Barnyardgrass

Overview

Barnyardgrass (Echinochloa crus-galli) is a highly invasive annual weed that significantly impacts various crops across the United States and Canada. Known for its robust growth and adaptability, barnyardgrass can reach heights of up to 5 feet, forming dense stands that compete aggressively with crops for light, nutrients, and water. This competition can lead to substantial yield losses, particularly in crops like corn, soybeans, rice, cotton, and vegetables.

In corn and soybean fields, barnyardgrass reduces yields by shading out the crop and competing for essential resources. In rice paddies, it is especially problematic, directly competing with rice plants and significantly reducing yields. Cotton and vegetable crops are also at risk, as barnyardgrass can harbor pests and diseases that further impact crop health and productivity.

Effective management of barnyardgrass typically involves a combination of cultural practices, mechanical control, and chemical herbicides, integrated into a comprehensive weed management strategy.

Photo Credit: Howard F. Schwartz, Colorado State University, Bugwood.org

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How to Identify Barnyardgrass

Identifying barnyardgrass (Echinochloa crus-galli) is crucial for effective management. Here are specific and detailed characteristics to help farmers recognize this invasive weed:

Seedlings:

  • The first leaves are linear to lance-shaped and smooth, typically about 1-2 cm long.

  • The stem below the first leaves is often green and smooth.

Leaves:

  • Shape: Barnyardgrass leaves are long, narrow, and linear, with a prominent midrib.

  • Texture: The leaves are smooth and hairless, with a glossy appearance.

  • Color: They are typically bright green.

Stems:

  • Height: Barnyardgrass can grow up to 5 feet tall.

  • Texture: The stems are smooth, erect, and often branched at the base.

  • Color: Stems are green but may have a reddish or purplish tinge.

Seed Head:

  • Appearance: The seed head is a dense, branched panicle that can be up to 12 inches long.

  • Color: The panicle is green to purplish, with a rough texture.

  • Spikelets: The spikelets are flattened and arranged in clusters along the branches of the panicle.

Seeds:

  • Shape: The seeds are small, oval, and flattened.

  • Color: They are typically brown to black.

  • Size: Each seed is about 2-3 mm long.

Roots:

  • Type: Barnyardgrass has a fibrous root system.

  • Depth: The roots can penetrate deeply into the soil, making mature plants difficult to pull out.

Growth Habit:

  • Habitat: Barnyardgrass thrives in disturbed soils, such as agricultural fields, roadsides, and waste areas. It is particularly common in wet or irrigated areas.

  • Lifecycle: It is an annual plant, completing its lifecycle in one growing season.

Key Identifying Features:

  • Lack of Ligule: The absence of a true ligule and the presence of a fringe of hairs at the leaf base are distinctive features.

  • Dense Panicle: The dense, branched panicle with rough-textured spikelets is a key identifying characteristic.

  • Smooth, Glossy Leaves: The smooth, hairless leaves with a prominent midrib and glossy appearance are also indicative of barnyardgrass.

By closely examining these characteristics, farmers can accurately identify barnyardgrass and implement appropriate control measures.

Photo Credit: Howard F. Schwartz, Colorado State University, Bugwood.org

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Geographic Impact of Barnyardgrass

Barnyardgrass is a pervasive and adaptable weed that impacts a variety of crops across diverse geographic regions in the United States and Canada. Here’s a detailed overview of its geographic impact:

United States:

  • Midwest: Barnyardgrass is prevalent in the Corn Belt, affecting major crops like corn and soybeans. States such as Iowa, Illinois, Indiana, and Ohio see significant infestations.

  • South: In the Southern states, including Texas, Arkansas, and Louisiana, barnyardgrass impacts rice, cotton, and soybean fields. The warm climate and long growing season favor its growth.

  • Northeast: While less common, barnyardgrass can still be found in states like Pennsylvania and New York, impacting vegetable and grain crops.

  • West: In states like California and Arizona, barnyardgrass can be found in irrigated fields and along waterways, affecting crops such as vegetables, rice, and cotton.

Canada:

  • Ontario and Quebec: Barnyardgrass is found in agricultural fields, particularly affecting corn and soybean crops.

  • Prairie Provinces: In Manitoba, Saskatchewan, and Alberta, barnyardgrass can be found in disturbed soils and along waterways, impacting various crops.

