2018 NORTH DAKOTA WEED CONTROL GUIDE - Sbreb
W-2532018NORTH DAKOTAWEED CONTROLGUIDECompiled by:Rich Zollinger Extension Weed ScienceContributors:Mike Christoffers Research Weed Science, Weed GeneticsCaleb Dalley Research Weed Science, Hettinger R&E CenterGreg Endres Extension Area Agronomist, Carrington R&E CenterGreta Gramig Research Weed Science, Weed EcologyKirk Howatt Research Weed Science, Small Grains/Minor CropsBrian Jenks Research Weed Science, NC R&E Center, MinotClair Keene Extension Area Agronomist, Williston R&E CenterRod Lym Research Weed Science, Noxious/Invasive WeedsMike Ostlie Research Weed Science, Carrington R&E CenterTom Peters Extension Weed Science, Sugarbeet, NDSU/U of MNAndy Robinson Extension Agronomist, Potato, NDSU/U of MNAndrew Thostenson Extension Pesticide ProgramsHarlene H. Valenti Research, High Value CropsTHIS PUBLICATION SUPERCEDES ALL PREVIOUS ISSUES OF W-253 SUBJECTTO CONDITIONS UNDER "WEED GUIDE INFORMATION"www.ndsu.edu/weeds/JANUARY 2018
Table of h)Alfalfa, Legume forages . . . . . . . . . . . . . . . . . . . . . . . . 48-49 . . . . . . . . . . . . . 89 . . . . . . . . . . . . P1Barley. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14 . . . . . . . . . . . 80-81 . . . . . . . . . . C1-13Canola / Herbicide resistant, Mustard . . . . . . . . . . . . . . 42-43 . . . . . . . . . . . . . 86 . . . . . . . . . . . L1-3Chickpea / Garbanzo bean . . . . . . . . . . . . . . . . . . . . . . 36-37 . . . . . . . . . . . . . 85 . . . . . . . . . . . . H1Corn / Herbicide resistant . . . . . . . . . . . . . . . . . . . . . . . 18-24 . . . . . . . . . . . . . 82 . . . . . . . . . . . D1-8Dry bean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-33 . . . . . . . . . . . . . 85 . . . . . . . . . . . F1-6Flax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 . . . . . . . . . . . . . 86 . . . . . . . . . . . K1-2Lentil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-37 . . . . . . . . . . . . . 85 . . . . . . . . . . . H2-3Oat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Pea, Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-35 . . . . . . . . . . . . . 84 . . . . . . . . . . . G1-4Potato / Vine kill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-47 . . . . . . . . . . . . . 89 . . . . . . . . . . . N1-5Safflower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Small acreage crops: Buckwheat, Juneberry, Millet, Mint, Onion, Rye, Sorghum, Triticale - page 17Soybean / Herbicide resistant . . . . . . . . . . . . . . . . . . . . 25-29 . . . . . . . . . . . 83-85 . . . . . . . . . . E1-12Sugarbeet / Herbicide resistant . . . . . . . . . . . . . . . . . . . 44-45 . . . . . . . . . . . 87-88 . . . . . . . . . . M1-18Sunflower / Herbicide resistant . . . . . . . . . . . . . . . . . . . 38-39 . . . . . . . . . . . . . 86 . . . . . . . . . . . J1-5Wheat, Spring, Durum, Winter . . . . . . . . . . . . . . . . . . . 7-14 . . . . . . . . . . . 80-81 . . . . . . . . . . C1-13Wheat, Barley PRE/POST-Harvest . . . . . . . . . . . . . . . . . . 16Noncropland Weed ControlChemical fallow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-51CRP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-53CRP breakout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 . . . . . . . . . . . . . 87 . . . . . . . . . . . . R1Grass establishment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Lawn herbicides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Shelterbelt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Total Vegetation Control . . . . . . . . . . . . . . . . . . . . . . . . . . 67Special Weed Problems55-65Annual weed control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-93Bindweed, Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56-57 . . . . . . . . . . . . . 94Brome, Downy and Japanese . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Cinquefoil, Rough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94Curly dock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94Dandelion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94Foxtails (pigeongrass) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Horseweed (Marestail) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Knapweed: Diffuse, Spotted, Russian . . . . . . . . . . . . . . 57-58Kochia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91Lambsquarters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91Milkweed, Common . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 . . . . . . . . . . . 94-95Nightshade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92Narrowleaf hawksbeard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Noxious weeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Perennial weed control . . . . . . . . . . . . . . . . . . . . . . . . . 55-65 . . . . . . . . . . . 94-97Purple loosestrife or Lythrum . . . . . . . . . . . . . . . . . . . . . . 58 . . . . . . . . . . . . . 97Quackgrass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99Ragweed, Common, Giant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92Saltcedar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Spurge, Leafy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-61 . . . . . . . . . . . . . 97Starthistle, Yellow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57Thistles, Biennial: Bull, Musk, Plumeless . . . . . . . . . . . . . 64Thistle, Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62-63 . . . . . . . . . . . . . 94Toadflax, Dalmatian and Yellow . . . . . . . . . . . . . . . . . . . . 65Troublesome weeds in cropland and other areas . . . . . . . 69Troublesome weeds in pasture / rangeland . . . . . . . . . . . 68Volunteer Roundup Ready Crops . . . . . . . . . . . . . . . . . . 113Waterhemp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92-93Weed of the Year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132Wild buckwheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Wild oat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93Wormwood, Absinth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65Wormwood, Annual or Biennial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 932. . . . . . . . . . S1-14. . . . . . . . . . . . . T1. . . . . . . . . . . . S2. . . . . . . . . . . . . T4. . . . . . . . . . . . . T2. . . . . . . . . . . . . T5. . . . . . . . . . . . S3. . . . . . . . . . . . S6. . . . . . . . . . . . S7. . . . . . . . . . . . S8. . . . . . . . . . . . . T6. . . . . . . . . . . . S9. . . . . . . . . . . . S5. . . . . . . . . . T1-21. . . . . . . . . . . . T21. . . . . . . . . S10-11. . . . . . . . . . . . T20. . . . . . . . . . . . . T3. . . . . . . . . . . S12. . . . . . . . . . . . S1. . . . . . . . . . . S14. . . . . . . . . . . S13
Table of Contents (cont.)TableNarrativeGeneral(Pages)(Pages) (P-graph)Organic Matter Test . . . . . . . . . . . . . . . . . . . . . . . 70 . . . . . . A2TableNarrativeGeneral(Pages)(Pages) (P-graph)Abbreviations Used . . . . . . . . . . . . . . . . . . . . . . . . . 4Adjuvants . . . . . . . . . . . . . . . . . 128-130 . . . . . . 76 . . . . A5-6Annual Weed Control . . . . . . . . . . . . . . . . . . . 90-93 . . . S1-13Mixing order / Instructions . . . . . . . . . 76Mode of Action, Herbicides . . . . 100-101Backpack sprayer calibration . . . . . . . . . . . . . . . . 77 . . . . . A11Bioassay Instructions . . . . . . . . . . . . . . . . . . . . . 103 . . . . Y5-6Biological Weed Control . . . . . . . . . . . . . . . . . . . . 97 . . T20-21Breakdown, Herbicide . . . . . . . . . . . . . . . . . 102-103 . . . . Y1-4Perennial Weed Control . . . . . . . . 55-65 . . . 94-97 . . . T1-21Plant back interval (crops) . . . . . . . . . 6POST-Applied Herbicides . . . . . . . . . . . . . . . . . . . 70 . . . . . . A3POST Grass Herbicide Table . . . . . . 27Programs, Herbicide - Corn . . . . . 22-24- Soybean . . 30-31Prices, Herbicide . . . . . . . . . . . . 