THE PENNSYLVANIA STATE UNIVERSITY

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1 THE PENNSYLVANIA STATE UNIVERSITY 2014 Herbicide Field Trials - Volume 24 Final Report Dwight D. Lingenfelter next to Palmer Ameranth, male right, female left. Dr. William S. Curran Dwight D. Lingenfelter Department of Plant Science The Pennsylvania State University University Park, PA Dayton Spackman, Editor

2 TABLE OF CONTENTS 2014 Penn State Agronomy Weed Trials Foreward iv Methods.vi Weather Data Russell Larson Research and Education Center (Rock Springs) vii Southeast Area Research and Extension Center at Landisville x Abbreviations and Codes...xiii Herbicides Included in the 2014 Trials xiv Russell Larson Research and Education Center (Rock Springs) Agronomy Farm Trials Corn Bicyclopyrone: Acuron Herbicide Compared to Competitive Standards in Reduced Till Corn (RSCNQS114) HPPD Herbicides: Corvus, Balance Flexx, Capreno, and Impact Programs in Reduced Till Corn (RSCNQS214) BASF Overlapping Residual Programs in Reduced Till Corn (RSCNQS314) Monsanto Crop Protection Market Development Corn Trial (RSCNQS414) Anthem and Anthem ATZ PRE & EPOST Programs in NoTill Corn (RSCNQS514) DuPont and Valent Burndown & Residual Programs in No Till Corn (RSCNQS614) DiFlexx & Dicamba Comparison Programs in Reduced Till Corn (RSCNJ2E214).. 65 Evaluation of Standard Programs from Dow (Keystone NXT, SureStart II), Dupont (Instigate), and Gowan(Yukon) (RSCNJ2E314)..71 i

3 Effect of herbicide and application timing on rye burndown and corn injury (RSCNSN114) Interseeder and Residual Herbicides (RSCNARS114) Soybean Balance Bean Programs in Balance GT Soybeans (RSSYNP5114).97 Herbicide Programs in Roundup Ready 2 Xtend (dicamba-tolerant) Soybeans in Reduced Till (RSSYNP6114) BASF - Overlapping Residuals in Soybean Herbicide Programs (RSSYNP6214) DuPont, Dow and Valent Residual Prpgrams in RR Soybean (RSCNNP6314) DuPont Burndown and Residual Programs in No Till Soybeans (RSSYJ2M114) Anthem, Authority, and Fierce Burndown & Residual Programs for NoTill Non-GMO Soybeans (RSSYJ2M214) Programs featuring Fierce, Cobra, Authority, Cadet, and other PPOs in Soybeans (RSSYJ2M314) Sorghum Herbicide Programs in Sorghum containing the Inzen Z (ALS-res,) Trait (RSSRJ2E114) ii

4 Southeast Area Research and Extension Center at Landisville Corn Syngenta and Dow Shoot Out with Competitive Standards in Reduced Till Corn (LVCNYN1) Competitive Non-Glyphosate Herbicide Programs in Reduced Till Corn (LVCNYN2) Soybean Fall Burndown of Marestail and Winter Annuals before Soybean (LVSYFN1).235 Monsanto Market Development Soybean Protocol in NoTil (LVSYFN2) Competitive Herbicide Programs in Non-GMO NoTill Soybeans (LVSYFN3) Tricor Tankmixes in Spring Burndown Programs in No Till RR Soybeans (LVSYFN4) Liberty 280 Programs in NoTill Liberty Link Soybeans (LVSYFN5) Other Control of Marestail (Horseweed) and Other Winter Annual Weeds in Wheat (LVWHEAT)..270 iii

5 Foreword This report is a summary of the 2014 herbicide evaluation studies conducted by the Department of Plant Science at Penn State University. The purpose of this report is to inform colleagues, industry cooperators, and other interested persons of our field research results. Final copies of commercial advertisements that will contain data from these results are subject to the authors approval before publication. The information within this report does not constitute a recommendation or endorsement of any product or rate. Apology is expressed for any inadvertent errors which may be found. Weed control recommendations are available through Penn State Cooperative Extension and Outreach services. The following individuals contributed to the Penn State University Department of Plant Science herbicide evaluation program. Rock Springs Research Farm Scott Harkcom, Farm Mgr. Mark Antle Jim Breining Corey Dillon George Dills Jeff Metz S.E. Area Research and Extension Center Alyssa Collins, Farm Mgr. Jim Bollinger John Stepanchak Weed Science Technical Crew Mark Dempsey Dayton Spackman John Wallace (Postdoc) Students Katherine Caswell (Graduate) Clair Keene (Graduate) Jake Batts (Undergrad) Audrey Davis (Undergrad) Lalita Limpichart (Undergrad) Kaitlyn Rimol (Undergrad) Erin Trouba (Undergrad) Back iv

6 Thanks to the following agricultural organizations for their support of the Weed Science Program in the Department of Plant Science at Penn State University: AMVAC Chemical Corporation BASF Corporation Bayer CropSciences Dow AgroSciences Company DuPont Pioneer FMC Corporation Gowan Monsanto Chemical Company (and Asgrow and Dekalb Seeds) Syngenta TA Seeds UPI Valent WindField Solutions Special thanks to: PA Vegetable Marketing and Research Program If you have questions or comments regarding this summary, please let us know. Sincerely, William S. Curran, Professor of Weed Science Dwight D. Lingenfelter, Program Development Specialist Back v

7 Methods Application All studies were sprayed either with a 7.5 foot (effective width) handheld sprayer using AIXR flat fan spray tips spaced at 15 inches (held 18 inches above target) to deliver 15 GPA at 30 psi (CO 2 propellant) or a tractor or RTV-mounted compressed air 10 or 15-foot boom using AI11002 tips at 20 GPA and 40 psi. Rating System The visual weed control and crop injury ratings within this report are based on a 0 to 100 scale. For weed control ratings 0 = no kill and 100 = complete kill, for crop injury 0 = no injury and 100 = total crop kill. Weed species are reported with a five-letter Bayer code with the explanation for each code given in the abbreviation section. Herbicides are referred to by the trade name, common name, or experimental number. Yield Crop yields, when available, were taken either by hand-harvesting or using a small-plot combine. The samples were taken from the middle of each plot. Moisture content was measured with an electronic moisture meter or through oven-dried sub-samples. All grain yields are reported in bushels per acre (bu/ac) or pounds per acre (lb/ac) at the standard moisture for the crop. Back vi

