
2
E E G G G E G G G E G
E E G G E E E G G E G
F G
F G
F
F
F P
F P
P
P
P P
P P
P
P
Postemergence
ANTHEM
ASSURE II/TARGA
BASAGRAN/BROADLOOM
CADET
CLASSIC
COBRA
FIRSTRATE
FLEXSTAR
FUSILADE DX
FUSION
HARMONY SG
MARVEL
PHOENIX
POAST/POAST PLUS
PREFIX
PURSUIT
RAPTOR
REFLEX
RESOURCE
SELECT MAX/ ARROW/SELECT
SYNCHRONY XP
ULTRA BLAZER
WARRANT ULTRA
10
10/14
F G G G
F G G G
Herbicide Site of Action: The site of action key is located on pages 15-16.
Herbicide Effectiveness: P = Poor; F = Fair; G = Good; E = Excellent; N = None; – = Not enough information to rank
* The above ratings are a relative comparison of herbicide effectiveness. Weather conditions greatly influence the herbicide’s effectiveness, and
weed control may be better under favorable conditions or poorer under unfavorable conditions.
** Crop Tolerance: 1=Minimal risk of crop injury; 2=Crop injury can occur under certain conditions (cold, wet); 3=Severe crop injury can occur.
Follow precautions under Remarks and Limitations and on the label; 4=Risk of severe crop injury is high.
56
Page 14
WEED IDENTIFICATION GUIDE
Downy Brome
Winter or summer annual. Leaf blade is long and narrow
with clockwise twist. Both blades and sheaths are light
green and covered with soft hairs. Membranous ligule
rounded to collar-shaped, may be toothed. Sheath closed.
Large Crabgrass
Summer annual. Leaf sheath and blade (both surfaces)
densely hairy. Membranous ligule. No auricles. Leaf blade,
particularly the first leaf, is short and wide compared with
blades of most other grasses.
Giant Foxtail
Summer annual. Entire upper side of leaf covered with
dense, short hairs. Sheath margin hairy. Hairlike ligule. No
auricles.
Page 15
Barnyardgrass
Summer annual. Leaf sheath and blade hairless. No ligule.
No auricles. Stem flattened.
Smooth Crabgrass
Summer annual. Leaf sheath and blade hairless or sparsely
hairy. Membranous ligule. No auricles. Similar in appearance
to large crabgrass.
Yellow Foxtail
Summer annual. Leaf blade hairless except for long, wiry
hairs on upper side near base. Sheath is hairless. Hairlike
ligule. Stem flattened. No auricles.
WEED IDENTIFIICATION GUIDE
Shattercane
Summer annual. Leaf blades are flat. leaves resemble those
of forage sorghum or Sudan grass. Ligules are short and
membranous, with a terminal fringe of fine hairs. Large,
rounded, shiny seed.
Quackgrass
Perennial. Leaf sheath and blade hairless or sparsely hairy.
Clasping auricles present. Short, membranous ligule. Rhizomes usually present.
WEED IDENTIFICATION GUIDE
Yellow Nutsedge
Perennial. Not a grass species. Stem is triangular, solid and
nodeless. Leaves are smooth, hairless and deeply keeled.
Whole plant is yellowish to pale green. Tubers (nutlets) usually present at tips of rhizomes.
WEED IDENTIFIICATION GUIDE
WEED IDENTIFICATION GUIDE
Green Foxtail
Summer annual. Leaf blade is hairless. Leaf sheath is hairless
except for short hairs along margins. Hairlike Ligule. No
auricles.
Witchgrass
Summer annual. Leaf blade (both surfaces) and sheath
densely hairy. Hairlike ligule. Leaf midrib prominent. No
auricles. Seed smaller and less persistent than that of wildprosso millet.
Ladysthumb
Summer annual. Cotyledons are lanceolate with rounded
tips and smooth on both surfaces. Leaves are alternate,
smooth and lanceolate with smooth edges. May or may not
have a purplish mark (watermark) near the center of the
leaf. Nodes are surrounded by an ochrea with hairs extending up the stem. Similar to Pennsylvania Smartweed.
Fall Pancium
Summer annual. Leaf sheath and blade hairless. Hairlike
ligule. Leaf midrib prominent and somewhat white on older
plants. No hairs on sheath margin. No auricles.
Wirestem Muhly
Perennial. Leaves are flat, rough to the touch and have short
blades scattered along the stem and dense near the tip, giving a bushy appearance. Ligules are membranous and torn
or jagged across the top. Scaly rhizomes usually present.