120-127Calibrating sprayers . . . . . . . . . . . . . . . . . . . . . . . 77 . . A11-12Carryover and Residues . . . . . . . . . . . . . . . 102-103 . . . Y1-14Corn Herbicides . . . . . . . . . . . . . . 18-24Crop plant back interval . . . . . . . . . . . 6Crop Rotation Restrictions . . . . 104-106Rain-Free Interval . . . . . . . . . . . . . . . 71Ratings, Weed Control . . . . . . . 113-119Soil Applied . . . . . . . . 114-115POST Applied . . . . . . . 116-119RR Volunteers . . . . . . . . . 113Resistant Weeds . . . . . . . . . . . . . . . . . . . . . . . 98-99 . . . . . X1Residues, Herbicide . . . . . . . . . . . . . . . . . . 101-103 . . . Y1-14Residue Laboratories . . . . . . . . . . . 108Restricted Use Herbicides . . . . . . . . . . . . . . . . . . . 5Rotation Restrictions (crops) . . . 104-106RR crops, volunteer control . . . . . . 113Drift, Spray and Vapor . . . . . . . . . . . . . . . . . . . . . 76 . . . . . . A7Emergency Information . . . . . . . . . . . . . 5, Back pageEnvironment, Effect on Herbicides . . . . . . . . . . . . 70 . . . . . . A3Fall-Applied Herbicides . . . . . . . . . . . . 6 . . . 78-80 . . . B1-12Feeding Restrictions . . . . . . . . . 110-112Field Bioassay Instructions . . . . . . . . . . . . . . . . . 103 . . . . Y5-6Formulations, Herbicide . . . . . . 120-127Soybean Herbicide Premixes . . . . 30-31Spray Drift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Sprayer Cleanout . . . . . . . . . . . . . . . . . . . . . . . . .Sprayer Water Quality . . . . . . . . . . . . . . . . . . . . . .Surfactants . . . . . . . . . . . . . . . . 128-130 . . . . . .Surfactants allowed in water . . . . . . 128Glyphosate . . . . . . . . . . . . . . . . . . . . . . . . . . . 71-73 . . . . . . A4Grasses, POST Herbicide Chart . . . . 27Grazing Restrictions . . . . . . . . . 110-112Hand-held sprayer calibration . . . . . . . . . . . . . . . . 77 . . A11-12Hard Water Antagonism . . . . . . . . . . . . . . . . 75, 131 . . . . . . A6Haying Restrictions . . . . . . . . . . 110-112Herbicide Breakdown, Factors . . . . . . . . . . 102-103 . . . . Y1-4Herbicide Carryover . . . . . . . . . . . . . . . . . . 102-103 . . . Y1-14Herbicide Compendium . . . . . . 120-127Herbicide Formulations . . . . . . . 120-127Herbicide Incorporation . . . . . . . . . . . . . . . . . . . . . 70 . . . . . A1Herbicide Mode of Action . . . . . 100-101Herbicide, POST Grass Chart . . . . . 27Herbicide - Corn . . . . . . . . . . . . . . 18-24- Soybean . . . . . . . . . . . 25-31Herbicide Prices . . . . . . . . . . . . 120-127Herbicide Rain-Free Interval . . . . . . . 71Herbicide Resistant Weeds . . . . . . . . . . . . . . . 98-99 . . . . . X1Herbicide Storage Temps . . . . 70 (Web)75 . . . . . .76 . . . . . .75 . . . . . .74 . . . . . .A7A8A6A5Volunteer control, RR crops . . . . . . 113Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . 75,129 . . . . . . A6Weed Control, Annual Weeds . . . . . . . . . . . . . 90-93 . . . S1-13Weed Control, Perennial Weeds . . 55-65 . . . 94-97 . . . T1-21Weed Control Ratings . . . . . . . . 114-119Soil Applied . . . . . . . . 114-115POST Applied . . . . . . . 116-119RUR volunteer crops . . . . 113Weed of the Year . . . . . . . . . . . . . . . . . . . . 132-133Weed Resistance . . . . . . . . . . . . . . . . . . . . . . 98-99 . . . . . . X1Weed Guide - How To Use . . . . . . . . . . . . . . . . . . . 4Weed Guide - General Information . . . . . . . . 4-5, 70Wick Application . . . . . . . . . . . . . . . . . . . . . . . . . . 77 . . . . . A10Incorporation of Herbicides . . . . . . . . . . . . . . . . . . 70 . . . . . A12017 Updates . . . . . . . . . . . . . . . . . . . . . . . 134-135Laboratories for herbicide residue . 108Laboratories for water quality . . . . . 131Names, Herbicide . . . . . . . . . . . 120-127Noxious Weeds of ND . . . . . . . . . . . . . . . . . . . . . 553