8 Temperature and Rainfall Data for April and May at Rock Springs Research Farm April 2014 May 2014 Temp. (F) Temp. (F) Precip. Temp. (F) Temp. (F) Precip. Day Min. Max. Inches Min. Max. Inches Total Average Extreme Back vii

9 Temperature and Rainfall Data for June and July at Rock Springs Research Farm June 2014 July 2014 Temp. (F) Temp. (F) Precip. Temp. (F) Temp. (F) Precip. Day Min. Max. Inches Min. Max. Inches Total Average Extreme Back viii

10 Temperature and Rainfall Data for August at Rock Springs Research Farm August 2014 September 2014 Temp. (F) Temp. (F) Precip. Temp. (F) Temp. (F) Precip. Day Min. Max. Inches Min. Max. Inches Total Average Extreme Back ix

11 Temperature and Rainfall Data for April and May at the Landisville Research Farm April 2014 May 2014 Temp. (F) Temp. (F) Precip. Temp. (F) Temp. (F) Precip. Day Min. Max. Inches Min. Max. Inches Total Average Extreme Back x

12 Temperature and Rainfall Data for June and July at the Landisville Research Farm June 2014 July 2014 Temp. (F) Temp. (F) Precip. Temp. (F) Temp. (F) Precip. Day Min. Max. Inches Min. Max. Inches Total Average Extreme Back xi

13 Temperature and Rainfall Data for August and September at the Landisville Research Farm August 2014 September 2014 Temp. (F) Temp. (F) Precip. Temp. (F) Temp. (F) Precip. Day Min. Max. Inches Min. Max. Inches Total Average Extreme Back xii

14 Bayer Crop and Weed Codes Bayer Code Common Name Bayer Code Common Name ABUTH Velvetleaf PHTAM Common pokeweed AMACH Smooth pigweed PLAMA Common plantain AMARE Redroot pigweed POATR Rough-stalk Bluegrass AMBEL Common ragweed POLAV Prostrate knotweed ASCSY Common milkweed POLCO Wild buckwheat BROTE Downy brome POLPE Ladysthumb CAPBP Shepherd s-purse POLPY Pennsylvania smartweed CARHI Hairy bittercress POROL Common Purslane CERVU Mouseear Chickeweed SENVU Common groundsel CHEAL Common lambsquarters SETFA Giant foxtail CIRAR Canada thistle SETLU Yellow foxtail CYPES Yellow nutsedge SOLCA Horsenettle DAUCA Wild carrot SOLPT Eastern black nightshade DIGSA Large crabgrass STEME Common chickweed ERICA Horseweed TAROF Dandelion GASCI Hairy Galinsoga THLAR Field pennycress GLEHE Ground ivy TRFRE White clover GLXMA Soybean TRZAW Winter Wheat LAMAM Henbit VERAR Corn speedwell LAMPU Purple deadnettle VERPG Purslane Speedwell MEDSA Alfalfa ZEAMS Sweet corn PANDI Fall panicum ZEAMX Field/volunteer corn Application/Data Codes EPP Early preplant %CONTRO % Control PP Preplant %V/V Volume per volume PRE Preemergence BROSOI Broadcast soil applied EPOST Early postemergence BROFOL Broadcast foliar applied MPOST Mid postemergence %PHYGEN General phytotoxicity POST Postemergence #, g, LB/M 2 #weeds, grams, pound per square meter LPOST Late postemergence LBS,BU/AC Pounds,Bushels per acre PHYSTU Phytotoxicity - Stunting PHYCHL Phytotoxicity - Chlorosis T-US ton (short=2000 lb) WEIFRE Fresh weight COUPLA Count of Plants WEIDRY Dry weight 2,4,8 WAA Weeks after application AMS COC MSO NIS UAN Additives Ammonium sulfate Crop oil concentrate Prime Oil brand from Agriliance International Methylated soybean oil from Agriliance International Non-ionic surfactant Activate Plus brand from Agriliance International Urea-ammonia-nitrogen Back xiii

15 Herbicides Included in the 2014 Trials Trade Name Common Name Manufacturer 2,4-D LVE or Amine 4E 2,4-D LVE or Amine several AAtrex, Atrazine 4L/90DF atrazine Syngenta, others Abundit Extra 3SL glyphosate Dupont Accolade 80WG flumetsulam FMC Acuron (SYN-A197) bicyclopyrone + mesotrione + atrazine + s-metolachlor Syngenta Aim EC carfentrazone FMC Ally 60DF metsulfuron Dupont Anthem 1.15L pyroxasulfone + fluthiacet FMC Anthem ATZ 4.5L pyroxasulfone + fluthiacet+ atrazine FMC Armezon 2.85SC topramezone BASF Assure II 0.88 EC quizalofop Dupont Authority Assist 4L sulfentrazone + imazethapyr FMC Authority Elite 7L sulfentrazone + metolachlor FMC Authority First 70WG sulfentrazone + cloransulam-methyl FMC Authority Maxx 66WG sulfentrazone + chlorimuron FMC Authority MTZ 45DF sulfentrazone + metribuzin FMC Authority XL 70WG sulfentrazone + chlorimuron-ethyl FMC Autumn iodosulfuron Bayer CropScience Balance Bean 4SC isoxaflutole Bayer CropScience Balance Flexx 2SC isoxaflutole + isoxadifen Bayer CropScience Banvel dicamba (dimethylamine salt) Arysta LifeScience Basagran 4L bentazon BASF Basis Blend rimsulfuron + thifensulfuron Dupont Bicep II Magnum 5.5L/Cinch ATZ s-metolachlor + atrazine + safener Syngenta/DuPont Boundary 6.5L metolachlor + metribuzin Syngenta Breakfree ATZ acetochlor + atrazine Dupont Cadet 0.91E fluthiacet FMC Callisto 4SC mesotrione Syngenta Camix 3.67SC s-metolachlor and mesotrione Syngenta Canopy 75DF chlorimuron-ethyl + metribuzin DuPont Canopy EX chlorimuron + tribenuron Dupont Capreno 3.45L tembotrione + thiencarbazone-methyl + cyprosulfamide Bayer Chateau 51 flumioxazin Valent Cinch ATZ 5.5L atrazine + metolachlor Dupont Clarity 4S dicamba (diglycolamine) BASF Classic 25DF chlorimuron-ethyl DuPont Cobra 2E lactofen Valent Command 3ME clomazone FMC Corvus 3.88 SC isoxaflutole + thiencarbazone-methyl + cyprosulfamide Bayer Curbit 3EC ethalfluralin Loveland Degree 3.8CS acetochlor Monsanto xiv