Pennsylvania Smartweed
Summer annual. Cotyledons are lanceolate with rounded
tips and smooth on both surfaces. Leaves are alternate,
smooth and lanceolate with smooth edges. May or may
not have a purplish mark (watermark) near the center of
the leaf. Nodes are surrounded by an ochrea. Very similar
to ladysthumb, but does not have hairs extending from the
ochrea up to the stem.
Page 16
Wild-Proso Millet
Summer annual. Leaf blade (both surfaces) and sheath hairy.
Back of midrib often with a row of hairs protruding at a
90˚ angle. Hairlike ligule. No auricles. A large, oval-shaped,
shiny, dark brown to black seed often persists on the root
system.
Longspine Sandbur
Summer annual. Leaf sheaths are flattened, very loose,
smooth with hairy margins. Leaf blades are flat, rough and
sometimes sparsely hairy. Hairlike ligule. Seed enclosed in
spiny bur.
Wild Buckwheat
Summer annual. Cotyledons are linear and hairless. Stems
are reddish and hairless. Nodes are surrounded by an
ochrea. First leaf is arrow-shaped.
WEED IDENTIFICATION GUIDE
Hairy Nightshade
Summer annual. Similar to eastern black nightshade except
leaves and stems have prominent hairs. Mature fruits are
olive-green, yellow or brown berries.
Jimsonweed
Summer annual. Cotyledons smooth and lanceolate. Hypocotyl is often hairy. Leaves are smooth and alternate with
petioles. Seedling has an unpleasant odor when crushed.
Pigweed (Redroot, Smooth)
Summer annual. Cotyledons linear and hairless. Leaves are
alternate and ovate with a small notch or indentation at
the tip. This notch helps differentiate pigweed from eastern
black nightshade. Leaves also have purplish petioles. Smooth
pigweed looks very similar to redroot pigweed as seedlings,
but can be differentiated by reproductive structures.
Common Lambsquarters
Summer annual. Cotyledons are small and linear. First two
leaves are opposite and ovate with smooth edges. later
emerging leaves are alternate and triangular with unevenly
toothed edges. Cotyledons and leaves are covered with
white, mealy granules that look like frost.
Common Sunflower
Summer annual. Cotyledons are oval. Leaves are alternate,
simple, rough, hairy, mostly with saw-toothed margins
tapered to a point.
Page 17
Eastern Black Nightshade
Summer annual. Cotyledons small, ovate and green on both
surfaces. First leaves are ovate and simple with a wavy edge
and petioles. First leaves have purple undersides. May look
like redroot pigweed when very small, but does not have
notch at leaf tip as redroot pigweed does. Fruits are glossy
black berries.
Common Cocklebur
Summer annual. Cotyledons are smooth, waxy and lanceolate and may be protruding from the bur. Leaves are alternate and triangular to ovate with a rough, sandpaper feel.
Common Ragweed
Summer annual. Cotyledons are thick and oval to spatulate
with grooved petioles. Adult leaves are pinnatifid with a
lacy appearance. Small seedling very similar to giant ragweed, but common ragweed cotyledons are much smaller
with purple undersides.
WEED IDENTIFIICATION GUIDE
Field Bindweed
Perennial. Cotyledons are smooth, dark green, square to
kidney- shaped. Leaves are ovate with spreading basal lobes.
Flowers are white to pink.
WEED IDENTIFIICATION GUIDE
WEED IDENTIFICATION GUIDE
Giant Ragweed
Summer annual. Cotyledons oval to spatulate with grooved
petioles. Early leaves covered with dense hair. Small seedling
very similar to common ragweed, but giant ragweed cotyledons are three to four times larger and green underneath
instead of purple. Adult leaves are deeply three-lobed (occasionally five-lobed) with a rough surface.
Virginia Pepperweed
Summer or winter annual. Cotyledons lack hairs, have a peppery taste and are unequally oval, with long petioles. Leaves
on stem are lanceolate to linear, coarsely toothed, usually
without petioles; basal leaves are hairless, lobed, with one
large terminal lobe and several smaller lateral ones.
Yellow Rocket
Winter annual or biennial. Cotyledons and early leaves
are round to ovate and are borne on long petioles.
Cotyledons have a slight notch at the tip. Older leaves
are pinnately lobed with a large terminal lobe.
Velvetleaf
Summer annual. Cotyledons have slightly different shapes
– one is nearly round; the other more heart-shaped. Both
cotyledon margins are entire, and cotyledons are covered
on both surfaces with short hairs. The stem is densely hairy.
Leaves are heart-shaped and alternate with serrated margins
and velvety, hairy surfaces.