WEED GUIDE INFORMATIONThe information in this guide provides a summary ofherbicide uses in crops grown in North Dakota and is basedon federal and state herbicide labels, research at ND Ag.Experiment Stations, and information from the North DakotaDepartment of Agriculture.ALWAYS READ AND FOLLOW LABEL DIRECTIONS.Instructions for registered uses of herbicides are given oncontainer labels. The label is the final guide and should bestrictly followed. The information in this guide only appliesto North Dakota because some herbicide uses are allowedonly by supplemental or specific ND labeling. Labelpossession is required at the time of application.This bulletin is provided for your information. North DakotaState University or its officers or employees make noclaims, representations, or guarantees as to productperformance nor accept responsibility for results from usingherbicides. See legal disclaimer on the next page.Below is information to aid in using this guide:Herbicides. Herbicides in tables are listed by trade namefollowed by common name in parenthesis except whereseveral brands are available. Contact chemical suppliersand the ND Dept of Ag for new label information.Rates. Rates in tables are based on broadcast applicationand are expressed according to formulated product per acrewith active ingredient (ai) or acid equivalent (ae) per acregiven in parentheses. Commercial formulations of the sameai may vary in concentration.For example, a pint of 4 lb ae/gal 2,4-D contains 0.5 lb whilea pint of 6 lb ae/gal 2,4-D contains 0.75 lb ora quart of 3 lb ae/gal glyphosate contains 0.75 lb while aquart of 4.5 lb ae/gal glyphosate contains 1.125 lbs.What is the difference between ai and ae? The ai of glyphosate is theweight of both glyphosate acid plus the salt formulated with the glyphosatemolecule. The acid equivalent (ae) of glyphosate is only the weight ofglyphosate without the salt. The label of commercial products list bothactive ingredient (ai) and inert ingredients. Inert ingredients are notphytotoxic but are used to create stable formulations and to aid inapplication, herbicide retention, deposition, and absorption. The activeingredient of some herbicides are formulated with salts or esters (SeeHerbicide Compendium). Glyphosate is formulated at differentconcentrations, as pure acid, and with five salts, isopropyl amine (ipa),dimethyl amine (dma), ammonium, diammonium (2(NH3), and potassium(K). The salt formulated with herbicide molecules does not contribute toweed control. Glyphosate formulated at different concentrations and withdifferent salts require using acid equivalent (ae) when calculating rates.The following table gives the relationship between ae and active ingredient(ai).Table. Glyphosate product rates based on ae and ai formulationconcentrations.Rate as acid equivalent (ae)0.751.1251.52.25lb ae or ai/gallon------------------- fl oz/A ------------------3 lb ae 4 lb ai 324864963.75 lb ae 5 lb ai 25.638.451.276.84 lb ae 5.4 lb ai 243648724.17 lb ae 5.1 lb ai 2334.546694.5 lb ae 5.5 lb ai 21.33242.6644.72 lb ae 6.3 lb ai 20.330.540.7615 lb ae 6.1 lb ai 19.228.838.457.6Weed Control Ratings. Herbicide effectiveness ratings listed in tablesshow general comparative ratings based on field observations. Weedcontrol may be equal or greater than what is indicated in the table underfavorable conditions or may be reduced and unsatisfactory may result inunfavorable conditions.Abbreviations UsedUnits of Measurementoz ounce (16 oz/lb)fl oz fluid ounce (128 fl oz/gal)pt pint (8 pt/gal)gal gallonae acid equivalentai active ingredientconc concentrationv/v volume/volumelb, lb/gal pound, pounds/gallongpa gallons per acreType of ApplicationEPP Early preplantPPI Preplant incorporatedPRE PreemergenceEPOST Early postemergencePOST PostemergencePOST Directed Postemergence directed Aerial application prohibitedHerbicide Group NumberingHerbicide namenumber 1-30 herbicide site of action group - seepages 100-101Types of FormulationDF Dry flowableEC Emulsifiable concentrateF FlowableG GranuleME Micro-encapsulatedOD Oil dispersionS/SL Solution/Soluble LiquidSC Suspension “Suspo” concentrateSE Solution emulsionSG Soluble granuleWDG/XP Water dispersible granuleZC Suspension of microcapsules and solid fine particlesMiscellaneousACCase Acetyl CoA carboxylaseALS Acetolactate synthaseAMS Ammonium sulfateDAA Days after applicationIMI ImidazolinoneMSO Methylated seed oilNIS Nonionic surfactantOM Organic matterPHI Preharvest intervalRUP Restricted Use PesticideSU SulfonylureaUAN Urea ammonium nitrate4