16 Degree Xtra 4CS acetochlor + atrazine Monsanto Diflexx dicamba + safener Bayer CropScience Dual II Magnum 7.64E/Cinch s-metolachlor + safener Syngenta/DuPont Dual Magnum 7.62E s-metolachlor Syngenta Durango DMA glyphosate Dow AgroSciences Engenia dicamba (batma salt) BASF Enlist Duo 2,4-D choline + glyphosate Dow AgroSciences Envive 41.3WDG chlorimuron + flumioxazin + thifensulfuron DuPont Express 50 WG tribenuron Dupont Facet quinclorac BASF Fierce 76WG flumioxazin + pyroxasulfone Valent FirstRate 84WDG cloransulam-methyl Dow AgroSciences Flexstar GT 3.29L glyphosate + fomesafen Syngenta FulTime NXT acetochlor + atrazine Dow AgroSciences Gramoxone 2S paraquat Syngenta Halex GT 4.39EC s-metolachlor + mesotrione + glyphosate Syngenta Harmony SG 50WDG thifensulfuron Dupont Harness 7 EC acetochlor Monsanto Harness Xtra 5.6/6L acetochlor + atrazine Monsanto Hornet WDG flumetsulam + clopyralid Dow AgroSciences Huskie 2.06 L pyrasulfotole + bromoxynil Bayer CropScience Impact 2.8SC topramezone AMVAC Instigate rimsulfuron + mesotrione Dupont Keystone NXT 5.6SE acetochlor + atrazine Dow AgroSciences Laudis 3.5SC tembotrione Bayer CropScience Lexar and Lexar EZ 3.7 SC s-metolachlor + mesotrione + atrazine Syngenta Liberty SL glufosinate Bayer CropScience Lifeline 2.34L glufosinate United Phosphorus, Inc. Lumax 3.95 SC s-metolachlor + mesotrione + atrazine Syngenta Marvel fomesafen + fluthiacet FMC Metribuzin metribuzin various MSO methoylated seed oil various N-Pak AMS Liquid liquid ammonium sulfate adjuvant Winfield Solutions NorthStar primisulfuron + dicamba (sodium salt) Syngenta Optill 68WG saflufenacil + imazethapyr BASF Optill Pro (co-pack) saflufenacil + imazethapyr + dimethenamid-p BASF Option 35WG foramsulfuron Bayer Outlook 6E dimethenamid-p BASF Panoflex tribenuron + thifensulfuron Dupont Permit Plus 75WG halosulfuron + thifensulfuron Gowan Permit/Sandea 75WG halosulfuron Gowan Pre-Pare 70 WG flucarbazone Arysta LifeScience Prefix 5.3EC s-metolachlor + fomesafen Syngenta Prequel 45 WG rimsulfuron + isoxaflutole Dupont xv

17 Princep 4L simazine Syngenta Prowl H 2 O 3.8CS pendimethalin BASF Pursuit 2L imazethapyr BASF Python 80WG flumetsulam Dow AgroSciences Raptor 1L imazamox BASF Realm Q rimsulfuron + mesotrione + isoxadifen Dupont Reflex 2 SL fomesafen Syngenta Resolve 25DF rimsulfuron DuPont Resolve Q 22.4WDG rimsulfuron + thifensulfuron + isoxadifen DuPont Roundup PowerMax/WeatherMax 4.5S glyphosate Monsanto Roundup Xtend Glyphosate + dicamba (diglycolamine) Monsanto Select MAX 0.97EC or Select 2.0 clethodim Valent Sharpen 2.85 SC saflufenacil BASF Solstice mesotrione + fluthiacet FMC Sonic 70DF sulfentrazone + cloransulam-methyl Dow AgroSciences Spartan 4E sulfentrazone FMC Spartan Charge sulfentrazone + carfentrazone FMC Stanza clopyralid + flumetsulam FMC Status 56WG dicamba + diflufenzopyr + isoxadifen BASF Steadfast ATZ 89.3WDG nicosulfuron + rimsulfuron + atrazine DuPont Steadfast Q 75DF nicosulfuron + rimsulfuron + safener DuPont Storm 4L bentazon + acifluorfen United Phosphorus, Inc. Strategy ethylfluralin + clomazone Loveland SureStart II 4.25 SE acetochlor + flumetsulam + clopyralid Dow AgroSciences Synchrony 42 XP chlorimuron + thifensulfuron Dupont Touchdown Total 4.17S5 glyphosate Syngenta Tricor metribuzin United Phosphorus, Inc. Tripleflex acetochlor + flumetsulam + clopyralid Monsanto Trivence chlorimuron + metribuzin +flumioxazin Dupont Valor SX 51WDG flumioxazin Valent Valor XLT 40.3WDG chlorimuronl + flumioxazin Valent Verdict 5.57SC saflufenacil + dimenthenamid-p BASF Warrant 3CS acetochlor Monsanto XtendiMax dicamba (diclycolamine) Monsanto Yukon 67.5WD halosulfuron + dicamba (sodium salt) Gowan Zemax 3.67 SC (new formulation) metolachlor + mesotrione Syngenta Zest L Nicosulfuron Dupont Zidua 85WG pyroxasulfone BASF Back xvi