Shepherd’s-Purse
Summer or winter annual. Cotyledons and early leaves are
oval to spatulate and are borne on long petioles. Older
rosette leaves are variable in shape and variously lobed with
toothed or wavy edges.
Bull Thistle
Biennial. Cotyledons are round to spatulate, hairless and
fleshy. First leaves are oval to spatulate with spines and
a rough, bumpy surface. Forms rosette with adult leaves
becoming pinnatifid and with dense hairs on undersurfaces.
Page 18
Field Pennycress
Summer or winter annual. Cotyledons are bluish green and
round. Young leaves are smooth, round to oval, with distinct
petioles.
Wild Mustard
Summer or winter annual. Cotyledons are kidney-shaped
and smooth. Leaves are alternate and hairy and vary
considerably in size and shape. Stem also hairy, especially
near base.
Canada Thistle
Perennial. Cotyledons are dull green, relatively thin. Leaves
are alternate, usually with crinkled edges and spiny margins
somewhat lobed and smooth.
WEED IDENTIFICATION GUIDE
Common Purslane
Summer annual. Cotyledons are linear and hairless. Leaves
are opposite with each pair rotated around the stem 90˚
from the previous pair. Leaves are smooth and spatulate,
thick, fleshy and without hairs. Stems are prostrate and
reddish.
Prickly Lettuce
Summer or winter annual, or sometimes a biennial. Cotyledons are oval to spatulate. Seedling is a rosette of leaves
arising from a crown. First leaves are pale green and spatulate. Later emerging leaves have spiny edges and prickly
spines along the underside of a prominent midrib. Stem is
hollow with milky juice.
Horseweed (Marestail)
Winter or summer annual. Cotyledons are smooth, green
and spatulate. Early leaves are entire. Later leaves are alternate, without petioles, crowded around the stem, entire or
toothed and often hairy.
Common Chickweed
Summer or winter annual. Cotyledons are lanceolate. Seedling is small, pale green and only sparsely hairy. First leaves
have very pointed tips and petioles. Hypocotyl is slender and
often reddish.
Henbit
Winter annual. Cotyledons are round on hairy petioles. The
base of cotyledon blade is notched where it meets the petiole. Leaves are opposite, hairy, with rounded teeth. Lower
leaves are opposite, hairy, with rounded teeth. Lower leaves
have petioles; upper leaves wrap around the stem and are
without petioles.
Page 19
White Campion
Biennial or short-lived perennial. Cotyledons are spatulate
and hairy. First leaves are also hairy and narrowly oval.
Wild Carrot
Biennial. Cotyledons are linear, long and smooth. The first
emerging leaf and subsequent leaves are compound, lacy
and pinnatifid. Seedling similar in appearance to cultivated
carrot.
Venice Mallow
Summer annual. Cotyledon blades are yellow-green, thick,
rounded or heart-shaped. Cotyledon petioles are often longer than the blades. Leaves are alternate; smooth on upper
surface and hairy on lower surface. First two leaves round
with toothed margins; subsequent leaves deeply lobed.
WEED IDENTIFIICATION GUIDE
Common Dandelion
Perennial. Cotyledons are spatulate. Produces a rosette of
leaves arising from a crown. Leaves are simple, lobed and
variable. Contains a milky juice.
TABLE 2C – Herbicide Premixes in Soybean
Table 2C – Herbicide Premixes in Soybeans
COMPANY
FORMULATION
TYPICAL
USE RATEa
=
EQUIVALENT RATES
DuPont
50.8WG
2.5 oz/A
=
0.25 oz Harmony SG +
0.25 oz Express +
2 oz Valor
Anthem
FMC
2.15SE
8 oz/A
=
0.6 oz Cadet +
2.45 oz Zidua
Authority Assist
FMC
4L
10 oz/A
=
8.3 oz Spartan +
3.34 oz Pursuit L
FMC/Dow
70DF
6.4 oz/A
=
8 oz Spartan +
0.6 oz FirstRate
Authority MAXX
FMC
66WG
5 oz/A
=
6.2 oz Spartan +
0.8 oz Classic
Authority MTZ
FMC
45DF
16 oz/A
=
5.76 oz Spartan +
5.76 oz Metribuzin
Authority XL
FMC
70WG
4 oz/A
=
5 oz Spartan +
1.25 oz Classic
Autumn Super
Bayer
51WG
0.5 oz/A
=
0.0019 lb ai iodosulfuron +
0.014 lb ai thiencarbazone-methyl
Boundary 6.5EC
Syngenta
6.5EC
2 pt/A
=
1.33 pt Dual Magnum +
6.67 oz Metribuzin
BroadAxe XC
Syngenta
7L
32 oz/A
=
5.6 oz Spartan +
1.65 pt Dual Magnum
Canopy
DuPont
75WG
4.5 oz/A
=
1.92 oz Classic +
3.86 oz Metribuzin
Canopy Blend
DuPont
58.3WG
5.75 oz/A
=
1.9 oz Classic +
3.83 oz Metribuzin
Canopy EX
DuPont
29.5WG
2.2 oz/A
=
2 oz Classic +
0.3 oz Express SG
NuFarm Inc
3L
1 qt/A
=
1 pt Reflex +
27 oz Cheetah
Enviveb
DuPont
41.3WG
3.5 oz/A
=
2 oz Valor +
1.28 oz Classic +
0.192 oz Harmony SG
Extreme
BASF
2.17L
3 pt/A
=
0.56 lb a.e. glyphosate +
4 oz Pursuit L
Fierce
Valent
76WG
3 oz/A
=
1.97 oz Valor +
1.5 oz Zidua
Fierce XLT
Valent
62.41WG
4 oz/A
=
1 oz Classic +
1.9 oz Valor +
1.5 oz Zidua
Syngenta
2.82L
3.5 pt/A
=
0.99 lb a.e. glyphosate +
1 pt Flexstar
TRADE NAME
WEED IDENTIFICATION GUIDE
WEED CONTROL IN SOYBEANS
Afforia
Authority First/Sonic
Cheetah Max
Flexstar GT 3.5
(Continued on next page)
a
Typical use rates recommended are for medium textured soils with 3% organic matter. Lower rates can be used in planned preemergence followed
by postemergence programs in glufosinate or glyphosate-resistant soybeans. These rates can be found in the Remarks and Limitations section for
each herbicide.
b DO NOT apply more than 2.5 oz/A of Envive if you are located north of I-96 or have a composite pH between 7.1 and 7.6.
c DO NOT apply more than 6 oz/A of Trivence is you are located north of I-96 or have a composite soil pH between 7.1 and 7.6.
57
Page 20
TABLE 2C –Herbicide Premixes in Soybean (continued)
Table 2C – Herbicide Premixes in Soybeans (cont.)
TRADE NAME
FORMULATION
Syngenta
2.56EC
Valent/Dow
Marvel
TYPICAL
USE RATEa
=
EQUIVALENT RATES
0.5 pt/A
=
8 oz Fusilade DX +
4.8 oz Puma
co-pack
3 oz/A
0.6 oz/A
of
of
Valor (Gangster V, Surveil V)
FirstRate (Gangster FR, Surveil FR)
FMC
3L
7.25 oz/A
=
0.9 oz Cadet +
11 oz Flexstar
OpTill
BASF
68WG
2 oz/A
=
1 oz Sharpen +
4 oz Pursuit L
OpTill PRO
BASF
co-pack
2 oz/A
10 oz/A
of
of
OpTill
Outlook
Prefix
Syngenta
5.29L
2 pt/A
=
1 pt Dual Magnum +
1 pt Reflex
Rowel FX
Monsanto
40.3WG
4 oz/A
=
1.65 oz Classic +
2.34 oz Rowel
Sequence
Syngenta
5.25L
2.5 pt/A
=
0.98 pt Dual Magnum +
0.7 lb a.e. glyphosate
FMC
3.5SC
8 oz/A
=
1.33 oz Aim +
6.27 oz Spartan
Dow AgroSciences
48WG
3.5 oz/A
=
2.47 oz Valor +
0.5 oz FirstRate
Synchrony XP
DuPont
28.4WG
0.75 oz/A
=
0.64 oz Classic +
0.105 oz Harmony SG
Trivencec
DuPont
61.3WG
8 oz/A
=
1.25 oz Classic +
4.75 oz Metribuzin +
2 oz Valor
Valor XLT
Valent
40.3WG
4 oz/A
=
1.65 oz Classic +
2.34 oz Valor
Verdict
BASF
5.57L
5 oz/A
=
1 oz Sharpen +
4.2 oz Outlook
Monsanto
3.45CS
3 pt/A
=
2.83 pt Warrant +
0.96 pt Reflex
Fusion
Gangster/Surveil
Spartan Charge
Surveil
Warrant Ultra
a
Typical use rates recommended are for medium textured soils with 3% organic matter. Lower rates can be used in planned preemergence followed
by postemergence programs in glufosinate or glyphosate-resistant soybeans. These rates can be found in the Remarks and Limitations section for
each herbicide.
b DO NOT apply more than 2.5 oz/A of Envive if you are located north of I-96 or have a composite pH between 7.1 and 7.6.
c DO NOT apply more than 6 oz/A of Trivence is you are located north of I-96 or have a composite soil pH between 7.1 and 7.6.
