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ENLIST WEED CONTROL SYSTEM2020 PRODUCT USE GUIDEEnlist Duo herbicide,used with Enlist corn and Enlist E3 soybeansCANADIAN EDITION

What you’ll find inside:The Enlist weed control systemStewardship Overview. 3Compliance Monitoring. 3Enlist cropsEnlist Corn Trait. 4Enlist E3 Soybean Trait. 6Enlist Duo HerbicideThe Benefits of a Program Approach Including Enlist Duo . 9Application. 10Field Sprayers. 11Boom Height. 11Spray Volume. 11Nozzle Selection. 11Spray Drift Management. 14Mixing Instructions. 16Tank Mixtures Corn.17Tank Mixtures Soybeans. 19Restrictions.21Recropping.21Record keeping.21Sprayer and Equipment Clean Out.22Patent Statement.28Technology Use Agreement.28Contact Us.292

Introduction to the Enlist weed control systemThank you for your purchase of a seed product that contains Enlist weed control system technology. The Enlistweed control system is composed of traits, herbicides and a Stewardship resource. The complete system isdesigned to work together, with Enlist herbicide-tolerant traits enabling the use of Enlist herbicides. To help get themost from the Enlist system, follow the Product label and the recommendations in this Product Use Guide.ICIDERERBSOHEURCETRAITSGEM ANAMENTStewardshipStewardship OverviewThis Product Use Guide (Guide) details the requirements and recommendations for the planting of Enlist corn,Enlist E3 soybeans and the proper use of Enlist Duo Herbicide featuring Colex-D technology. This Guide is not apesticide product label. It is intended to provide additional information and to highlight approved uses from specificproduct labels.Responsible use and stewardship of Enlist corn, Enlist E3 soybeans, and Enlist Duo herbicide are essentialto ensuring that these tools are effective and perform for years to come on your farm. Read and follow allprecautions and directions on the product label for Enlist Duo herbicide used on Enlist crops, as well as any otherpesticide products applied to the Enlist crops. As a grower planting Enlist corn or Enlist E3 soybeans, you must beboth familiar with and follow the Technology Use Agreement (Agreement) and this associated Guide.Always consult your trait provider’s technical guides before planting. ALWAYS READ AND FOLLOW PESTICIDELABEL DIRECTIONS. Please direct questions about this Guide or seed that contains Corteva Agrisciencetechnologies and traits to your seed provider or to the Solutions Center at 1-800-667-3852.Compliance MonitoringCorteva Agriscience will monitor compliance with the Technology Use Agreement and Product Use Guide(s)through surveys and on-farm assessments. You may receive a request to provide information about the locationof fields planted with Enlist crops and the herbicides applied to these fields. Failure to follow these stewardshiprequirements will result in action by Corteva, which may include additional education and training, monitoring, and/or loss of access to the technology.3

Enlist cropsEnlist CornThe Enlist corn trait confers tolerance to 2,4-dichlorophenoxyacetic acid “2,4-D” andaryloxyphenoxy propionate “-fop” herbicides, and is stacked with a glyphosate tolerancetrait in Enlist corn hybrids. This provides the benefits of tolerance to in-crop applications ofEnlist Duo herbicide to reduce weed competition. Enlist Duo herbicide and the use of otherherbicides registered for corn provide alternate modes of action to manage hard-to-controland resistant weeds as part of the management practices for Enlist corn.In addition to herbicide tolerance, some Enlist hybrids may contain Bt traits that confer insect protection.If you purchase hybrids that contain Bt traits, you must also follow applicable Insect Resistance Managementrequirements. Consult the Corn Product Use Guide for refuge requirements.HERBICIDE TOLERANCE OF ENLIST CORN HYBRIDSSMARTSTAX ENLIST POWERCORE ENLIST ENLIST ROUNDUPREADY 22,4-D olerantTolerant“-fop” antTolerantNot Tolerant1Not tolerantNot tolerantNot tolerantCYCLOHEXANEDIONE(“-dim”) HERBICIDESVolunteer corn controlEnlist corn is tolerant to 2,4-D choline, glyphosate and “-fop” herbicides, such as Assure II (quizalofop). It isrecommended that to control volunteer Enlist corn in soybeans, a cyclohexanedione “-dim” herbicide must be used(e.g., Select , Statue or Arrow All-in (clethodim) or Poast Ultra (sethoxydim)).1HERBICIDE TOLERANCESome Bt corn hybrids are available with Roundup Ready and LibertyLink herbicide tolerance traits, making them tolerant to over-the-top applications ofglyphosate and glufosinate-ammonium herbicides. Verify the weed control system before making over-the-top herbicide applications. Always read and follow labeldirections. Use of a herbicide over the top of a corn hybrid that does not contain the tolerance trait for the herbicide will cause crop damage.4

