Herbicide Mode of Action Chart - PDF by h73ksal0

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									             CORN AND SOYBEAN
                                              HERBICIDE CHART
                          Repeated use of herbicides with the same site of action can result
                            in the development of herbicide-resistant weed populations.

By Mode of Action                                                             (effect on plant growth)                                      By Premix
                                                                                                                                            This chart lists premix herbicides
         This chart groups herbicides by their modes of action to assist
                                                                                                                                            alphabetically by their trade names
         you in selecting herbicides 1) to maintain greater diversity in
                                                                                                                                            so you can identify the premix’s
         herbicide use and 2) to rotate among herbicides with different
                                                                                                                                            component herbicides and their
         sites of action to delay the development of herbicide resistance†.
                                                                                                                                            respective site of action groups.
                                                                                                                                            Refer to the Mode of Action
                                                                                                                                            chart for more information.
                     Site of                                                                                                                                                   Component
                     Action                               Chemical              Active                  Product Examples                                                                         Site of
                     Group*    Site of Action             Family                Ingredient              (Trade Name ®)                  Premix               Trade              Active           Action
                                                                                                                                        Trade Name ®         Name ®             Ingredient       Group*
                      1    ACCase Inhibitors              Aryloxyphenoxy        fenoxaprop-p-ethyl      Excel Super                     Accent 1- Pass       Accent             nicosulfuron         2
Synthesis                                                 propaionoate          fluazifop-p-butyl       Venture                                              Peak               prosulfuron          2
Inhibitors                                                                      quizalofop-p-ethyl      Assure II                                            Banvel II          dicamba              4
                                                          Cyclohexanedione      clethodim               Select                          Accent Total         Accent             nicosulfuron        2
                                                                                sethoxydim              Poast                                                Distinct           dicamba             4
                                                                                                                                                                                diflufenzopyr       19
                      2    ALS Inhibitors                 Sulfonylurea          chlorimuron             Classic                         Badge                                   MCPA                 4
                                                                                foramsulfuron           Option,                                                                 bromoxynil           6
                                                                                                        component of Option 1.2.3.**
                                                                                nicosulfuron            Accent                          Battalion            Elim EP        rimsulfuron              2
                                                                                primisulfuron           component of Summit                                  Dual II Magnum s-metolachlor/
                                                                                prosulfuron             component of PeakPlus                                               benoxacor               15
Amino                                                                           rimsulfuron             component of Battalion,                              Banvel II      dicamba                  4
Acid                                                                                                    component of Galaxy
                                                                                thifensulfuron-methyl   Pinnacle
Synthesis                                                                                                                               Boundary             Dual II Magnum s-metolachlor/
                                                                                                                                                                            benoxacor               15
Inhibitors                                                Imidazolinone         imazamox                component of Meridian Plus,                          Sencor         metribuzin               5
                                                                                                        component of Viper
                                                                                imazethapyr             Pursuit                         Broadstrike                             flumetsulam          2
                                                                                                                                        Dual Magnum                             s-metolachlor/
                                                          Triazolopyrimidine    flumetsulam             component of Broadstrike                                                benoxacor           15
                                                                                                        Dual Magnum
                                                                                cloransulam             FirstRate                       Buctril M                               MCPA                 4
                                                                                                                                                                                bromoxynil           6
                      9    EPSP Synthase                  None accepted         glyphosate              Roundup, Touchdown,
                           Inhibitor                                                                    others                          Cleansweep           Pursuit        imazethapyr              2
                                                                                                                                                             Basagran Forté bentazon                 6
                      4    Specific site                  Phenoxy               2,4-D                   numerous                        Conquest             Pursuit            imazethapyr          2
                           unknown                                              2,4-DB                  Caliber, Cobutox,                                    Sencor             metribuzin           5
Growth                                                                          MCPA                    numerous                        Converge Pro         Converge 480       atrazine            5
Regulators                                                                                                                                                   Converge Pro       isoxaflutole        27
(Synthetic auxins)                                        Benzoic Acid          dicamba                 Banvel II, Oracle
                                                                                                                                        Distinct                                dicamba             4
                     19    Auxin Transport                Semicarbazone         diflufenzopyr           component of Distinct                                                   diflufenzopyr       19

