The Effects of Herbicide Carryover on Cover...

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The Effects of Herbicide Carryover on Cover Crops

Transcript of The Effects of Herbicide Carryover on Cover...

Page 1: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

TheEffectsofHerbicideCarryoveronCoverCrops

Page 2: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

ObjectiveTodeterminewhichcornandsoybeanherbicidesaremostlikelytocarryoverandcauseinjurytocovercropspecies.

Page 3: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

General:Fieldexperimentswereconductedin2013-2015inColumbia,MO.CornandsoybeanwereplantedinMay/June.AllherbicideprogramstestedwerePOSTapplicationsandappliedinlateJunetoearlyJuly.CoverCropPlantingDates:Sept.10or11,2013-2014SeedingRates(lb/A):Wheat= 120

CerealRye= 110 Italianryegrass= 25 Oats= 70 CrimsonClover= 30 AustrianWinterPea= 50 HairyVetch= 20 TillageRadish= 8

CoverCropCarryoverResearch-Methodology

Page 4: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

InfluenceofSoybeanHerbicideTreatmentsonFallCoverCropStand(2013-2015)

CoverCropSpeciesHerbicideTreatment Rate

WinterWheat

TillageRadish

CerealRye

CrimsonClover

WinterOat

AustrianPea

AnnualRyegrass

HairyVetch

--product/A-- --------%StandReductionrelativetonon-treated,28daysafteremergence--------

Spartan 8flozsValor 2.5ozsSencor 0.5lbAuthorityFirst 6.4ozsClassic 1.5ozsFlexstar 20flozsCobra 12.5flozsPursuit 4flozsFirstrate 0.6ozSynchronyXP 0.375ozDualIIMagnum 1.33ptsWarrant 1.5qtsZidua 3ozsPrefix 2pts

©KevinBradley,Univ.Missouri

NostandreductioninanyyearStandreductionin1of3yearsStandreductionin≥2of3years

Page 5: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

InfluenceofSoybeanHerbicideTreatmentsonFallCoverCropBiomass(2013-2015)

CoverCropSpeciesHerbicideTreatment Rate

WinterWheat

TillageRadish

CerealRye

CrimsonClover

WinterOat

AustrianPea

AnnualRyegrass

HairyVetch

--product/A-- --------%BiomassReductionrelativetonon-treated,28daysafteremergence--------

Spartan 8flozsValor 2.5ozsSencor 0.5lbAuthorityFirst 6.4ozsClassic 1.5ozsFlexstar 20flozsCobra 12.5flozsPursuit 4flozsFirstrate 0.6ozSynchronyXP 0.375ozDualIIMagnum 1.33ptsWarrant 1.5qtsZidua 3ozsPrefix 2pts

©KevinBradley,Univ.Missouri

NobiomassreductioninanyyearBiomassreductionin1of3yearsBiomassreductionin≥2of3years

Page 6: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

CarryoverofPOSTSoybeanTreatmentstoTillageRadishNon-treated20ozsFlexstar12.5ozsCobra

4ozsPursuit0.6ozFirstrate0.375ozSynchronyXP

1.5qtsWarrant3ozsZidua2ptsPrefix

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CarryoverofPOSTSoybeanTreatmentstoCerealRyeNon-treated20ozsFlexstar12.5ozsCobra

4ozsPursuit0.6ozFirstrate0.375ozSynchronyXP

1.5qtsWarrant3ozsZidua2ptsPrefix

Page 8: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

Non-treated,AnnualRyegrass

©KevinBradley,Univ.Missouri

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3ozsZidua,AnnualRyegrass

©KevinBradley,Univ.Missouri

Page 10: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

InfluenceofCornHerbicideTreatmentsonFallCoverCropStand(2013-2015)

CoverCropSpeciesHerbicideTreatment Rate

WinterWheat

TillageRadish

CerealRye

CrimsonClover

WinterOat

AustrianPea

AnnualRyegrass

HairyVetch

--product/A-- --------%StandReductionrelativetonon-treated,28daysafteremergence--------

Atrazine 2qtsCallisto 3flozsLaudis 3flozsImpact 3/4flozBalanceFlexx 5flozsStinger ½ptPython 1ozResolve 1ozAccentQ 0.9ozSurestart+Atra 1.75pt+1qtHalexGT+Atra 4pt+1qtCapreno 3flozsZidua 3ozs

©KevinBradley,Univ.Missouri

NostandreductioninanyyearStandreductionin1of3yearsStandreductionin≥2of3years

Page 11: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

InfluenceofCornHerbicideTreatmentsonFallCoverCropBiomass(2013-2015)

CoverCropSpeciesHerbicideTreatment Rate

WinterWheat

TillageRadish

CerealRye

CrimsonClover

WinterOat

AustrianPea

AnnualRyegrass

HairyVetch

--product/A-- --------%BiomassReductionrelativetonon-treated,28daysafteremergence--------

Atrazine 2qtsCallisto 3flozsLaudis 3flozsImpact 3/4flozBalanceFlexx 5flozsStinger ½ptPython 1ozResolve 1ozAccentQ 0.9ozSurestart+Atra 1.75pt+1qtHalexGT+Atra 4pt+1qtCapreno 3flozsZidua 3ozs

©KevinBradley,Univ.Missouri

NobiomassreductioninanyyearBiomassreductionin1of3yearsBiomassreductionin≥2of3years

Page 12: The Effects of Herbicide Carryover on Cover Cropsmccc.msu.edu/wp-content/uploads/2017/08/MO_2015_cover-crop-ca… · General: Field experiments were conducted in 2013-2015 in Columbia,

ConclusionsHerbicidecarryoverinjuryoncovercropspeciesisgoingtovaryfromyeartoyear,largelyduetorainfallandtimeofapplicationThegeneralorderofsensitivityofcovercropstoherbicidecarryover,fromgreatesttoleastsensitive:tillageradish>Austrianwinterpea>crimsonclover=annualryegrass>winterwheat=winteroats>hairyvetch=cerealryeSoybeanherbicidetreatmentsthatweremostinjurioustocovercrops:fomesafen(Flexstar/Prefix),pyroxasulfone(Zidua),imazethapyr(Pursuit),acetochlor(Warrant),sulfentrazone(Authorityproducts)Cornherbicidetreatmentsthatweremostinjurioustocovercrops:topramezone(Impact),mesotrione(Callisto,HalexGT,etc.)clopyralid(Stinger,SureStart),isoxaflutole(BalanceFlexx),pyroxasulfone(Zidua,etc.),nicosulfuron(AccentQ,etc.),


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Sustainable Crop Rotations with Brassica Cover Cropsmccc.msu.edu/wp-content/uploads/2016/10/OH_2015... · • Brassicas (radish, kale, rape) grow quickly and recycle nutrients & reduce

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TROUBLESHOOTING MONO ETHYLENE GLYCOL CARRYOVER · 2019-06-03 · TROUBLESHOOTING MONO ETHYLENE GLYCOL CARRYOVER IN A CANADIAN GAS PLANT1 "There is nothing more deceptive than an obvious

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