Site of Action

This chart lists premix herbicides alphabetically by their trade names so you can identify the premix’s component herbicides and their respective site of action groups. Refer to the Mode of Action chart on the left for more information.

LipidSynthesisInhibitors

Chemical FamilyActive Ingredient

Product Examples(Trade Name ®)

Site ofAction Group

Number of resistant weed species in U.S.

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PAGE 1 OF 3

Premix Trade Name ® Trade Name ® Active Ingredient

Site of ActionGroup

Anthem Zidua pyroxasulfone 15Cadet !uthiacet-ethyl 14

Autority Assist Spartan sulfentrazone 14Pursuit imazethapyr 2

Authority First Spartan sulfentrazone 14FirstRate cloransulam 2

Autority MTZ Spartan sulfentrazone 14Sencor metribuzin 5

Authority XL Spartan sulfentrazone 14Classic chlorimuron 2

Autumn Super Autumn iodosulfuron 2------- thiencarbazone 2

Basis Blend Resolve rimsulfuron 2Harmony thifensulfuron 2

Bicep II Magnum Dual II Magnum s-metolachlor 15(Bicep Lite II Mag) AAtrex atrazine 5Boundary Dual Magnum s-metolachlor 15

Sencor metribuzin 5Breakfree ATZ Breakfree acetochlor 15(Breakfree ATZ Lite) AAtrex atrazine 5Bullet Micro-Tech alachlor 15

AAtrex atrazine 5Callisto Xtra Callisto mesotrione 27

AAtrex atrazine 5Canopy Classic chlorimuron 2

Sencor metribuzin 5Canopy EX Classic chlorimuron 2

Express tribenuron 2Capreno ------- thiencarbazone 2

Laudis tembotrione 27Cinch ATZ Dual II Magnum s-metolachlor 15(Cinch ATZ Lite) AAtrex atrazine 5Corvus ------- thiencarbazone 2

Balance Flexx isoxa!utole 27Degree Xtra Degree acetochlor 15

AAtrex atrazine 5Enlite Classic chlorimuron 2

Harmony thifensulfuron 2Valor !umioxazin 14

! ACCase Inhibitors 15 Aryloxyphenoxy fenoxaprop component of Fusion (acetyl CoA carboxylase) propionate !uazifop Fusilade DX quizalofop Assure II, Targa Cyclohexanedione clethodim Select, Arrow sethoxydim Poast, Poast Plus

" ALS Inhibitors 44 Sulfonylurea chlorimuron Classic (acetolactate synthase) foramsulfuron Option halosulfuron Permit iodosulfuron Autumn nicosulfuron Accent Q

Component

This chart groups herbicides by their modes of action to assist you in selecting herbicides 1) to maintain greater diversity in herbicide use and 2) to rotate among herbicides with di!erent sites of action to delay the development of herbicide resistance. The Site of Action Group is a classi"cation system developed by the Weed Science Society of America.

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NitrogenMetabolism

PigmentInhibitors

Photo-synthesisInhibitors

Growth Regulators (Synthetic auxins)

Amino AcidSynthesis Inhibitors

PAGE 2 OF 3Envive Classic chlorimuron 2

Harmony thifensulfuron 2Valor !umioxazin 14

Expert Dual II Magnum s-metolachlor 15AAtrex atrazine 5glyphosate glyphosate 9

Exteme Pursuit imazethapyr 2glyphosate glyphosate 9

Fierce Valor !umioxazin 14Zidua pyroxasulfone 15

Fierce XLT* Valor !umioxazin 14Zidua pyroxasulfone 15Classic chlorimuron 2

Flexstar GT Flexstar fomesafen 14glyphosate glyphosate 9

Fusion Fusilade DX !uazifop 1Puma fenoxaprop 1

Gangster Valor !umioxazin 14FirstRate cloransulam 2

Guardsman Max Outlook dimethenamid-P 15(G-Max Lite) AAtrex atrazine 5Halex GT Dual Magnum s-metolachlor 15

Callisto mesotrione 27glyphosate glyphosate 9

Harness Xtra Harness acetochlor 15AAtrex atrazine 5

Hornet Stinger clopyralid 4Python !umetsulam 2

Instigate Resolve rimsulfuron 2Callisto mesotrione 27

Keystone Surpass acetochlor 15(Keystone LA) AAtrex atrazine 5Lexar EZ Callisto mesotrione 27

Dual II Magnum s-metolachlor 15AAtrex atrazine 5

Lumax EZ Callisto mesotrione 27Dual II Magnum s-metolachlor 15AAtrex atrazine 5

Marksman Clarity dicamba 4AAtrex atrazine 5

NorthStar Beacon primisulfuron 2Clarity dicamba 4

Optill Sharpen sa!ufenacil 14Pursuit imazethapyr 2

Permit Plus Harmony thifensulfuron 2Permit halosulfuron 2

Priority Aim carfentrazone 14Permit halosulfuron 2

Pre"x Dual Magnum s-metolachlor 15Re!ex fomesafen 14

primisulfuron Beacon prosulfuron Peak rimsulfuron Resolve thifensulfuron Harmony tribenuron Express