58
Page 21
WEED CONTROL IN SOYBEANS
COMPANY
TABLE 3A — Weed Response to Herbicides
Table 3A – Weedin
Response
Herbicides in Small Grains*
SmalltoGrains*
SUMMER
ANNUALS
BLUEGRASS (ANNUAL)
CHEAT
DOWNY BROME
RYEGRASS (ANNUAL)
WINDGRASS (COMMON )
CHICKWEED (COMMON)
DEADNETTLE (PURPLE)
HENBIT
HOARY ALYSSUM
HORSEWEED (MARESTAIL)a
MAYWEED (DOGFENNEL)
MUSTARD SPECIES
PENNYCRESS (FIELD)
SHEPHERDSPURSE
LAMBSQUARTERS (COMMON)
PIGWEED
RAGWEED (COMMON)
RAGWEED (GIANT)
SMARTWEED
BINDWEED (FIELD)
CANADA THISTLE
SOWTHISTLE
WILD GARLIC
WILD ONION
PERENNIALS
CROP TOLERANCE**
WINTER ANNUAL
BROADLEAVES
SITE OF ACTION
WEED CONTROL IN SMALL GRAINS
WINTER ANNUAL
GRASSES
2,4-D AMINE
4
3
N
N
N
N
N
P
F
P
G
G
P
E
E
E
G
G
G
G
P
P
P
P
P
P
2,4-D ESTER
4
3
N
N
N
N
N
P
F
P
G
G
P
E
E
E
G
G
G
G
P
F
F
P
F
F
AFFINITY BROADSPEC
2/2
1
N
N
N
N
N
E
G
E
P
F
P
E
E
E
E
E
F
P
E
P
F
F
G
F
AXIAL XL
1
1
-
-
-
E
G
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
BANVEL/CLARITY
4
3
N
N
N
N
N
F
P
P
F
G
F
F
P
G
G
G
G
G
G
F
F
F
F
F
N
BUCTRIL/MOXY
6
1
N
N
N
N
N
P
-
G
F
P
F
E
G
G
E
P
G
G
G
P
P
N
N
CURTAIL
4/4
3
N
N
N
N
N
P
-
-
G
G
G
E
E
E
G
G
G
G
F
P
F
P
P
P
EXPRESS
2
1
N
N
N
N
N
E
E
E
P
F
E
E
E
G
E
F
P
P
F
P
F
F
F
P
HARMONY
2
1
N
N
N
N
N
G
-
-
P
N
E
G
G
G
G
E
F
P
E
P
P
P
E
F
HARMONY EXTRA
2/2
1
N
N
N
N
N
E
G
E
P
F
E
E
E
E
E
E
F
P
E
P
F
F
E
F
HUSKIE
N
6/27
1
N
N
N
N
N
G
E
E
F
E
F
E
E
E
E
E
E
G
F
P
F
F
N
MCPA
4
2
N
N
N
N
N
P
-
-
G
G
P
G
G
G
G
G
G
F
P
P
P
P
P
P
OSPREY
2
2
Gb
F
-
G
E
P
N
N
N
N
N
G
G
-
N
P
N
N
N
N
N
N
N
N
PEAK
2
2
N
N
N
N
N
G
F
F
-
-
P
E
E
G
F
E
E
F
F
F
F
N
G
N
POWERFLEX HL
2
2
Gb E
G
E
E
G
F
F
N
P
-
E
E
G
G
G
N
N
F
N
N
N
F
N
PROWL H2O
3
2
-
-
-
-
P
N
N
N
N
N
N
-
-
-
F
F
N
N
N
N
N
N
N
N
PUMA
1
2
N
N
-
-
F
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
STARANE ULTRA
4
2
N
N
N
N
N
F
-
-
N
-
P
F
-
-
P
P
E
E
F
F
P
P
N
N
4
2
N
N
N
N
N
P
-
-
P
E
G
-
-
-
P
P
G
G
F
P
G
F
N
N
4/4
2
N
N
N
N
N
P
-
-
P
E
G
G
-
-
P
P
E
G
F
F
G
F
N
N
STINGER
WIDEMATCH
a
Group 2 (ALS-inhibiting) herbicides will not control Group 2 resistant horseweed.
b
Will not control annual bluegrass that has already started to flower.
Herbicide Site of Action: The site of action key is located on pages 15-16.