GENERAL INFORMATIONLEGAL DISCLAIMERThe weed control suggestions presented in this guide arebased on Federal label clearance, on information obtainedfrom the North Dakota Agricultural Experiment Station, andreports in North Dakota Weed Control Research.CAUTION: Instructions for registered uses of herbicides aregiven on container labels. Read and follow labelinstructions carefully. Pesticide labels supersederecommendations given in this guide. Weed control suggestions in this guide are based on the assumption that allherbicides mentioned will continue to have a registered labelwith the Environmental Protection Agency. This guide maycontain recommendations for herbicides that are labeledonly for North Dakota. The user of any pesticide mustpossess a copy of the label at the time of application. Statelabels can be obtained from chemical dealers or distributorsor found on the NDDOA web site at:http://www.kellysolutions.com/ndUse pesticides only on registered crops. Someformulations of an active ingredient may not be labeled forcertain uses. Federal law makes liable for seizure any rawagricultural commodity that possesses a pesticide residuefor which no exemption or tolerance has been established orthat exceeds the tolerances established by the Food andDrug Administration. Persons using pesticides in a mannercontrary to label instructions are subject to penalty underfederal and state laws. North Dakota State University or itsofficers or employees makes no claims or representationsthat the chemicals discussed will or will not result in residueson agricultural commodities and assume no responsibility forresults from using herbicides.USE PESTICIDES ONLY AS LABELED.Pesticide Labeling and RegistrationNo pesticide may be sold or used in the United States untilthe U.S. Environmental Protection Agency (EPA) hasregistered and approved the product use and the labeling.Canadian and other foreign labeled pesticides may not beused in the United States until registered by the EPA.TYPES OF PESTICIDE REGISTRATIONSFederal EPA Registrations, also known as 3e and 2eelabels, are the most common and widely used type ofpesticide registration. Product labels of pesticides beingapplied must be at the application site during the time ofapplication. Aerial applicators must have the label at theloading site.Section 24(c) Registrations, also known as (SLN) StateLocal Needs registrations:- are state-specific registrations issued by states- are used to address a special local need- must prove there is an existing or imminent pest problemfor which a federally registered pesticide is not available- can be used to address pest resistance management.SLN registrations can be used to register additional uses oradd limitations for a federally registered pesticide, likeadding application sites, pests, or alternate control methodsto those listed on federally registered labeling. SLN labelsare initiated by the ND Department of Ag and must beapproved by EPA.Supplemental labeling must be provided for each SLN registration.Applicators must have the SLN label and federal label in their possessionat application. These registrations are legal only in the state or local areaspecified in the labeling.Section 18 “Emergency” and “Crisis” exemptions from FIFRA allowsthe unregistered use of a pesticide to address an emergency pest situationand are used when a crisis pest situation:- is an emergency and non-routine- has no or ineffective alternative management tools and- is severe and can be