CoexistenceCorn is a naturally cross-pollinated crop, and a small amount of corn pollen movement to nearbyfields is not uncommon. You can take steps to reduce undesired pollen movement, including: Maintaining a non-corn buffer between corn fields containing biotechnology traits andconventional corn fields Not growing corn with biotechnology traits upwind (based on the prevailing wind directions)of other corn fields Discussing your cropping plans with your neighbours in advanceAuthorized herbicides with Enlist cornEnlist corn contains the patented gene that provides tolerance to 2,4-D and “-fop” herbicides.The Enlist trait is also stacked with the glyphosate trait in Enlist corn hybrids.Following burndown, Enlist Duo with Colex-D technology is the only herbicide containing 2,4-D that is labeledfor pre-emergence and post-emergence use with Enlist corn. Assure II herbicide (quizalofop) is the only fopherbicide expressly labeled for pre-emergence and post-emergence use with Enlist corn.Growers are NOT authorized to: Use 2,4-D products without Colex-D Technology in conjunction with Enlist crops Following burndown, use any phenoxy auxin herbicide-containing product (e.g., containing 2,4-D, 2,4-DB,MCPA, dichlorprop, LV6, MCPB, mecoprop) which is NOT expressly labeled for use in conjunction with Enlistcrops, including pre-emergent use Following burndown, use any AOPP herbicides (e.g., quizalofop, cyhalofop, haloxyfop, diclofop, fenoxaprop,fluazifop) not expressly labeled for Enlist corn on emerged Enlist corn Following burndown, use any non-registered pyridine auxin herbicides (e.g., triclopyr, fluroxypyr) on emergedEnlist corn5

Enlist E3 SoybeansEnlist E3 soybeans offer robust tolerance to 2,4-D choline, glufosinate and glyphosate.This allows farmers to use multiple modes of actions to obtain effective weedcontrol while minimizing the potential for the development of resistant weeds.Enlist E3 soybeans provide the benefits of tolerance to in-crop applications ofEnlist Duo herbicide and other herbicide products to reduce weed competition. Enlist E3 soybeans allowgrowers to use alternate modes of action to manage hard-to-control and resistant weeds as part of themanagement practices for Enlist E3 soybeans.ENLIST E3 2,4-D ntCoexistenceSoybeans are a naturally self-pollinated crop with very low risk of mixing by cross-pollination. If you wish to use ormarket Enlist E3 soybeans separately from general commodity use or identity preserved soybeans, fields should beplanted far enough away from other crops to prevent mechanical mixture during harvest.The transgenic soybean event in Enlist E3 soybeans is jointly developed and owned by Dow AgroSciences LLC and MS Technologies LLC.6