18 (RSCNQS114) The Pennsylvania State University Bicyclopyrone: Acuron Herbicide Compared to Competitive Standards in Reduced Till Corn Trial ID: RSCNQS114 Protocol ID: corn114 Location: Rosck Springs Investigator: Dr. William S. Curran Trial Summary This study examined Acuron herbicide, a new product from Syngenta that contains the new HPPD inhibitor bicycylopyrone plus the same components found in Lumax or Lexar. This study was conducted in a reduced tillage field. The primary weeds were giant foxtail, common lambsquarters, common ragweed, velvetleaf and some redroot pigweed. Corn was planted on May 9 and PRE s were applied on May 12. Rainfall was good for herbicide activation and all PRE s worked well. A minor amount of corn injury was noted early with some treatments, but it quickly disappeared. Control of all weeds was at least 90% and corn yields were good. Crop Description Crop 1: ZEAMX Zea mays Corn Variety: DKC47-35RIB BBCH Scale: BCOR Planting Date: May Planting Method: PLANTD Rate, Unit: S/A Depth, Unit: 1.75 IN Row Spacing, Unit: 30 IN Seed Bed: MEDIUM Soil Moisture: GOOD Pest 1 Type: W Code: SETFA Setaria faberi Common Name: Giant foxtail Pest Description Pest 2 Type: W Code: ABUTH Abutilon theophrasti Common Name: velvetleaf Pest 3 Type: W Code: AMBEL Ambrosia artemisiifolia Common Name: Common ragweed Pest 4 Type: W Code: POLPY Persicaria pensylvanica Common Name: Pennsylvania smartweed Pest 5 Type: W Code: CHEAL Chenopodium album Common Name: Common lambsquarters Plot Width, Unit: 10 FT Plot Length, Unit: 30 FT Plot Area, Unit: 300 FT2 Replications: 3 Site and Design Study Design: RACOBL Randomized Complete Block (RCB) % OM: 2.1 Texture: SIL silt loam ph: 6.5 Soil Name: HAGERSTOWN CEC: 10.1 Fert. Level: E excellent Soil Drainage: F fair Soil Description 1

19 A B Application Date: May Jun Time of Day: 3:30 PM 11:00 AM Application Method: SPRAY SPRAY Application Timing: PRE MPOST Application Placement: BROADC BROADC Applied By: DDL DDL Air Temperature, Unit: 79 F 74 F % Relative Humidity: Wind Velocity, Unit: 3 MPH 3 MPH Wind Direction: W W Dew Presence (Y/N): N no N no Soil Temperature, Unit: 68 F 69 F Soil Moisture: SLIWET DRY % Cloud Cover: The Pennsylvania State University Application Description A B BCOR BCOR Stage Scale Used: BBCH Stage Majority, Percent: V5 Height Minimum, Maximum: Crop Stage At Each Application A B Pest Stage At Each Application Height Minimum, Maximum: Height Minimum, Maximum: Height Minimum, Maximum: Height Minimum, Maximum: Height Minimum, Maximum: A B Appl. Equipment: HAND-HELD HAND-HELD Equipment Type: SPRBAC SPRBAC Operation Pressure, Unit: 30 PSI 30 PSI Nozzle Type: FLAT FAN FLAT FAN Nozzle Size: AIX AIX Nozzle Spacing, Unit: 15 IN 15 IN Boom Length, Unit: 7.5 FT 7.5 FT Boom Height, Unit: 18 IN 18 IN Ground Speed, Unit: 3 MPH 3 MPH Carrier: WATER WATER Spray Volume, Unit: 15 gal/ac 15 gal/ac Mix Size, Unit: 1.5 Liters 1.5 Liters Propellant: COMCO2 COMCO2 Application Equipment 2

20 Bicyclopyrone: Acuron Herbicide Compared to Competitive Standards in Reduced Till Corn Trial ID: RSCNQS114 Protocol ID: corn114 Location: Rosck Springs Investigator: Dr. William S. Curran Pest Code Pest Name ZEAMX ZEAMX ZEAMX ZEAMX Crop Name Corn Corn Corn Corn Rating Date Jun Jul Aug Dec Rating Type PHYGEN PHYGEN PHYGEN YIELD Rating Unit % % % bu/ac 1 Untreated 0 e 0 a 0 a 153 d 2 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 1 de 0 a 0 a 205 abc 3 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 1 de 0 a 0 a 202 abc Aatrex 4 L 1 qt/a 1 lb ai/a PRE 4 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 1 de 0 a 0 a 212 ab Princep 4 L 1 qt/a 1 lb ai/a PRE 5 Lexar EZ 3.7 SC 3 qt/a 2.78 lb ai/a PRE 1 de 0 a 0 a 214 a 6 Lumax EZ 3.67 SC 2.7 qt/a 2.48 lb ai/a PRE 1 de 0 a 0 a 205 abc 7 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 1 de 0 a 0 a 202 abc Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST 8 Acuron 3.44 ZC 2.5 qt/a 2.15 lb ai/a MPOST 0 e 0 a 0 a 193 abc Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST Status 56 WG 5 oz/a lb ae/a MPOST 9 Anthem ATZ 4.5 SE 1 qt/a 1.13 lb ai/a PRE 3 bc 0 a 0 a 193 abc Aatrex 4 L 1 qt/a 1 lb ai/a PRE 10 SureStart 4.25 SC 2 pt/a 1.06 lb ai/a PRE 4 ab 0 a 0 a 184 abc Aatrex 4 L 1 qt/a 1 lb ai/a PRE 11 Verdict 5.57 EC 15 fl oz/a 0.65 lb ai/a PRE 6 a 0 a 0 a 177 cd Aatrex 4 L 1 qt/a 1 lb ai/a PRE 12 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 2 cd 0 a 0 a 183 bcd Aatrex 4 L 1 qt/a 1 lb ai/a PRE LSD (P=.05) CV

21 Pest Code SETFA SETFA SETFA CHEAL Pest Name Giant foxtail Giant foxtail Giant foxtail Common lambsqu> Crop Name Rating Date Jun Jul Aug Jun Rating Type CONTRO CONTRO CONTRO CONTRO Rating Unit % % % % 1 Untreated 0 b 0 d 0 d 0 c 2 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 99 ab 98 ab 99 a 3 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 98 ab 97 ab 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 4 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 99 a 98 ab 99 a Princep 4 L 1 qt/a 1 lb ai/a PRE 5 Lexar EZ 3.7 SC 3 qt/a 2.78 lb ai/a PRE 99 a 98 ab 98 ab 99 a 6 Lumax EZ 3.67 SC 2.7 qt/a 2.48 lb ai/a PRE 99 a 99 a 98 ab 99 a 7 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 99 a 98 ab 99 a Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST 8 Acuron 3.44 ZC 2.5 qt/a 2.15 lb ai/a MPOST 0 b 99 a 99 a 0 c Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST Status 56 WG 5 oz/a lb ae/a MPOST 9 Anthem ATZ 4.5 SE 1 qt/a 1.13 lb ai/a PRE 99 a 99 a 98 ab 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 10 SureStart 4.25 SC 2 pt/a 1.06 lb ai/a PRE 99 a 95 c 93 c 99 b Aatrex 4 L 1 qt/a 1 lb ai/a PRE 11 Verdict 5.57 EC 15 fl oz/a 0.65 lb ai/a PRE 99 a 97 b 97 ab 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 12 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 a 98 ab 97 b 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE LSD (P=.05) CV