documented to cause yield or economic loss( 20%) on the specified crop.Both types of exemptions from registration allows use of a pesticide for anon-registered purpose for a specified period of time. ND “Emergency”Section 18 exemptions are registrations initiated by the NDDA, areapproved by the EPA, and can be declared if both federal and SLNregistrations are not or cannot be enacted in time to prevent the condition.In rare occasions, when time is critical and the emergency is acute, NDDAcan declare a "Crisis" exemption without written approval of EPA. TheNDDA informs EPA of the condition prior to the action and allows EPA tosupport the state action. This process usually takes 10 to 14 days tocomplete. The duration of a “Crisis” exemption (14 to 21 days) is shorterthan an “Emergency” exemption. If an “Emergency” exemption is beingreviewed by the EPA at the time the “Crisis” exemption is declared theEPA may elect to grant the “Emergency” exemption and increase theperiod of duration. An applicator must possess federal labels and Section18 exemption labeling at application.RESTRICTED USE PESTICIDES (RUP)EPA categorizes pesticides as either unclassified (general use) orrestricted. Restricted-Use Pesticides (RUP) are pesticides that cancause harm to humans or environment and must be applied by certifiedapplicators. Only certified dealers may sell RUPs and only certifiedapplicators may purchase, or apply an RUP. Private andcommercial/public applicators must record certain information for allpesticide applications.RESTRICTED USE HERBICIDES:All products and premixes containing the active ingredients listed beloware restricted use pesticides. See Mode of Action table in Section X1.Atrazine See Mode of Action #5Isoxaflutole See Mode of Action #27Paraquat See Mode of Action #22Picloram See Mode of Action #4Sulfuric acidBrand names of other RUP:Amitrole-T, Cytrole (amitrole)Dicamba: Engenia, Fexapan, XtendiMax. See Mode of Action #4Husky Complete See Mode of Action #2, 6, 27Kerb 50W (pronamide)SAFETY AND EMERGENCY PHONE NUMBERS:ND Poison Control Line:800 222-1222ND Emergency Assistance Line:800 472-2121Report pesticide incident to NDDA:701 328-22325
CHEMICAL WEED CONTROL FOR FIELD CROPSHRS / Durum axField peaDry beanCornChick pea / LentilCanolaBarleyAlfalfaRate/AaSee paragraphPlant-back Interval for Fall, Pre-Plant, and PRE Herbicides------------------------------------- months before planting (d days) ---------------------------------0.5 lb aiB310117d11111115d1101 lb aiB3101114d11111111100.5 lb aiB310117d1111117d1102,4-D4 ester1 lb aiB3101114d1111111110E-99 / Weedone 65041 lb aiB3101114d11111115d110Aim140.5 to 1 fl ozB40000000000N/R0N/R00Afforia2,2,142.5 - 3.75 ozE5 3-4a 3-4a 4-12a 4-12a .5-1a 3-4a 3-4a 3-4a 4-5a 4-12a 3-4a 1-7da 4-10a 45da 1-2aAlluvex2,21.5 ozE51891818010101091181018109Anthem Flex14,152.5 - 4.5 fl ozD610111860116181141801241Autumn Super2,20.5 ozB5Apply post-harvest in fall and plant only corn the next spring.Banvel4*a1 ptB6 NCS 3d/oz NCS NCS 0a NCS NCS NCS 3d/oz NCS NCS 45 d NCS NCS 3d/oz1 to 2 ptB6 NCS NCS NCS NCS 0a NCS NCS NCS NCS NCS NCS 90 d NCS NCS 3d/oz5,15Boundary2 - 3.5 ptE6 4.58128121212812012018128Clarity4*a8 fl ozB6422 d440a44422 d4444422 d16 fl ozB6644 d660a66644 d6666644 d15Dual Magnum1 - 2 ptF344.5120000124.5000004.5021.5 .5-2a 1.5 1.5 1.5 1.5 1.5 1.5 7dac2 0-2ae 0Express / tribenuron2* Labeled rates E5 1.5Facet 4L4,2622 fl ozB10 24b 1010 24b 10 24b 24b 24b 10 24b 24b 24b 24b 24b0Fierce14,153 ozD6101118 11/6a 7da116181141801541Glyphosate9*0.75 - 3 lb ae B2,8 000000000000000Harmony/thifensulfuron2*Label rates E5 1.501.5 1.501.5 1.6 1.501.5 1.501.5 1.5032 - 43 fl ozB9670d06066670d 70d6006a70dLiberty10Label ratesB1100N/R N/R000N/R N/R000000Paraquat22* - RUPPre-Pare20.3 ozC724992411911911999990/4Select/clethodim1*4 - 16 fl ozE20100 6d-1a 0001000001Sequence9,152.5 - 3.5 ptA444.5 NCS 000004.50 NCS 0 NCS 04.5Sharpen141 fl ozB12404004040440f4401.5 fl ozB125050/1050505514df5505502 