                                                                                                                                        Galaxy               Elim EP            rimsulfuron          2
                      5    Photosystem II                 Triazine              atrazine                AAtrex, others                                       Roundup
                           Inhibitors                                                                                                                        Weathermax         glyphosate           9
                           (different binding than 6&7)                         simazine                Princep, Simadex
                                                                                                                                        Guardian             Classic            chlorimuron-ethyl    2
                                                          Triazinone            metribuzin              Sencor                                               Touchdown iQ       glyphosate           9
                      6    Photosystem II               Nitrile                 bromoxynil              Pardner, Koril
synthesis                  Inhibitors
                                                                                                                                        Laddok                                  atrazine             5
                                                                                                                                                                                bentazon             6
Inhibitors                 (different binding than 5&7) Benzothiadiazine        bentazon                Basagran Forté
                                                                                                                                        Logic M                                 MCPA                 4
                      7    Photosystem II               phenylu                 linuron                 Lorox L                                                                 bromoxynil           6
                           (different binding than 5&6)                                                                                 Marksman                                dicamba              4
                                                                                                                                                                                atrazine             5
Nitrogen             10    Glutamine Synthesis            None accepted         glufosinate             Liberty
Metabolism                                                                                                                              Meridian Plus        Meridian       imazamox                 2
                           Inhibitor                                                                                                                         Basagran Forté bentazon                 6

                                                                                                                                        Mextrol                                 MCPA                 4
                     13    Diterpene Synthesis            Isoxazolidinone       clomazone               Command                                                                 bromoxynil           6
Pigment                    Inhibitor
Inhibitors           27    HPPD Inhibitors                Isoxazole             isoxaflutole            Converge Pro
                                                                                                                                        Option 1.2.3.**      Option             foramsulfuron       2
                                                                                                                                                             Define             flufenacet          15
                           Triketone                                            mesotrione              Callisto
                                                                                tropramezone            Impact                          PeakPlus             Peak               prosulfuron          2
                                                                                                                                                             Banvel II          dicamba              4
                     14    PPO Inhibitors                 Diphenylether         acifluorfen             Blazer                          Primextra II                            atrazine             5
Cell                                                                            fomesafen               Reflex                          Magnum                                  s-metolachlor/
Membrane                                                  Aryl triazolinone     carfentrazone-ethyl     Aim EC
                                                                                                                                                                                benoxacor           15
Disrupters                                                                                                                              Shotgun                                 2,4-D                4
                     22    Photosystem I                  Bipyridilium          paraquat                Gramoxone                                                               atrazine             5
                           Electron Diverter
Seedling                                                                                                                                Summit                                  primisulfuron        2
                                                                                                                                                                                dicamba              4
Root                  3    Microtubule Inhibitors Dinitroaniline                pendimethalin           Prowl
Growth                                                                          trifluralin             Treflan, Rival,                 Ultim                                   nicosulfuron         2
Inhibitors                                                                                                                                                                      rimsulfuron          2

                                                                                                                                        Ultim Total          Ultim              nicosulfuron/
                      8    Lipid Synthesis                Thiocarbamate         EPTC                    Eradicane                                                               rimsulfuron         2
Seedling                   Inhibitors                                                                                                                        Distinct           dicamba             4
Shoot                15    Long-Chain Fatty               Chloroacetamide       s-metolachlor/benoxacor Dual II Magnum
                                                                                                                                                                                diflufenzopyr       19
Growth                     Acid Inhibitor                                       dimethenamid            Frontier                        Valor                Pursuit            imazethapyr          2
Inhibitors                                                                                                                                                   Prowl              pendimethalin        3
                                                          Oxyacetamide          flufenacet              component of Option 1.2.3.**
                                                                                                                                        Viper                Viper              imazamox            2
 www.plant.uoguelph.ca/resistant-weeds                                                                                                                       Reflex             fomesafen           14

  The most effective herbicide programs for resistance management are those that have multiple sites of action which are                    The layout for this publication was provided by the University of
 effective on every susceptible weed species listed on the product label.                                                                     Wisconsin’s Nutrient and Pest Management (NPM) Program.
 Support provided by:

* Site of Action Group is a classification system developed by the Weed Science Society of America.                                     Option 1.2.3. must be tank mixed with atrazine (sold separately).

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