Herbicide Effectiveness: P = Poor; F = Fair; G = Good; E = Excellent; N = None; – = Not enough information to rank
* The above ratings are a relative comparison of herbicide effectiveness. Weather conditions greatly influence the herbicide’s effectiveness, and weed
control may be better under favorable conditions or poorer under unfavorable conditions.
** Crop Tolerance: 1=Minimal risk of crop injury; 2=Crop injury can occur under certain conditions (soil applied—cold, wet: foliar applied—hot, humid);
3=Severe crop injury can occur. Follow precautions under Remarks and Limitations and on the label; 4=Risk of severe crop injury is high.
Recommended only in rescue situations.
111
Page 22
FIGURE 1 — Wheat growth stages according to the Feeke’s scale.
Management inputs are indicated.
Figure 1 – Wheat growth stages according to the Feeke’s scale.
Management inputs are indicated.
TILLERING
STEM EXTENSION
jointing
Peak
HEADING
RIPENING
boot
MANAGEMENT
Osprey, PowerFlex HL, Puma
Axial XL, Express
Affinity BroadSpec, Harmony, Harmony Extra
Huskie, Prowl H2O
Buctril, Moxy
Banvel, Clarity
2,4-D, MCPA
Starane Ultra, Stinger, Widematch
flowering
in
“boot”
Curtail
ligule of
last leaf
just
visible
last leaf
just
visible
Winter
Dormant
one
shoot
1
tillering
begins
2
leaf
leaf
sheaths
sheaths strongly
tillers lengthen erected
formed
3
4
5
first
node
of stem
visible
6
second
node
visible
7
8
9
FEEKE’S SCALE
12123
Page
10
10.1
10.5
11
TABLE 4A —Weed Response to Herbicides
TABLE
Response
Herbicides
Table
4A –4A
Weed—Weed
Response
to Herbicides
intoForage
Legumes*
in
Forage
Legumes*
in Forage Legumes*
COCKLEBUR
COCKLEBUR
JIMSONWEED
JIMSONWEED
LAMBSQUARTERS
LAMBSQUARTERS
NIGHTSHADE
Black)
NIGHTSHADE
(E.(E.
Black)
PIGWEED
(Redroot)
PIGWEED
(Redroot)
RAGWEED
(COMMON)
RAGWEED
(COMMON)
SMARTWEED
SMARTWEED
VELVETLEAF
VELVETLEAF
WILD
MUSTARD
WILD
MUSTARD
HOARY
ALYSSUM
HOARY
ALYSSUM
YELLOW
ROCKET
YELLOW
ROCKET
CHICKWEED
(Common)
CHICKWEED
(Common)
HENBIT/DEADNETTLE
HENBIT/DEADNETTLE
BARNYARDGRASS
BARNYARDGRASS
CRABGRASS
CRABGRASS
GIANT
FOXTAIL
GIANT
FOXTAIL
GREEN
FOXTAIL
GREEN
FOXTAIL
YELLOW
FOXTAIL
YELLOW
FOXTAIL
FALL
PANICUM
FALL
PANICUM
WITCHGRASS
WITCHGRASS
BINDWEED
(FIELD)
BINDWEED
(FIELD)
CANADA
THISTLE
CANADA
THISTLE
QUACKGRASS
QUACKGRASS
YELLOW
NUTSEDGE
YELLOW
NUTSEDGE
DANDELION
DANDELION
CURLY
DOCK
CURLY
DOCK
PERENNIALS
PERENNIALS
CROP
TOLERANCE**
CROP
TOLERANCE**
ANNUAL GRASSES
ANNUAL GRASSES
SITE
ACTION
SITE
OFOF
ACTION
Seedling Legumes
Seedling Legumes
2,4-DB
2,4-DB
BUCTRIL/MOXY
BUCTRIL/MOXY
EPTAM
EPTAM
KERB
KERB
POAST/POAST
PLUS
POAST/POAST
PROWL H2O PLUS
PROWL H2O
PURSUIT
PURSUIT
RAPTOR
RAPTORMAX/ SELECT/ARROW
SELECT
SELECT MAX/Alfalfa
SELECT/ARROW
Established
Established Alfalfa
METRIBUZIN
METRIBUZIN
SINBAR
SINBAR
VELPAR
VELPAR
Glyphosate-Resistant
Alfalfa
Glyphosate-Resistant Alfalfa
EXTREME
EXTREME
GLYPHOSATE
GLYPHOSATE
4
64
86
38
13
31
23
22
12
1
2
32
23
12