22 Pest Code CHEAL CHEAL AMBEL Pest Name Common lambsqu> Common lambsqu> Common ragweed Crop Name Rating Date Jul Aug Jun Rating Type CONTRO CONTRO CONTRO Rating Unit % % % 1 Untreated 0 c 0 e 0 c 2 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 ab 97 a-d 99 a 3 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 98 ab 97 a-d 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 4 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 98 abc 99 a Princep 4 L 1 qt/a 1 lb ai/a PRE 5 Lexar EZ 3.7 SC 3 qt/a 2.78 lb ai/a PRE 98 ab 97 a-d 99 a 6 Lumax EZ 3.67 SC 2.7 qt/a 2.48 lb ai/a PRE 99 a 99 ab 99 a 7 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 ab 98 abc 99 a Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST 8 Acuron 3.44 ZC 2.5 qt/a 2.15 lb ai/a MPOST 99 a 99 a 0 c Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST Status 56 WG 5 oz/a lb ae/a MPOST 9 Anthem ATZ 4.5 SE 1 qt/a 1.13 lb ai/a PRE 98 ab 96 cd 98 b Aatrex 4 L 1 qt/a 1 lb ai/a PRE 10 SureStart 4.25 SC 2 pt/a 1.06 lb ai/a PRE 98 ab 95 d 99 ab Aatrex 4 L 1 qt/a 1 lb ai/a PRE 11 Verdict 5.57 EC 15 fl oz/a 0.65 lb ai/a PRE 98 b 96 bcd 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 12 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 a 99 ab 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE LSD (P=.05) CV

23 Pest Code AMBEL AMBEL ABUTH Pest Name Common ragweed Common ragweed velvetleaf Crop Name Rating Date Jul Aug Jun Rating Type CONTRO CONTRO CONTRO Rating Unit % % % 1 Untreated 0 d 0 e 0 c 2 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 98 a 98 abc 99 a 3 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 98 ab 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 4 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 98 a 98 ab 99 a Princep 4 L 1 qt/a 1 lb ai/a PRE 5 Lexar EZ 3.7 SC 3 qt/a 2.78 lb ai/a PRE 98 ab 96 abc 99 a 6 Lumax EZ 3.67 SC 2.7 qt/a 2.48 lb ai/a PRE 94 bc 91 d 99 a 7 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 98 ab 99 a Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST 8 Acuron 3.44 ZC 2.5 qt/a 2.15 lb ai/a MPOST 99 a 99 a 0 c Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST Status 56 WG 5 oz/a lb ae/a MPOST 9 Anthem ATZ 4.5 SE 1 qt/a 1.13 lb ai/a PRE 98 ab 94 bcd 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 10 SureStart 4.25 SC 2 pt/a 1.06 lb ai/a PRE 93 c 91 d 99 b Aatrex 4 L 1 qt/a 1 lb ai/a PRE 11 Verdict 5.57 EC 15 fl oz/a 0.65 lb ai/a PRE 97 abc 93 cd 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 12 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 a 98 abc 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE LSD (P=.05) CV

24 Pest Code ABUTH ABUTH AMARE AMARE Pest Name velvetleaf velvetleaf Redroot pigweed Redroot pigweed Crop Name Rating Date Jul Aug Jun Jul Rating Type CONTRO CONTRO CONTRO CONTRO Rating Unit % % % % 1 Untreated 0 c 0 c 0 c 0 b 2 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 99 a 99 a 99 a 3 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 99 a 99 a 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 4 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 ab 99 a 99 a 99 a Princep 4 L 1 qt/a 1 lb ai/a PRE 5 Lexar EZ 3.7 SC 3 qt/a 2.78 lb ai/a PRE 99 a 99 a 99 a 99 a 6 Lumax EZ 3.67 SC 2.7 qt/a 2.48 lb ai/a PRE 99 a 99 a 99 a 99 a 7 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 99 a 99 a 99 a Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST 8 Acuron 3.44 ZC 2.5 qt/a 2.15 lb ai/a MPOST 99 a 99 a 0 c 99 a Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST Status 56 WG 5 oz/a lb ae/a MPOST 9 Anthem ATZ 4.5 SE 1 qt/a 1.13 lb ai/a PRE 99 a 99 a 99 a 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 10 SureStart 4.25 SC 2 pt/a 1.06 lb ai/a PRE 98 b 96 b 99 b 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 11 Verdict 5.57 EC 15 fl oz/a 0.65 lb ai/a PRE 99 a 99 a 99 a 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 12 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 a 98 ab 99 a 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE LSD (P=.05) CV

25 Pest Code AMARE Pest Name Redroot pigweed Crop Name Rating Date Aug Rating Type CONTRO Rating Unit % 1 Untreated 0 b 2 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a 3 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 4 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a Princep 4 L 1 qt/a 1 lb ai/a PRE 5 Lexar EZ 3.7 SC 3 qt/a 2.78 lb ai/a PRE 99 a 6 Lumax EZ 3.67 SC 2.7 qt/a 2.48 lb ai/a PRE 99 a 7 Acuron 3.44 SC 2.5 qt/a 2.15 lb ai/a PRE 99 a Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST 8 Acuron 3.44 ZC 2.5 qt/a 2.15 lb ai/a MPOST 99 a Touchdown Total 4.17 L 30 fl oz/a 0.98 lb ae/a MPOST Status 56 WG 5 oz/a lb ae/a MPOST 9 Anthem ATZ 4.5 SE 1 qt/a 1.13 lb ai/a PRE 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 10 SureStart 4.25 SC 2 pt/a 1.06 lb ai/a PRE 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 11 Verdict 5.57 EC 15 fl oz/a 0.65 lb ai/a PRE 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE 12 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 a Aatrex 4 L 1 qt/a 1 lb ai/a PRE LSD (P=.05) 0.0 CV 0.0 Means followed by same letter do not significantly differ (P=.05, LSD) Back 8