Imidazolinone imazamox Raptor imazaquin Scepter imazethapyr Pursuit Triazoloyrimidine !umetsulam Python cloransulam FirstRate Triazolinones thiencarbazone component of Capreno 9 EPSP Synthase 13 None accepted glyphosate Roundup, Touchdown, Inhibitor others (5-enolpyruvyl-shikimate-3-phosphate)

: Speci!c site 10 Phenoxy 2,4-D Weedone, others unknown Benzoic acid dicamba Banvel, Clarity, others Carboxylic acid clopyralid Stinger !uroxypyr Starane !9 Auxin Transport 0 Semicarbazone di!ufenzopyr component of Status

% ; Photosystem II 24 Triazine atrazine AAtrex, others Inhibitors simazine Princep (di#erent binding than 6 & 7) Triazinone metribuzin Sencor, others < Photosystem II 1 Nitrile bromoxynil Buctril, Moxy Inhibitors (di#erent binding than 5 & 7) Benzothiadiazole bentazon Basagran = Photosystem II 7 Ureas linuron Lorox, Linex Inhibitors (di#erent binding than 5 & 6)

!> Glutamine Synthesis 1 None accepted glufosinate Liberty Inhibitor

% !? Diterpene Synthesis 1 Isoxazolidinone clomazone Command Inhibitor

"= HPPD Inhibitors 1 Isoxazole isoxa!utole Balance Flexx

Seedling Root GrowthInhibitors

Cell Membrane Disrupters

Seedling Shoot Growth Inhibitors

Layout provided by the University of Wisconsin’s Nutrient and Pest Management program (ipcm.wisc.edu).

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Glyphosate, Weeds, and Crop Series

Distributed by weed scientists from 16 North Central Universities, who are working on weed management in glyphosate-resistant cropping systems. For information about obtaining copies of this publication and other resources, see www.glyphosateweedscrops.org

Financial support for printing provided by BASF, Bayer CropScience, Dow AgroSciences, DuPont, Monsanto, Syngenta, and Valent USA. January 2013

Glyphosate, Weeds, and Crop Series GWC-3

* indicates product is not registered for use at the time of printing. Check for a label and MSDS at www.cdms.net to con!rm status.

NPM

PAGE 3 OF 3

Pyrazolone topramezone Impact, Armezon Triketone mesotrione Callisto tembotrione Laudis

!: PPO Inhibitors 2 Diphenylether aci!uorfen Ultra Blazer fomesafen Flexstar, Re!ex, others lactofen Cobra, Phoenix

N-phenylphthalimide !umiclorac Resource !umioxazin Valor Aryl triazinone sulfentrazone Spartan carfentrazone Aim !uthiacet-ethyl Cadet Pyrimidinedione sa!ufenacil Sharpen "" Photosystem I Electron Diverter 5 Bipyridilium paraquat Gramoxone Inteon

? Microtubule 6 Dinitroaniline ethal!uralin Sonalan Inhibitors pendimethalin Prowl H20, others tri!uralin Tre!an, others

@ Lipid Synthesis 5 Thiocarbamate butylate Sutan + Inhibitors EPTC Eradicane (not ACCase) !; Long-chain Fatty 1 Chloroacetamide acetochlor Degree, Harness, Surpass, Acid Inhibitor Warrant, others alachlor Intrro, Micro-Tech metolachlor Dual II Magnum, others dimethenamid Outlook

Oxyacetamide !ufenacet De"ne

Pyrazole pyroxasulfone Zidua

Prequel Resolve rimsulfuron 2Balance Flexx isoxa!utole 27

Pursuit Plus Pursuit imazethapyr 2Prowl pendimethalin 3

Realm Q Resolve rimsulfuron 2Callisto mesotrione 27

Resolve Q Resolve rimsulfuron 2Harmony thifensulfuron 2

Require Q Resolve rimsulfuron 2Clarity dicamba 4

Rezult Basagran bentazon 6Poast sethoxydim 1

Sequence Dual Magnum s-metolachlor 15glyphosate glyphosate 9

Shotgun AAtrex atrazine 5------- 2,4-D 4

Sonic Spartan sulfentrazone 14FirstRate cloransulam 2

Spartan Charge Spartan sulfentrazone 14Aim carfentrazone 14

Spirit Peak prosulfuron 2Beacon primisulfuron 2

Status ------- di!ufenzopyr 19Clarity dicamba 4

Steadfast Q Accent Q nicosulfuron 2Resolve rimsulfuron 2

SureStart Surpass acetochlor 15Stinger clopyralid 4Python !umetsulam 2

Synchrony Classic chlorimuron 2Harmony thifensulfuron 2

TripleFLEX Harness acetochlor 15Stinger clopyralid 4Python !umetsulam 2

Valor XLT Valor !umioxazin 14Classic chlorimuron 2

Verdict Sharpen sa!ufenacil 14Outlook dimethenamid-P 15

Widematch Stinger clopyralid 4Starane !uroxypyr 4

Yukon Banvel dicamba 4Permit halosulfuron 2

Zemax Callisto mesotrione 27Dual II Magnum s-metolachlor 15

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