Authorized herbicides with Enlist E3 soybeansEnlist E3 soybeans contain the patented gene that provides tolerance to 2,4-D choline, glyphosate andglufosinate herbicides.Following burndown, Enlist Duo with Colex-D technology is the only herbicide containing 2,4-D that is labeledfor pre-emergence and post-emergence use with Enlist E3 soybeans.Growers are NOT authorized to: Use 2,4-D products without Colex-D Technology in conjunction with Enlist crops Following burndown, use any phenoxy auxin herbicide-containing product (e.g., containing 2,4-D, 2,4-DB,MCPA, dichlorprop, LV6, MCPB, mecoprop) which is NOT expressly labeled for use in conjunction with Enlist crops,including pre-emergent use Following burndown, use any pyridine auxin herbicides (e.g., triclopyr, fluroxypyr) on emerged Enlist Crops Apply any dicamba herbicide to Enlist E3 soybeans. Enlist E3 soybeans are not tolerant to dicamba, and severe cropinjury will occur.Seed Coat Colour Variation in Enlist E3 SoybeansIn addition to ease of use, exceptional weed control and high yield potential with Enlist E3 soybeans, farmers mayoccasionally see a seed coat colour variation. This colour variation in Enlist E3 soybeans is from naturally occurringsubstances found in soybeans. It typically appears as a light brown band connecting ends of the hilum and/orlight brown shadows on each side of the hilum. It can range from very slight to a darker tint and varies in frequency,geography, growing season (year-to-year) and position on the plant or within pods. The seed coat colour variationis not due to application of herbicides.Based on our years of study and experience, we’re confident in the performance and grain quality of Enlist E3 soybeans.To learn more about seed coat colour variation, call the Solutions Center at 1-800-667-3852 or your local Territory Manager.7

Enlist Duo HerbicideWeed control with Enlist Duo herbicideEnlist Duo herbicide with Colex-D technology combines the proven performance of 2,4-D choline and glyphosate in aconvenient, proprietary blend. Following burndown, Enlist Duo with Colex-D technology is the only herbicide containing2,4-D that is labeled for pre-emergence and post-emergence use with Enlist crops. Use of Enlist Duo over a crop thatdoes not contain the Enlist tolerance traits for the herbicides will cause crop damage. Verify the weed control system inyour field before making over-the-top herbicide applications. Always read and follow label directions.Rates of applicationUse 2.9 – 4.3 L/ha (1.2 L/ac to 1.74 L/ac) depending on the weeds present. Apply Enlist Duo herbicide when weeds areyoung and actively growing, per the label directions. The lower use rates will effectively control young, succulent growthof sensitive weed species. For less sensitive weed species, weeds at an advanced growth stage, or under conditionswhere control is more difficult, the higher use rate is required. It is recommended that for the widest spectrum of weedcontrol and to ensure control of glyphosate tolerant biotypes, the 4.3 L/ha (1.74 L/ac) rate should be applied.Enlist Duo Herbicide with Colex-D technologyCROPENLIST CORN AND ENLIST E3 SOYBEANSActive Ingredients2,4-D Choline and Glyphosate DMAModes of ActionGroup 4 and Group 9FormulationLiquid SolutionSignal WordWarningUse Rate In-SeasonApplication use rate range of: 2.9 to 4.3 L/ha (1.17 - 1.74 L/ac)Surfactants/OilsNot RecommendedApplication TimingPost-emergence to weedsDroplet SizeCoarse to extremely coarse spraySpray VolumeApply 50 to 200 L of spray solution per hectare (5 - 20 GPA) Recommend100 – 150 L/ha (10 - 15 GPA) to ensure thorough coverage*Read the Product Label for complete details.The product label for Enlist Duo herbicide contains the directions and recommendations for useover Enlist crops, such as: Application equipment requirementsProduct use directionsRestrictions and precautionsWeed management inform

of sensitive weed species. For less sensitive weed species, weeds at an advanced growth stage, or under conditions where control is more difficult, the higher use rate is required. It is recommended that for the widest spectrum of weed control and to ensure control of glyphosate tolerant biotypes, the 4.3 L/ha (1.74 L/ac) rate should be applied.