11
21
22
22
12
1
P
P
G
G
P
P
P
P
N
N
N
N
E
E
G
G
N
N
P
P
G
G
P
P
P
P
N
N
N
N
F
F
G
G
N
N
G
G
E
E
G
G
P
P
N
N
G
G
P
P
G
G
N
N
F
F
G
G
P
P
P
P
N
N
P
P
E
E
E
E
N
N
G
G
F
FF
PF
P
N
N
F
F
E
E
E
E
N
N
F
F
G
G
F
PF
P
N
N
P
FP
FF
F
N
N
P
P
G
G
F
PF
P
N
N
P
P
G
G
G
G
N
N
F
F
G
G
F
PF
P
N
N
F
F
G
G
G
G
N
N
F
FF
FF
PF
P
N
N
P
P
G
G
E
E
N
N
F
FF
FF
PF
P
N
N
N
N
–
––
–
N
N
F
FF
FF
PF
P
N
N
P
P
G
G
G
G
N
N
P
P
P
FP
F
G
G
N
N
P
P
G
G
G
G
N
N
F
F
G
G
E
E
G
G
N
N
P
FP
PF
P
N
N
N
N
N
N
E
E
F
F
E
E
G
G
F
FF
F
E
E
N
N
N
N
E
E
F
F
G
G
G
G
F
FF
F
G
G
N
N
N
N
E
E
P
P
E
E
G
G
G
G
E
E
E
E
N
N
N
N
E
E
F
F
E
E
G
G
G
G
G
G
E
E
N
N
N
N
E
E
F
F
E
E
G
G
G
G
G
G
E
E
N
N
N
N
E
E
P
P
E
E
G
G
F
FF
F
E
E
N
N
N
N
E
E
P
P
E
E
G
G
F
FF
F
E
E
P
P
P
P
N
NN
N
N
N
N
N
P
P
P
P
N
N
P
P
P
P
N
N
N
N
N
N
N
N
P
FP
F
N
N
N
N
N
N
F
F
G
G
F
F
N
N
N
N
P
P
G
G
N
N
N
N
P
P
N
N
N
N
N
N
F
PF
P
N
N
N
N
P
P
N
N
N
N
N
N
N
N
P
P
–
–
N
N
F
PF
P
P
P
P
P
N
N
N
N
P
P
–
–
N
N
5
55
55
5
3 E G E N E E
E G
G G
E G
N G
E G
E
33 G
3
G
G
G
G
G
G
3 G G E F E E
3 G G E F E E
E
E
G
G
E
E
E
E
G
G
G
G
E
E
G
G
E
E
E
E
G
G
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
E
E
E
E
G
G
E
E
E
E
G
G
E
E
G
G
G
G
E
E
G
G
G
G
E
E
N N P P G P
N N
P G
P
P
F FP P
F P
P
F
F
P
F
P
F F F F E P
F F F F E P
2/9 2 E E E E E E G G E G E E F E E E E E E E G G E F F F
2/9
E E
E E
E E
E E
E E
E G
G G
G E
E G
G E
E E
E G
F E
E E
E E
E E
E E
E E
E E
E G
G G
G E
E FF G
F FF
9 12 E
9 1 E E E E E E G G E G E E G E E E E E E E G G E F G F
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
G
G
G
G
G
G
E
E
E
E
F
PF
FP
F
Herbicide Site of Action: The site of action key is located on pages 15-16.
Herbicide Site of Action: The site of action key is located on pages 15-16.
Herbicide Effectiveness: P = Poor; F = Fair; G = Good; E = Excellent; N = None; – = Not enough information to rank
Herbicide Effectiveness: P = Poor; F = Fair; G = Good; E = Excellent; N = None; – = Not enough information to rank
* The above ratings are a relative comparison of herbicide effectiveness. Weather conditions greatly influence the herbicide’s effectiveness, and
* weed
The above
ratings
arebetter
a relative
comparison
of herbicideoreffectiveness.
conditions
greatly influence the herbicide’s effectiveness, and
control
may be
under
favorable conditions
poorer underWeather
unfavorable
conditions.
weed control may be better under favorable conditions or poorer under unfavorable conditions.
** Crop Tolerance: 1=Minimal risk of crop injury; 2=Crop injury can occur under certain conditions (cold, wet); 3=Severe crop injury can occur.
** Follow
Crop Tolerance:
1=Minimal
risk of crop
2=Crop
canlabel;
occur
underofcertain
wet); 3=Severe crop injury can occur.
precautions
under Remarks
and injury;
Limitations
andinjury
on the
4=Risk
severeconditions
crop injury(cold,
is high.
Follow precautions under Remarks and Limitations and on the label; 4=Risk of severe crop injury is high.