26 (RSCNQS214) The Pennsylvania State University HPPD Herbicides: Corvus, Balance Flexx, Capreno, and Impact Programs in Reduced Till Corn Trial ID: RSCNQS214 Protocol ID: corn314 Location: Rock Springs Investigator: Dr. William S. Curran Trial Summary This study examined some HPPD herbicides including Corvus, Balance Flexx, Capreno, Laudis, and Impact. This study was conducted in a reduced tillage field. The primary weeds were giant foxtail, common lambsquarters, common ragweed, velvetleaf and some redroot pigweed. Corn was planted on May 9 and PRE s were applied on May 12 and POST on June 13. POST treatments included mixtures with Roundup or Liberty. Rainfall was good for herbicide activation and all PRE s worked well. Very minor injury to corn was noted with some treatments and control of all weeds was at least 90% and corn yields were good. Crop Description Crop 1: ZEAMX Zea mays Corn Variety: DKC47-35RIB BBCH Scale: BCOR Planting Date: May Planting Method: PLANTD Rate, Unit: S/A Depth, Unit: 1.75 IN Row Spacing, Unit: 30 IN Seed Bed: MEDIUM Soil Moisture: GOOD Pest 1 Type: W Code: SETFA Setaria faberi Common Name: Giant foxtail Pest Description Pest 2 Type: W Code: ABUTH Abutilon theophrasti Common Name: velvetleaf Pest 3 Type: W Code: AMBEL Ambrosia artemisiifolia Common Name: Common ragweed Pest 4 Type: W Code: POLPY Persicaria pensylvanica Common Name: Pennsylvania smartweed Pest 5 Type: W Code: CHEAL Chenopodium album Common Name: Common lambsquarters Plot Width, Unit: 10 FT Plot Length, Unit: 30 FT Plot Area, Unit: 300 FT2 Replications: 3 Site and Design Study Design: RACOBL Randomized Complete Block (RCB) A B Application Date: May Jun Time of Day: 3:45PM 11:AM Application Method: SPRAY SPRAY Application Timing: PRE MPOST Application Placement: BROADC BROADC Applied By: DDL DDL Air Temperature, Unit: 79 F 74 F % Relative Humidity: Wind Velocity, Unit: 3 MPH 3 MPH Soil Temperature, Unit: 68 F 69 F Soil Moisture: SLIWET SLIWET % Cloud Cover: Application Description 9

27 A B BCOR BCOR Stage Scale Used: BBCH Stage Majority, Percent: V5 Height Minimum, Maximum: The Pennsylvania State University Crop Stage At Each Application A B Pest Stage At Each Application Height Minimum, Maximum: Height Minimum, Maximum: Height Minimum, Maximum: Height Minimum, Maximum: Height Minimum, Maximum: A B Appl. Equipment: HAND-HELD HAND-HELD Equipment Type: SPRBAC SPRBAC Operation Pressure, Unit: 30 PSI 30 PSI Nozzle Type: FLAT FAN FLAT FAN Nozzle Size: AIX AIX Nozzle Spacing, Unit: 15 IN 15 IN Boom Length, Unit: 7.5 FT 7.5 FT Boom Height, Unit: 18 IN 18 IN Ground Speed, Unit: 3 MPH 3 MPH Carrier: WATER WATER Spray Volume, Unit: 15 gal/ac 15 gal/ac Mix Size, Unit: 1.5 Liters 1.5 Liters Propellant: COMCO2 COMCO2 Application Equipment 10

28 HPPD Herbicides: Corvus, Balance Flexx, Capreno, and Impact Programs in Reduced Till Corn Trial ID: RSCNQS214 Protocol ID: corn314 Location: Rock Springs Investigator: Dr. William S. Curran Pest Code Pest Name ZEAMX ZEAMX ZEAMX ZEAMX Crop Name Corn Corn Corn Corn Rating Date Jun Jul Aug Dec Rating Type PHYGEN PHYGEN PHYGEN YIELD Rating Unit % % % bu/ac 1 Untreated 0 d 0 a 0 a 123 e 2 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 4 a 0 a 0 a 203 a-d Atrazine 4 L 1 qt/a 1 lb ai/a PRE 3 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 0 cd 0 a 0 a 207 ab Atrazine 4 L 1 qt/a 1 lb ai/a PRE 4 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 1 b 0 a 0 a 200 a-d Atrazine 4 L 1 qt/a 1 lb ai/a PRE Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 5 Balance Flexx 2 SC 4 fl oz/a lb ai/a PRE 0 d 0 a 0 a 180 d Degree Xtra 4.04 SC 3 qt/a 3.03 lb ai/a PRE 6 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 0 cd 0 a 0 a 204 a-d Zidua 85 WG 2 oz/a lb ai/a PRE 7 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 1 bc 0 a 0 a 205 abc Atrazine 4 L 1 qt/a 1 lb ai/a PRE Liberty L 32 fl oz/a lb ai/a MPOST 8 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 0 d 0 a 0 a 211 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Laudis 3.5 SC 3 fl oz/a lb ai/a MPOST 9 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 0 a 0 a 189 a-d Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 10 Impact 2.8 SC 1 fl oz/a lb ai/a MPOST 0 d 0 a 0 a 187 a-d Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 11 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 0 a 0 a 184 bcd Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Warrant 3 L 3 pt/a 1.13 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 12 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 0 a 0 a 183 cd Sequence 5.25 EW 2.5 pt/a 1.64 lb ai/a MPOST Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 13 Halex GT 4.39 SC 3.6 pt/a 1.98 lb ai/a MPOST 0 d 0 a 0 a 189 a-d Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 11

29 Pest Code Pest Name ZEAMX ZEAMX ZEAMX ZEAMX Crop Name Corn Corn Corn Corn Rating Date Jun Jul Aug Dec Rating Type PHYGEN PHYGEN PHYGEN YIELD Rating Unit % % % bu/ac 14 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 0 a 0 a 186 bcd Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Zidua 85 WG 2 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 15 Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 0 d 0 a 0 a 193 a-d Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 16 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 0 a 0 a 194 a-d Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Status 56 WG 2.5 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST LSD (P=.05) CV