Timing of Barnyardgrass Impact

Barnyardgrass typically emerges in the spring when soil temperatures reach around 60-70°F, which can vary depending on the region. In the United States, this generally means barnyardgrass starts to impact fields from late April to early May. The weed continues to grow and compete with crops throughout the summer, peaking in its impact during the mid to late growing season.

Key Impact Periods:

  • Spring Emergence: Barnyardgrass seedlings begin to emerge in late April to early May.

  • Early Growth: During the early growth stages, barnyardgrass competes with crops for light, nutrients, and water.

  • Mid to Late Season: The weed's impact peaks as it grows taller and forms dense stands, significantly affecting crop yields and complicating harvest operations.

Photo Credit: Howard F. Schwartz, Colorado State University, Bugwood.org

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How to Manage Barnyardgrass in Corn and Soybeans

Farmers can manage barnyardgrass in corn and soybeans using herbicides such as AgSaver™ Glyphosate 53.8% and Willowood Paraquat 3SL*. AgSaver™ Glyphosate 53.8% contains glyphosate, isopropylamine salt, and is labeled for use on barnyardgrass in both corn and soybeans. Willowood Paraquat 3SL* contains paraquat dichloride and is also labeled for use on barnyardgrass in these crops. These herbicides can be effective tools in an integrated weed management strategy to control barnyardgrass and minimize its impact on crop yields.