fl ozB125050/105050551f66NR3 fl ozB126062/306260662fSpartan Charge14,143 - 10.2 fl ozE11 1242404001212412024b04aa2 ozE124343/6 7d333443041a 14dValor14 tillageaa14da- tillage2 ozE128383/6 7d333883081aa tillage3 ozE125464/7 14d-14445540522aaa- tillage3 ozE12 104124/7 14d-14441010401022aVerdict14,155-18 fl ozB12 NCS NCS NCS NCS 0 NCS NCS NCS NCS NCS NCS 0-4 NCS NCS NCSZidua151 ozD61011124/601141811418012402 ozD6101112601161811418012413 ozD6101115601161811418015444 ozD610181880118181841841546Actual glyphosate product rates based on acid equivalent (ae) and active* Or generic equivalent.Herbicide namenumber 1-30 herbicide site of action - see ingredient (ai) formulation concentrations - Refer to page 4 for more information.0.75 lb ae 1.125 lb ae 1.5 lb ae 2.25 lb ae 3 lb aepages 100-101.a Refer to label for approved rates and restrictions.lb ae lb ai------------------------------ fl oz/A -----------------------------b bioassay3 4 32486496128c3.75 5 25.638.451.276.8102.4 Soybean 1 day before planting at 0.25 oz SG 5.4 2436487296 7 days before planting at 0.3 to 0.5 oz SG 44.17 5.1 2334.5466992.1d days before plantinge21.33242.66485 ExpressSun sunflower 0 days at 0.25 to 0.5 oz SG 4.5 5.5 f20.330.540.76181.4 Soils must be medium to fine texture with 2% OM. 4.72 6.3 5 6.1 19.228.838.457.676.8NCS Next cropping seasonNR Not registered2,4-D4 amine6
CHEMICAL WEED CONTROL FOR FIELD CROPSHard Red Spring and Durum Wheat, Winter Wheat and BarleyHerbicideProduct/A(ai/A)WeedsWhen to ApplyRemarks and ParagraphsRefer to page 6 for additional Fall, Early Preplant, and PRE Herbicides.Soil-Applied HerbicidesSpring: HRSW,Durum and Barley.Apply before orafter seeding.PPI 3 or more daysbefore seeding.Application before seeding: PPI with field cultivator setat 4 inches deep.Two pass incorporation is recommended.Application after seeding: Apply before kernel sproutsexceed 0.5 inch in length and incorporate with harrowsset more shallow than seed. A1-2 B1-2 C1 C8 S14Spring:PPI.FOR BARLEY ONLY.Incorporate twice 2 to 3 inches deep.A1-2 B7 C1 C13 Y15Far-Go(triallate8)HRSW & DURUM. Wild oat.1 qt / 10 lb 10G(1 lb)BARLEY:1.25 qt/12.5 lb 10G(1.25 lb)Treflan /generic trifluralin31 pt 4EC5 lb 10G(0.5 lb)Not forWinter Wheat4 lb 10G(0.4 lb)FOR DURUM WHEAT ONLY.For foxtail suppression only.A1-2 B7 C1 C13 S4 X1 Y153.5 to 4 lb 10G(0.35 to 0.4 lb)FOR HRSW ONLY. For suppression of foxtail only.Use west of Hwy 3 only.A1-2 B7 C1 C13 S4 Y15Foxtail.1 pt 4E(0.5 lb)Spring:After seeding.1 pt 4E5 lb 10G(0.5 lb)Incorporate once in fall within 24 hours afterFall:After September 1 application. Keep spring incorporation depth moreshallow than fall. Stand reduction may occur.until freeze-up.A1-2 B1-2 B7 C1 C13 S4 Y153.5 to 5 lb 10G(0.35 to 0.5 lb)Plant 2 to 2.5 inches deep. Incorporate shallow twicewith flex-tyne or diamond harrow 1 to 1.5 inches deep.A1-2 B7 C1 C13 S4 Y15FOR HRSW AND DURUM ONLY. For foxtailsuppression only. A1-2 B1-2 B7 C13 S4 Y15Anthem Flex(pyroxasulfone &carfentrazone14,15)Not for barley ordurum2 to 4.5 fl oz SC(1 to 2.25 oz)Pre: Foxtail andpigweed.POST: Broadleafweeds less than 2inches.PRE to 4th tiller.PRE requires precipitation for activation. Sequentialrain events will improve weed control. Adjust rate forsoil type. Add NIS at 1 qt/100 gal or PO at 1-2 pt/A UAN or AMS.C1 S4 S8 S11 Y15Olympus(propoxycarbazone2)Not for barley ordurumV. Long ResidualHRWW.0.6 oz WDG(0.42 oz)HRSW.0.2 oz WDG(0.14 oz)Japanese anddowny brome,mustard andpigweed species.PRE.Add NIS at 1 qt/100 gal for control of emerged species.Maximum propoxycarbazone rate per year allowedfrom Olympus or with combined products is 0.84 ozai/A in winter wheat or 0.28 oz ai/A in spring wheat.C1 C12 S2 Y2 Y5 Y15Pre-Pare(flucarbazone2)Not for barley ordurumShort to LongResidualHRSW.0.2 to 0.3 oz WDG(0.14 to 0.21 oz)G. foxtail, mustard Preplant within 10and pigweeds. Soil days of planting orPRE.residue maycontrol y. foxtail,wild oat, Japaneseand downy brome.Add NIS at 1 qt/100 gal for control of emerged species.Maximum flucarbazone rate per year allowed from PrePare with combined products is 0.43 oz WDG.A1 C7 S2 S4 Y2 Y5 Y15Quelex(halauxifen4 &florasulam2) Shortto Long Residual0.55 to 0.75 ozWDG(0.055 to 0.075 &0.055 to 0.075 oz)Preplant untilPre: Smallemerged broadleaf cracking.weeds.PRE requires precipitation for activation. Add NIS at 1to 2 qt/100 gal.A2 C1 S6 Y157