30 Pest Code SETFA SETFA SETFA Pest Name Giant foxtail Giant foxtail Giant foxtail Crop Name Rating Date Jun Jul Aug Rating Type CONTRO CONTRO CONTRO Rating Unit % % % 1 Untreated 0 d 0 f 0 f 2 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 a 96 bcd 95 cd Atrazine 4 L 1 qt/a 1 lb ai/a PRE 3 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 97 b 92 e 89 e Atrazine 4 L 1 qt/a 1 lb ai/a PRE 4 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 96 bc 98 abc 97 a-d Atrazine 4 L 1 qt/a 1 lb ai/a PRE Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 5 Balance Flexx 2 SC 4 fl oz/a lb ai/a PRE 99 a 97 a-d 97 abc Degree Xtra 4.04 SC 3 qt/a 3.03 lb ai/a PRE 6 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 99 a 96 bcd 96 bcd Zidua 85 WG 2 oz/a lb ai/a PRE 7 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 95 c 96 cd 96 bcd Atrazine 4 L 1 qt/a 1 lb ai/a PRE Liberty L 32 fl oz/a lb ai/a MPOST 8 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 96 bc 95 d 94 d Atrazine 4 L 1 qt/a 1 lb ai/a PRE Laudis 3.5 SC 3 fl oz/a lb ai/a MPOST 9 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 98 abc 97 a-d Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 10 Impact 2.8 SC 1 fl oz/a lb ai/a MPOST 0 d 98 abc 97 a-d Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 11 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 99 ab 98 ab Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Warrant 3 L 3 pt/a 1.13 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 12 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 99 a 99 a Sequence 5.25 EW 2.5 pt/a 1.64 lb ai/a MPOST Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 13 Halex GT 4.39 SC 3.6 pt/a 1.98 lb ai/a MPOST 0 d 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 13

31 Pest Code SETFA SETFA SETFA Pest Name Giant foxtail Giant foxtail Giant foxtail Crop Name Rating Date Jun Jul Aug Rating Type CONTRO CONTRO CONTRO Rating Unit % % % 14 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Zidua 85 WG 2 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 15 Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 0 d 98 abc 97 a-d Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 16 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 d 98 abc 97 abc Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Status 56 WG 2.5 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST LSD (P=.05) CV

32 Pest Code CHEAL CHEAL Pest Name Common lambsqu> Common lambsqu> Crop Name Rating Date Jun Jul Rating Type CONTRO CONTRO Rating Unit % % 1 Untreated 0 c 0 c 2 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE 3 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 99 a 98 ab Atrazine 4 L 1 qt/a 1 lb ai/a PRE 4 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 97 b 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 5 Balance Flexx 2 SC 4 fl oz/a lb ai/a PRE 99 a 99 a Degree Xtra 4.04 SC 3 qt/a 3.03 lb ai/a PRE 6 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 99 a 99 a Zidua 85 WG 2 oz/a lb ai/a PRE 7 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 97 b 98 b Atrazine 4 L 1 qt/a 1 lb ai/a PRE Liberty L 32 fl oz/a lb ai/a MPOST 8 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 97 b 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Laudis 3.5 SC 3 fl oz/a lb ai/a MPOST 9 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 10 Impact 2.8 SC 1 fl oz/a lb ai/a MPOST 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 11 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Warrant 3 L 3 pt/a 1.13 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 12 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a Sequence 5.25 EW 2.5 pt/a 1.64 lb ai/a MPOST Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 13 Halex GT 4.39 SC 3.6 pt/a 1.98 lb ai/a MPOST 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 15

33 Pest Code CHEAL CHEAL Pest Name Common lambsqu> Common lambsqu> Crop Name Rating Date Jun Jul Rating Type CONTRO CONTRO Rating Unit % % 14 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Zidua 85 WG 2 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 15 Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 16 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Status 56 WG 2.5 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST LSD (P=.05) CV

34 Pest Code CHEAL AMBEL AMBEL Pest Name Common lambsqu> Common ragweed Common ragweed Crop Name Rating Date Aug Jun Jul Rating Type CONTRO CONTRO CONTRO Rating Unit % % % 1 Untreated 0 d 0 c 0 c 2 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 ab 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE 3 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 97 bc 99 a 98 b Atrazine 4 L 1 qt/a 1 lb ai/a PRE 4 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 99 ab 97 b 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 5 Balance Flexx 2 SC 4 fl oz/a lb ai/a PRE 98 abc 99 a 99 ab Degree Xtra 4.04 SC 3 qt/a 3.03 lb ai/a PRE 6 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 99 ab 99 a 99 ab Zidua 85 WG 2 oz/a lb ai/a PRE 7 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 96 c 97 b 98 ab Atrazine 4 L 1 qt/a 1 lb ai/a PRE Liberty L 32 fl oz/a lb ai/a MPOST 8 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 99 a 97 b 98 ab Atrazine 4 L 1 qt/a 1 lb ai/a PRE Laudis 3.5 SC 3 fl oz/a lb ai/a MPOST 9 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 ab 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 10 Impact 2.8 SC 1 fl oz/a lb ai/a MPOST 99 a 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 11 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 a 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Warrant 3 L 3 pt/a 1.13 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 12 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 ab 0 c 99 a Sequence 5.25 EW 2.5 pt/a 1.64 lb ai/a MPOST Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 13 Halex GT 4.39 SC 3.6 pt/a 1.98 lb ai/a MPOST 99 a 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 17

35 Pest Code CHEAL AMBEL AMBEL Pest Name Common lambsqu> Common ragweed Common ragweed Crop Name Rating Date Aug Jun Jul Rating Type CONTRO CONTRO CONTRO Rating Unit % % % 14 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 a 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Zidua 85 WG 2 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 15 Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 98 ab 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 16 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 a 0 c 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Status 56 WG 2.5 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST LSD (P=.05) CV