126
126
Page 24
CURLY
DOCK
CURLY
DOCK
F
FF
FF
F
G
G
G
G
E
E
E
E
G
G
DANDELION
DANDELION
F
F
G
G
G
G
–
––
F–
–F
P–
P
YELLOW
NUTSEDGE
YELLOW
NUTSEDGE
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
QUACKGRASS
QUACKGRASS
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
CANADA
THISTLE
CANADA
THISTLE
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
PERENNIALS
PERENNIALS
BINDWEED
(FIELD)
BINDWEED
(FIELD)
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
WITCHGRASS
WITCHGRASS
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
FALL
PANICUM
FALL
PANICUM
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
YELLOW
FOXTAIL
YELLOW
FOXTAIL
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
GREEN
FOXTAIL
GREEN
FOXTAIL
F
PF
P
P
P
E
E
E
E
F
FF
PF
P
GIANT
FOXTAIL
GIANT
FOXTAIL
P
FP
FF
F
E
E
E
E
F
FF
PF
P
CRABGRASS
CRABGRASS
G
G
G
G
G
G
–
––
–
G
G
P
P
P
P
BARNYARDGRASS
BARNYARDGRASS
G
G
G
G
G
G
E
E
–
––
––
P–
P
ANNUAL GRASSES
ANNUAL GRASSES
HENBIT/DEADNETTLE
HENBIT/DEADNETTLE
G
G
G
G
G
G
E
E
E
E
G
G
P
P
P
P
YELLOW
ROCKET
YELLOW
ROCKET
G
G
G
G
G
G
–
––
–
G
G
–
P–
P
HOARY
ALYSSUM
HOARY
ALYSSUM
F
F
G
G
G
G
E
E
G
G
E
E
E
E
F
F
WILD
MUSTARD
WILD
MUSTARD
G
G
G
G
G
G
E
E
E
E
E
E
E
E
G
G
VELVETLEAF
VELVETLEAF
G
G
G
G
G
G
E
E
E
E
G
G
G
G
P
P
SMARTWEED
SMARTWEED
G
G
G
G
G
G
E
E
E
E
G
G
–
P–
P
RAGWEED
(COMMON)
RAGWEED
(COMMON)
G
G
G
G
G
G
E
E
E
E
G
G
G
G
P
P
PIGWEED
(Redroot)
PIGWEED
(Redroot)
F
F
G
G
G
G
–
––
F–
–F
–
G
G
NIGHTSHADE
Black)
NIGHTSHADE
(E.(E.
Black)
G
G
G
G
G
G
E
E
E
E
G
G
G
G
E
E
LAMBSQUARTERS
LAMBSQUARTERS
2
22
22
32
33
33
33
23
2
JIMSONWEED
JIMSONWEED
4
44
4
4/4
4/4
2/2
2/2
4/4
4/4
4/4
4/4
4
44
4
COCKLEBUR
COCKLEBUR
2,4-D ESTER
2,4-D ESTER
BANVEL/CLARITY
BANVEL/CLARITY
2,4-D
+ BANVEL
2,4-D + BANVEL
CIMARRON
PLUS
CIMARRON PLUS
CROSSBOW
CROSSBOW HL
FOREFRONT
FOREFRONT HL
MILESTONE
MILESTONE
STINGER
STINGER
CROP
TOLERANCE**
CROP
TOLERANCE**
ANNUAL BROADLEAVES
ANNUAL BROADLEAVES
CHICKWEED
(Common)
CHICKWEED
(Common)
TABLE 4B —Weed Response to Herbicides
TABLE 4B —Weed Response to Herbicides
in Established
Forage
Grasses*
Table 4B – Weed
Response to Herbicides
in Established
Forage Grasses*
in Established
Forage
Grasses*
SITE
ACTION
SITE
OFOF
ACTION
WEED CONTROL IN FORAGE
ANNUAL BROADLEAVES
ANNUAL BROADLEAVES
P
FP
FF
F
E
E
E
E
E
E
E
E
P
P
Multiple herbicide-resistant Palmer amaranth & waterhemp in Michigan:
Keys to management in soybean, corn and alfalfa
Christy Sprague, Extension Weed Science
www.MSUweeds.com | November 2015
MANAGEMENT
Page 25
MANAGEMENT
Multiple herbicide-resistant Palmer amaranth & waterhemp (cont.)
196
Page 26
Multiple herbicide-resistant Palmer amaranth & waterhemp (cont.)
MANAGEMENT
Page
19727
MANAGEMENT
Multiple herbicide-resistant Palmer amaranth & waterhemp (cont.)
198
Page 28
Controlling Horseweed (Marestail)
WEEDMANAGEMENT
CONTROL IN CORN
199
Page 29
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Manager
517-614-9236
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