Every product that labels BARNYARDGRASS as a weed, pest, or disease the product can be applied against is shown below. Click any product for label and more information.
2,4-D GranulesAAtrex® 4L HerbicideAAtrex® Nine-O®Abundit® EdgeAbundit® EdgeAbundit™ Extra (Exclusively Distributed by DuPont)Accent® HerbicideAccent® QAccord® Concentrate HerbicideAccord® XRT HerbicideAccord® XRT II HerbicideAcellus™ ATZAcquit™ 4 FAcumen® HerbicideAcuron®Acuron® FlexiAcuron® GTAfforia™Aggressor®Aggressor® AXAlecto™ 41SAlion® HerbicideAlite™ 27 HerbicideAlligare Diuron 4LAlligare Imazapyr 2 SLAlligare Imazapyr 4 SLAlligare Oryzalin 4Alligare Rotary 2 SLAlluvex™Amvac Scepter® 70 DG herbicideAndros® 1.88Anthem® ATZ HerbicideAnthem® Flex HerbicideAnthem® HerbicideAnthem® MaxxAqua Star®Aquamaster®AquaNeat® Aquatic HerbicideAquesta™ 4 FAquesta™ FRArgosArmezon® herbicideArmezon® PRO herbicideAroseArrest CSArrest PlusArrow 2ECArroz 80®Arroz 80® CAArsenal® herbicideArsenal® herbicide Applicators ConcentrateArsenal® PowerLine™ herbicideArtillery™ WSPArtillery™ WSP CAAsset-S PlusAssure® II HerbicideAssure® II HerbicideAsulam 3.3Asulam 4FAsulam HerbicideAsulox®Atra-5® HerbicideAtrazine 4LAtrazine 4LAtrazine 4L (ADAMA)Atrazine 4L (Drexel) HerbicideAtrazine 4L (Helena)Atrazine 4L (Loveland)Atrazine 4L (Tenkoz)Atrazine 4L Flowable Herbicide (Sipcam)Atrazine 4L herbicideAtrazine 90DFAtrazine 90DFAtrazine 90DF (Drexel)Atrazine 90DF Herbicide (ADAMA)Atrazine 90DF Herbicide (Sipcam)Atrazine 90WDGAtrazine DFAtticus Cavallo™ 4 SCAuthority® AssistAuthority® Edge HerbicideAuthority® EliteAuthority® First DFAuthority® MaxxAuthority® Supreme HerbicideAuthority® XL HerbicideAutonomy™ HerbicideAvatar™Avatar™ S2™Axial® BoldAxial® StarAxial® XLAxill Solutions Clethodim 2ECAxill Solutions Glufosinate 280SLAxill Solutions Paraquat 3SLAxiom® DFBalance® FlexxBalance® ProBalan™ DFBallast™Barricade® 4FLBarricade® 65WGBasamid® GBasis® BlendBasis® HerbicideBatalium® AmpedBatalium® IIBatalium™Battle Star®Bayonet® 2Beacon® HerbicideBeamBensumec™ 4 LF Preemergent Grass & Weed HerbicideBestow™ HerbicideBeyond® herbicideBeyond® Xtra herbicideBiathlon® Ornamental HerbicideBicep II MAGNUM®Bicep II MAGNUM® FCBicep Lite II MAGNUM®Blindside® HerbicideBolero® 8 EC HerbicideBolero® UltraMax HerbicideBombard™ HerbicideBoundary® 6.5 ECBrahma 44Brawl II ATZ™Brawl II™Brawl™Breakfree®Breakfree® ATZBreakfree® ATZ LiteBreakfree® NXTBreakfree® NXT [supplemental dist.]Breakfree® NXT ATZBroadaxe® HerbicideBroadAxe® XC HerbicideBroadhead® HerbicideBroadStar® HerbicideBromac® AdvancedBronate® Advanced™Brox®-M UltraBuccaneer® (55467-10)Buccaneer® 5Buccaneer® 5 ExtraBuccaneer® Plus (55467-9)Bullet® HerbicideButte®CaballeroCadence® ATZ NXTCadence® HerbicideCadence® LA NXTCadence® NXT HerbicideCadence™ ATZCadence™ Lite ATZ HerbicideCalibra™Callisto® GTCamo™Canopy® BlendCanopy® EX HerbicideCanopy® HerbicideCaparol® 4LCapreno®Caravel® 5G HerbicideCaravel® HerbicideCasoron® CSCavalcade® 65WDG HerbicideCavalcade® PQCelebrity® PlusCelsius® WGCerano® 5 MEGCeridian™ 2 ECCharger Basic®Charger MAX®Charger MAX® ATZCharger MAX® ATZ LiteChateau® EZChateau® Herbicide SWCheetah® HerbicideCheetah® ProCheetah™ Max HerbicideChlorimuron 25 WDGCinch®Cinch® ATZCinch® ATZ LiteCinco™Classic® HerbicideClassic® HerbicideCleanse®Cleanse® 2ECCleanse™ 2 ECCleantraxx™Clearpath® herbicide for Clearfield® riceClethodim 2 EC HerbicideClethodim 2EClincher® CA HerbicideClincher® SF HerbicideCloak®Cloak® EXClomate™ 3MECollide™ HerbicideCommand® 3MECommit ATZ Lite HerbicideCommit® ATZ HerbicideCommit® HerbicideCompensaComply™ HerbicideConfidence®Confidence® XtraConfidence® Xtra 5.6LCornbelt® Atrazine 4LCornbelt® Atrazine 90DFCornbelt® Trifluralin ECCornerstone K HerbicideCornerstone®Cornerstone® 5 PlusCornerstone® Plus (1381-192)Cornerstone® Plus (524-454-1381)Corsican HerbicideCorvetteCorvus®Cotoran® 4LCotton-Pro®Coyote™Craze®Credit® 41Credit® 41 ExtraCredit® 5.4 ExtraCredit® XtremeCrew® Specialty HerbicideCrusher®Crusher™Curbit® ECCurio® HerbicideCyclone™ SL 2.0Dacthal® FlowableDacthal® W-75 HerbicideDakota™Dakota™Dawn® HerbicideDefiniteDegree Xtra® HerbicideDegree Xtra® HerbicideDegree® HerbicideDepth Charge™Derigo® HerbicideDerive 75 DFDerive® 4LDetermine™ 4LDevour™Devrinol® 2-XTDevrinol® 50-DFDevrinol® 50-DF OrnamentalDevrinol® DF-XTDevrinol® DF-XT OrnamentalDiFlexx® DUODimension® 2EW Specialty HerbicideDimension® EC Specialty HerbicideDimension® Ultra 40WP Specialty HerbicideDimetric® DF 75%Dimetric® EXTDimetric® LiquidDintec Treflan® 4D HerbicideDirex® 4LDiscover® NGDismiss® CA HerbicideDistinct® herbicideDiuron 4LDiuron 4LDiuron 4LDiuron 4L (Drexel)Diuron 80Diuron 80 DFDiuron 80 WDG Weed KillerDiuron 80DFDiverge® SilkDiverge™ ECDog Fight™Double Check™Double HeaderDrexel Mes-O-Sate™DrillDrive® 75 DF herbicideDrive® XLR8 herbicideDryphosate 75SGDual II Magnum®Dual II MAGNUM® SIDual IIG MAGNUM®Dual MAGNUM®DuetDuet®DuPont Accent® QDuPont Matrix® SGDuramax® HerbicideDurango® DMA® HerbicideDurango® DMA® HerbicideDurus®Echelon® 4SC HerbicideEcomazapyr 2 SLEject® 4L Turf HerbicideEject™ 75DF Turf HerbicideElectra 5.6LEncompass™Endurance® HerbicideEnlist Duo™ Herbicide with Colex D TechnologyEnlite®Envive®Envive® HerbicideEnvoke®Envoke® HerbicideEnvoy Plus™ HerbicideEnvy™Envy™ IntenseEnvy™ Six MaxEptam® 20-G GranulesEptam® 7-E Selective HerbicideEquip™EsplAnade® 200 SCEsplAnade® 200 SCEsplAnade® EZEsplAnade® SureEssensaEstablish ATZ™Establish Lite™Establish™EtcetraEthotron™ SCEvade® 4 FLEverest® 2.0 HerbicideEverest® 3.0 AGEverest® 3.0 AG HerbicideEverest® 3.0 HerbicideEverpreX™Evik® DFEvinco™Evital® 5GExpert® HerbicideExtra Credit 5®Extreme® herbicideFacet® 75 DF herbicideFacet® L herbicideFallOut™ HerbicideFallow Master® BroadspectrumFarmer's First™ Acetochlor 7EC HerbicideFearlessFearless Xtra 5.6LFearless Xtra HerbicideFever™Fever™ HerbicideFierce® EZ HerbicideFierce® HerbicideFierce® MTZ HerbicideFierce® XLT Soybean HerbicideFinale®Finale® XL F-VM herbicideFinale® XL T&O herbicideFireBallFirestorm®FirstAct™Flexstar®Flexstar® GT 3.5Flumi® 51 WDGFlumi® SX HerbicideFlumigard™ HerbicideFlumioxazin 51% WDG (Redeagle)Flumioxazin 51WDG Select™FluridoneFoma™ 2.0Foresters'® Non-Selective HerbicideForfeit® 280ForrestForsyte™ 1.88 SLFour Power Plus®Foxfire™ HerbicideFramework® 3.3 EC HerbicideFreeHand® 1.75G herbicideFreeHand® CA 1.75G herbicideFrequency® herbicideFugitive®FulTime® HerbicideFulTime® NXTFusilade® DXFusilade® II Turf & OrnamentalFusion®G-Max Lite™ herbicideGaligan® 2EGaligan® H2O HerbicideGalvan®GCS Acetochlor 7ECGCS Atrazine 4LGCS Atrazine 90DFGCS MesoXtra HerbicideGCS Metola Plus 8ECGCS Pinoxaden 0.8ECGCS Quinclo 4GCS S-Metolachlor 82.4% ECGlory®Glory® 4LGly Star® 5 ExtraGly Star® GoldGly Star® K-PlusGly Star® OriginalGly Star® PlusGly Star® Pro Grass and Weed KillerGlyfine™ PlusGlyfos® Aquatic HerbicideGlyfos® X-TRA HerbicideGlyphogan® HerbicideGlyphogan® Plus HerbicideGlyphosate 4 PlusGlyphosate 5.4Goal® 2XL HerbicideGoal® 2XL HerbicideGoalTender® HerbicideGoalTender® HerbicideGoldSky® HerbicideGovee™GR1 HerbicideGR1™GR2Gramoxone Inteon®Gramoxone® SLGramoxone® SL 2.0Granite® GR HerbicideGranite® SC HerbicideGrapple™Grasp® SC HerbicideGrasp® Xtra HerbicideGuardsman Max® herbicideHABITAT® herbicideHalex® GTHamper™ HerbicideHamper™ II HerbicideHarbinger® Herbicide (241-337-34704)Harness® 20G HerbicideHarness® HerbicideHarness® Herbicide (Monsanto)Harness® MAX HerbicideHarness® MAX HerbicideHarness® XtraHarness® Xtra (Monsanto)Harness® Xtra 5.6 LHarness® Xtra 5.6LHarrow™HeadwinHelena Atrazine 4F HerbicideHelena Atrazine 90-DGHelena® PendimethalinHelmetHelmet MaxxHelmet SPCHelmquat 3SLHelosate® 75 SGHelosate® Plus AdvancedHerbivore® HerbicideHighcard™Hinge™Honcho® HerbicideHoncho® K6 HerbicideHoncho® K6 Herbicide (Monsanto)Honcho® PlusHoss® UltraHuskie® CompleteHyvar® XHyvar® XHyvar® X CropIgnite® 280 SLImazethapyr 2 SLImiFlex™Imitator® 18% ConcentrateImitator® 25% ConcentrateImitator® AquaticImitator® PlusImpact Core®Impact®ImpactZ®Imperium® Selective HerbicideImpose®Infantry™ 4LInfantry™ 90DFInflame™ 280 SLInflict™Instigate®IntensaIntensity Post- Emergence Grass Herbicide®Intensity® One Post-Emergence Grass HerbicideInterline® HerbicideIntermoc™Intrro®Karmex® DFKasai™KatagonKatana® Turf HerbicideKerb® 50-W HerbicideKerb® SCKerb® SC (RUP)Keystone® HerbicideKeystone® LA HerbicideKeystone® LA NXTKeystone® NXTKleenUp® Pro HerbicideKrovar® DF Crop HerbicideKrovar® I DFKrovar® I DF HerbicideKyber™LademLadem ATLandmark® XPLandmaster® BWLandmaster® II HerbicideLaramie 25DFLariat®Last Call™ Selective HerbicideLatir™Laudis® HerbicideLeadoff® HerbicideLeague® HerbicideLeague® MVP HerbicideLedger™ HerbicideLeopard™Lexar®Lexar® EZLiberty® 280 SLLiberty® 280 SL HerbicideLifeline®Lifeline® GTLightning® HerbicideLineage® Clearstand® HerbicideLinex® 4L Agricultural HerbicideLock Down™Lock Down™ SCLorox® DFLoyant®Loyant® CALumax®Lumax® EZLuxxur B HerbicideMad Dog®Mad Dog® 5.4Mad Dog® PlusMaestro® AdvancedMainline™Makaze Yield Pro®Makaze® HerbicideMarengo®Marengo®Marengo®Marengo® GMarengo® GMatador®Matador®-SMatrix® FNVMatrix® SGMauler™ HerbicideMaverick™ Corn HerbicideMaxtron™ 4SCMaxunitech Sulfentrazone 4 SC HerbicideMe-Too-Lachlor™Me-Too-Lachlor™ IIMe-Too-Lachlor™ MTZMe-Try-Buzin™ 4LMe-Try-Buzin™ 75DFMedal®Medal® ECMedal® IIMedal® II ATMedal® II ATZMedal® II ECMeso Star PlusMesoCore®MesoTryOne™ 4LMesoXtra HerbicideMetalicaMetalliS™ BDXMetalliS™ MTZMetalliS™ PFXMetolachlor + MesoATZMetolachlor 8EMetribuzin 4LMetribuzin 75Metribuzin 75DFMetricor™ 4FMetricor™ DFMetriflex 4SCMetrixxMetrixx 75DFMetrixx PlusMetrixx SCMicro-Tech®Mirage® (524-445-34704)Moccasin® MTZMoccasin™Moccasin™ II PlusMojave 70 EGMSMA 6 PlusMSMA 6.6MTZ Co-PackNektron™ SCNewpath® herbicide for CLEARFIELD® riceNextStep™ NG HerbicideNorthstar® HerbicideNortron® SCNoventa™ HerbicideNovixid®Nufarm Double O™ SPC HerbicideNufarm Imazapic 2SLNufarm Imazapic 2SL IVM HerbicideNufarm Imazuron™ HerbicideNufarm Leopard™ HerbicideNufarm Polaris® AC Complete HerbicideNufarm Polaris® AC HerbicideNufarm Polaris® HerbicideNufarm Polaris® SPNufarm Quinclorac SPC 75 DF HerbicideObey™ HerbicideObserve™ HerbicideOctivio™Octivio™ PulseOmni® Brand Clethodim 2 ECOmni® Brand Metribuzin 75 DFOpenSky®OpportunityOptero™OpTill® powered by Kixor® herbicideOpTill® PRO Herbicide (Liquid)OpTill® PRO powered by Kixor® herbicideOptogen™Orissa 4Ornamec® 170 Grass HerbicideOrnamec® Over-The-Top Grass HerbicideOryzalin 4 A.S. HerbicideOust® ExtraOust® ExtraOust® XPOust® XPOutflank™Outlook® HerbicideOverTime™ ATZ HerbicideOverTime™ ATZ Lite HerbicideOverTime™ ATZ Lite NXTOverTime™ ATZ NXTOverTime™ HerbicideOverTime™ NXTOxyfluorfen 2E HerbicideOxyStar® 2EOxystar® 4LOzone 3.0PacoPalace™ Selective HerbicidePanoramic® 2SLPanther® D HerbicidePanther® HerbicidePanther® MTZ HerbicidePanther® Pro HerbicidePanther® SC HerbicidePara-Shot 3.0Parallel® HerbicideParallel® PCS HerbicideParallel® PlusParamount® herbicideParaquat 43.2% SLParaquat ConcentrateParazone® 3SLParazone® 3SLParity™ HerbicideParrot™ 4LParrot™ DFPastora®Payback ATZPayload® HerbicidePayload® SCPemex™Pendulum® 2G granule herbicidePendulum® 3.3 EC herbicidePendulum® AquaCap™ herbicidePennant MAGNUM®PerfectMatch™ HerbicidePermit Plus®Perpetuo™ HerbicidePhenomenon™Phenomenon™ DuoPhoenix Hammerkop™ HydroCapPhoenix Harrier® 4LPhoenix Knighthawk®Phoenix Rook® 4LPhoenix Starfighter® 2GPhoenix Thrasher®Pin-Dee™ 3.3 ECPin-Dee™ 3.3 T & OPinaPindar® GTPiper™ HerbicidePlainview® SCPlateau® herbicidePoaConstrictor®Poast Plus® herbicidePoast® herbicidePortfolio® 4F CAPortfolio® 4F CaliforniaPowerFlex® HerbicidePowerFlex® HL HerbicidePraxisPraxis PlusPre-Pare® 70% WDGPre-San® Granular 12.5GPRE-Tector™ Plus ECPrefar® 4-EPrefix® HerbicidePrequel®Presidual™ HerbicidePrimeraOne® Prodiamine 4LPrimeraOne® Prodiamine 65WDG HerbicidePrimero®Primero® 40SCPrincep® 4LPrincep® Caliber 90® HerbicidePrincep® LiquidPriority 8EPriority MAPriority MesoPriority® GTPriority® MTZPrizeProClipse® 65 WDGProDeuce®Prodiamine 65 WGPrograss®Prograss® SCPromenade™Prometryne 4L HerbicidePromote™ProsePROSlam™ 4SCProvisia® herbicideProwl® 3.3 EC herbicideProwl® H2O herbicidePruvin® HerbicidePuma® 1ECPunchPurgatory™ 3 SLPursuit® herbicidePylex™ herbicidePyrimax™ 3.2 L HerbicidePysonex™ HerbicideQ-Ball™ HerbicideQ4® Plus Turf Herbicide Grassy & Broadleaf WeedsQuake™ HerbicideQuali-Pro® Expel Turf HerbicideQuik-Quat™Quincept®QuinStar TurfQuinStar®QuinStar® 4LQuinvac 75 DFRancor™ 4 FRancor™ 75 DFRanger PRO® HerbicideRanger PRO® Herbicide (Monsanto)Raptor® herbicideRascal® PlusRavine™Raze® Herbicide by WinfieldRazor Burn®Razor®Razor® ProRazor® Xtreme HerbicideRealm® QRealm® QRebelEX® CA HerbicideRebelEX® HerbicideReciteReckon™ 280SLRedEagle Clethodim 2ERedEagle Flumioxazin 51% WDG Specialty + Field (California)Refer® 280 SL HerbicideReflex®Regiment® CA HerbicideRegiment® EZ HerbicideRegiment® HerbicideRejuvra®Rejuvra™Rely® 280Rely® 280 HerbicideRequire® Q (mp)Resicore®Resicore® XLResist™ HerbicideResist™ HerbicideResolute® 4FLResolute™ 65WGResolve® DFResolve® QResolve® Q (mp)Resolve® SGRestraint™ herbicideRevitonRevulin® QRevulin® QRezilon®Rezilon®Rezult® B herbicideRezult® G herbicideRezuvant™ herbicideRhythm® HerbicideRiceBeaux®RiceBeaux®RiceEdge® 60 DFRiceOne CSRiceOne® CSRicePro®RiceShot 48 SFRiceShot®RiceShot® LCRicestar® HTRicestar® HT HerbicideRimfire® MaxRinde HerbicideRingside®Rixa™Ro-Neet® HerbicideRodeo® HerbicideRogue® SCRonstar® 50 WSPRonstar® FloRonstar® Flo HerbicideRonstar® GRoundup Custom®Roundup Custom® (Monsanto)Roundup PowerMAX®Roundup PowerMAX® 3 (Monsanto)Roundup PowerMAX® 3 HerbicideRoundup PowerMAX® HerbicideRoundup PowerMAX® IIRoundup PowerMAX® II (Monsanto)Roundup PRO® ConcentrateRoundup PRO® Concentrate (Monsanto)Roundup PRO® HerbicideRoundup PRO® Herbicide (Monsanto)Roundup PROMAX® HerbicideRoundup PROMAX® Herbicide (Monsanto)Roundup QuikPRO®Roundup QuikPRO™ (Monsanto)Roundup Ultra®Roundup WeatherMAX® (Monsanto)Roundup WeatherMAX® HerbicideRowel™ FX HerbicideRowel™ HerbicideRT 3® HerbicideRT 3® Herbicide (Monsanto)Rumble®Sage™Sahara® DG herbicideSalvusSapphire®Satellite® 3.3 herbicideSatellite® FlexSatellite® HydroCap herbicideScepter® 70 DG herbicideScoparia HerbicideScout™ HerbicideScrollOVR™Scroll™ 2 XLSe-Cure EC HerbicideSectagon-42® (RUP)Section® 2EC (1381-204)Section® 2EC (42750-72-1381)Section® Three HerbicideSedona®Select Max® Herbicide with Inside Technology™Select® 2 ECSelect® 2 EC HerbicideSemera® 51.0% WDGSemera™ SCSequence®Shadow®Shadow® 3ECShafen HerbicideShafen StarShar-Max Glyphosate 41% SLSharda Fluometuron 4SCSharpShieldex® 400SC HerbicideShowcase™ Specialty HerbicideShowdown® HerbicideSierra™ HerbicideSim-Trol® 4L Simazine Flowable HerbicideSim-Trol® 90DF Simazine Dry Flowable HerbicideSimazine 4LSimazine 4LSimazine 4L FlowableSimazine 90 WDGSimazine 90DFSimazine 90DF (Drexel)Sinate® HerbicideSinbar® WDGSinister™Slider®Slider® ATZSlider® ATZ LiteSmackdown™Snapshot® 2.5 TG Specialty HerbicideSnapshot® DG Specialty HerbicideSolanil 80EDFSolicam® DF HerbicideSolicam® DF HerbicideSolida® HerbicideSolida® HerbicideSolitare® HerbicideSonalan® 10G HerbicideSonalan® 10G HerbicideSonalan® HFP HerbicideSonalan® HFP HerbicideSonarOne® Aquatic HerbicideSonic® HerbicideSortie® HerbicideSortie™ ATZSortie™ ATZ LiteSparrow™Spartan® 4FSpartan® ChargeSpartan® EliteSpartan® FL 4FSpecticle® FloSpecticle® Flo HerbicideSpecticle® GSpiruS™Spyder® Extra Selective HerbicideSpyder® Selective HerbicideSquareOne® HerbicideStadia™Stalwart® 2WStalwart® 3WStalwart® C HerbicideStalwart® HerbicideStalwart® MTZStalwart® Xtra HerbicideStalwart® Xtra LiteStam® 80 EDFStam® 80 EDFStam® 80 EDF-CAStam® 80 EDF-CAStam® 80 EDF-CA Water Soluble PackagingStam® M4Stam® M4 HerbicideStaple® LXStatement™ HerbicideStatus® herbicideStaunch® IIStaunch™ HerbicideSteadfast®Steadfast® QSteadfast® QStealth CompleteStoren™Stout®Strada® XT2Strategy™StreliuS™ IIStringent™SufficeSulfentrazone 4LSulfin® 4SCSunphosate 41%Sunphosate 5 MAX (Wynca)SuperWHAM!®SuperWHAM!® 80 DF-CASuperWham!® CASuperWHAM!® CASuprend®SureGuard® HerbicideSureGuard® SC HerbicideSureStart® HerbicideSureStart® IISurflan® A.S. 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