Hard Red Spring and Durum Wheat, Winter Wheat and BarleyHerbicideProduct/A(ai/A)WeedsWhen to ApplyRemarks and Paragraphs1.5 to 3 pt ACS(0.7 to 1.4 lb)Foxtail and somesmall-seededbroadleaf weeds.Wheat:1- to 3-leaf.Soil residue provides PRE control of weeds. Does notcontrol emerged weeds. Adjust rate for soil type.Allow a 60 day PHI. Refer to label for tank-mixtures.A1-2 B1-2 B7 C1 C13 E10 Y151.25 to 4 fl oz SC(0.65 to 2 oz)Some smallseeded weeds.Wheat:Emergencethrough 4th tiller.Soil r
W-253 2018 NORTH DAKOTA WEED CONTROL GUIDE Compiled by: Rich Zollinger Extension Weed Science Contributors: Mike Christoffers Research Weed Science, Weed Genetics Caleb Dalley Research Weed Science, Hettinger R&E Center Greg Endres Extension Area Agronomist, Carrington R&E Center Greta Gramig Research Weed Science, Weed Ecology Kirk Howatt Research Weed Science, Small Grains/Minor Crops
3.2 Chemical Weed Control 10 3.3 Thermal Weed Control 14 3.4 Biological Weed Control 15 4.0 Natural Areas Weed Management 16 4.1 Purpose 16 4.2 Limitations 16 4.3 Study Area 16 4.4 Weed Management Site Prioritisation 18 4.5 Weed Monitoring 20 4.6 Weed Prevention 22 4.7 Weed Control 24 4.8 Partnerships 28 5.0 Parks and Urban Landscaping
control, weed control, weed control '. Of course there are other important tasks, but weed control is surely one of the most vital! It is important to achieve good weed control in the 1m2 around each seedling. However the amount of ground disturbance should be kept to a minimum as open ground is an invitation to fresh weed establishment.
A guide to spring weed control Spring weed control in established pasture There are three key steps to effective spring weed control in established pasture - timing, weed identification and product selection. 1. Timing One of the most common mistakes made with spring weed control is spraying too late.
Introduction to Weed Science and Weed Identification . Definition of a Weed A plant growing where it is not wanted (Oxford Dictionary) Any plant or vegetation, excluding fungi, interfering with the objectives or requirements of people (European Weed Science Society)
Cultural and mechanical weed control emove light or spotty weed infestations by hand-hoeing or R spot cultivation to prevent spreading weed rhizomes, roots, or seed. hen plowing perennial weeds, take care to prevent trans W - porting and spreading plant parts to other areas of the field. se weed-free planting seed to prevent weed infestations in U
weed control strategies in the best possible way with the goal of maintaining weed densities at manageable levels while preventing shifts in weed populations to more difficult-to-control weeds. Combining as many of the following practices as possible will allow you to design an IWM program: † Avoid weed establishment; eliminate individual .
Weed control in GraSS and ForaGe cropS Table 1 showing the cost of replacing lost grass production on 1ha with high energy concentrates ( 270/tonne) as a result of weed infestation. Table 2 showing lost sales /ha (2012 prices) from 10% weed infestation due to reduction in stock carrying capacity. Cost of weed infestations Effects
Anne Harris Sara Kirby Cari Malcolm Linda Maynard Renee McCulloch Maria McGill Jayne Grant Debbie McGirr Katrina McNamara Lis Meates Tendayi Moyo Sue Neilson Jayne Price Claire Quinn Duncan Randall Rachel Setter Katie Stevens Janet Sutherland Katie Warburton CPCet uK and ireland aCtion grouP members. CPCET Education Standard Framework 4 v1.0.07.20 The UK All-Party Parliament Group on children .