36 Pest Code AMBEL ABUTH ABUTH ABUTH Pest Name Common ragweed velvetleaf velvetleaf velvetleaf Crop Name Rating Date Aug Jun Jul Aug Rating Type CONTRO CONTRO CONTRO CONTRO Rating Unit % % % % 1 Untreated 0 c 0 c 0 c 0 c 2 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 98 ab 99 a 99 a 98 b Atrazine 4 L 1 qt/a 1 lb ai/a PRE 3 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 96 b 99 a 98 b 98 b Atrazine 4 L 1 qt/a 1 lb ai/a PRE 4 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 99 a 97 b 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 5 Balance Flexx 2 SC 4 fl oz/a lb ai/a PRE 97 b 99 a 99 b 99 b Degree Xtra 4.04 SC 3 qt/a 3.03 lb ai/a PRE 6 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 97 ab 99 a 99 a 99 a Zidua 85 WG 2 oz/a lb ai/a PRE 7 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 96 b 97 b 99 ab 99 ab Atrazine 4 L 1 qt/a 1 lb ai/a PRE Liberty L 32 fl oz/a lb ai/a MPOST 8 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 98 ab 97 b 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Laudis 3.5 SC 3 fl oz/a lb ai/a MPOST 9 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 a 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 10 Impact 2.8 SC 1 fl oz/a lb ai/a MPOST 99 a 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 11 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 a 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Warrant 3 L 3 pt/a 1.13 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 12 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 a 0 c 99 a 99 a Sequence 5.25 EW 2.5 pt/a 1.64 lb ai/a MPOST Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 13 Halex GT 4.39 SC 3.6 pt/a 1.98 lb ai/a MPOST 99 a 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 19

37 Pest Code AMBEL ABUTH ABUTH ABUTH Pest Name Common ragweed velvetleaf velvetleaf velvetleaf Crop Name Rating Date Aug Jun Jul Aug Rating Type CONTRO CONTRO CONTRO CONTRO Rating Unit % % % % 14 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 a 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Zidua 85 WG 2 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 15 Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 99 a 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 16 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 99 a 0 c 99 a 99 ab Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Status 56 WG 2.5 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST LSD (P=.05) CV

38 Pest Code AMARE AMARE AMARE Pest Name Redroot pigweed Redroot pigweed Redroot pigweed Crop Name Rating Date Jun Jul Aug Rating Type CONTRO CONTRO CONTRO Rating Unit % % % 1 Untreated 0 c 0 b 0 b 2 Corvus 2.63 SC 5.6 fl oz/a lb ai/a PRE 99 a 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE 3 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 99 a 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE 4 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 97 b 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 5 Balance Flexx 2 SC 4 fl oz/a lb ai/a PRE 99 a 99 a 99 a Degree Xtra 4.04 SC 3 qt/a 3.03 lb ai/a PRE 6 Balance Flexx 2 SC 6 fl oz/a lb ai/a PRE 99 a 99 a 99 a Zidua 85 WG 2 oz/a lb ai/a PRE 7 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 97 b 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Liberty L 32 fl oz/a lb ai/a MPOST 8 Balance Flexx 2 SC 3 fl oz/a lb ai/a PRE 97 b 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a PRE Laudis 3.5 SC 3 fl oz/a lb ai/a MPOST 9 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 10 Impact 2.8 SC 1 fl oz/a lb ai/a MPOST 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 11 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Warrant 3 L 3 pt/a 1.13 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 12 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a 99 a Sequence 5.25 EW 2.5 pt/a 1.64 lb ai/a MPOST Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 13 Halex GT 4.39 SC 3.6 pt/a 1.98 lb ai/a MPOST 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST NIS 100 L 0.25 % v/v 1 qt/100 gal MPOST 21

39 Pest Code AMARE AMARE AMARE Pest Name Redroot pigweed Redroot pigweed Redroot pigweed Crop Name Rating Date Jun Jul Aug Rating Type CONTRO CONTRO CONTRO Rating Unit % % % 14 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Zidua 85 WG 2 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 15 Capreno 3.45 SC 3 fl oz/a lb ai/a MPOST 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST 16 Impact 2.8 SC 0.75 fl oz/a lb ai/a MPOST 0 c 99 a 99 a Atrazine 4 L 1 qt/a 1 lb ai/a MPOST Status 56 WG 2.5 oz/a lb ai/a MPOST MSO 100 L 0.5 % v/v 2 qt/100 gal MPOST LSD (P=.05) CV Means followed by same letter do not significantly differ (P=.05, LSD) Back 22

40 (RSCNQS314) The Pennsylvania State University BASF Overlapping Residual Programs in Reduced Till Corn Trial ID: RSCNQS314 Protocol ID: corn714 Location: Rock Springs Investigator: Dr. William S. Curran Trial Summary This trial examined some BASF herbicides including Zidua, Sharpen, and Verdict and compared them to some industry standards. The primary weeds were giant foxtail, common lambsquarters, common ragweed, velvetleaf and some redroot pigweed. Corn was planted on May 9 and PRE s were applied on May 13 and POST on June 13. A very minor amount of injury was noted early in the season but it did not persist. Rainfall was good for herbicide activation and all PRE s worked well and control of all weeds was at least 90% and corn yields were good. Crop Description Crop 1: ZEAMX Zea mays Corn Variety: DKC47-35RIB BBCH Scale: BCOR Planting Date: May Planting Method: PLANTD Rate, Unit: S/A Depth, Unit: 1.75 IN Row Spacing, Unit: 30 IN Seed Bed: MEDIUM Soil Moisture: GOOD Pest 1 Type: W Code: SETFA Setaria faberi Common Name: Giant foxtail Pest Description Pest 2 Type: W Code: ABUTH Abutilon theophrasti Common Name: velvetleaf Pest 3 Type: W Code: AMBEL Ambrosia artemisiifolia Common Name: Common ragweed Pest 4 Type: W Code: POLPY Persicaria pensylvanica Common Name: Pennsylvania smartweed Pest 5 Type: W Code: CHEAL Chenopodium album Common Name: Common lambsquarters Plot Width, Unit: 10 FT Plot Length, Unit: 30 FT Plot Area, Unit: 300 FT2 Replications: 3 Site and Design Study Design: RACOBL Randomized Complete Block (RCB) A B Application Date: May Jun Time of Day: 9:00AM 11:AM Application Method: SPRAY SPRAY Application Timing: PRE MPOST Application Placement: BROADC BROADC Applied By: DDL DDL Air Temperature, Unit: 72 F 74 F % Relative Humidity: Wind Velocity, Unit: 1 MPH 3 MPH Wind Direction: W W Dew Presence (Y/N): N no N no Soil Temperature, Unit: 65 F 69 F Soil Moisture: SLIWET SLIWET % Cloud Cover: Application Description 23