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EMEAcropprotection

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Sulfosulfuron & acetochlor

Prague, 16 June 2011

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EMEAIntroduction

• Sulfosulfuron– Sulphonyl urea herbicide

– Wheat, triticale

– Annex I included

• Acetochlor– Chloroacetamide

– Corn, sunflower, soya

– Decision about Annex I inclusion in the near future

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EMEASulfosulfuron ‐Mode of action

3www.hracglobal.com

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EMEASulfosulfuron

• Sulfosulfuron is a selective herbicide for postemergencecontrol of weeds in wheat and triticale.

• It can be applied up to 2‐node stage of wheat

• Sulfosulfuron controls major cereal grass species, and somedicots– Apera spica‐venti

– Bromus spp.

– Elymus repens

– Avena fatua

– Volunteer barley

• The uses rates range from 10 – 20 g a.i./ha

• Non ionic surfactant should be mixed to the product4

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EMEASusceptibility table

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EMEAGrass weeds are significantproblem in cereal production

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EMEAIn Hungary importance of Aperais growing

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EMEAApera in Ukraine ‐ Russia

8http://www.agroatlas.ru/en/content/weeds/

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EMEAAgropyron in Ukraine ‐ Russia

9http://www.agroatlas.ru/en/content/weeds/

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EMEARegulatory situation of sulfosulfuron in the CEEU• Czech Republic – MONITOR

• Slovakia – MONITOR

• Poland – APYROS

• Ukraine – MONITOR

• Hungary ‐ ATHOS

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Apera spica-venti

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EMEAApera can take significant yield

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EMEAResults from Czech Republic

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EMEATechnical development 2010New mixtures• Focus: Apera spica‐venti

• Trials covered potential mixture partners– BIATHLON (tritosulfuron, 714 g/kg) 

– ARRAT (dicamba 50 % + tritosulfuron 25 %) 

– GRANSTAR (tribenuron.‐methil, 75 %) 

– ALLY (metsufuron‐methyl, 20 %) 

– TALTOS (aminopyralid 355 g/kg + florasulam 150 g/kg) 

– COLOMBUS (clopyralid 80 g/kg + florasulam 2,5 g/kg + fluroxypir 144 g/kg) 

– MUSTANG SE (florasulam, 6,25 g/l + 2,4‐D ester 452 g/ha)

• TREND 0,2 % used as surfactant with each treatment

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EMEAMONITOR + DuPont productsHungary, Nőtincs, 2 July

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EMEAMONITOR + BASF productsHungary, Nőtincs, 2 July

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EMEAMONITOR + Dow productsHungary, Nőtincs, 2 July

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EMEAMONITOR 13 + GRANSTAR 10Nőtincs, 27 May

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EMEAMONITOR 13 + GRANSTAR 10Vadépuszta, 29 June

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Untreated

Treated

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EMEAMONITOR 13+ALLY 20 DF 20 g/hNőtincs, 27 May

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EMEAMONITOR 13+ALLY 20 DF 20 g/hNőtincs, 27 May

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EMEAMONITOR 10 + ALLY 20 g/haPrügy, 24 June

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EMEAATHOS 13 + BIATHLON 50 g/haNőtincs, Hungary, 2 July ‘10

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Untreated

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EMEAATHOS 13 + BIATHLON 70 g/haNőtincs, Hungary, 2 July ‘10

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Untreated

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EMEAATHOS 13 + ARRAT 200 g/haNőtincs, Hungary, 27 May ‘10

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Untreated

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EMEAATHOS 13 + ARRAT 200 g/haNőtincs, Hungary, 27 May ‘10

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EMEAATHOS 13 + ARRAT 200 g/haNőtincs, Hungary, 2 July ‘10

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Untreated

Untreated

Untreated

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EMEAMONITOR 13 + TALTOS 450 WG 33 g/ha, Prügy, 24 June

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EMEAApera resistance – joint project with Uni Hohenheim, Bayer, Du Pont & MTC

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Sample collection across Europe

254 Apera samples testedout of which:168 showing resistance againstFlupyrsulfuron, 163 against Sulfosulfuron ,115 against Meso-/Iodosulf.,6 against Fenoxaprop-ethyl

Problem awarness is givenPublications to force GAPInternal as well as external

trainings

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Agropyron (Elymus) repens

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EMEASignificant yield impact

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EMEA700‐800 kg/ha yield reduction

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EMEAAgropyron susceptible tosulfosulfuron

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EMEALow rate is often sufficientVinnitsa, 8 June 2011

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MONITOR 13 g/ha 16 g/ha

19 g/ha 26 g/ha

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Bromus species - others

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Relation Brome infestation winter wheat yield(University Long Ashton, UK. 1998‐99)

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1

2

3

4

5

6

7

8

9

10

0 50 100 150 200

Plants/ m²

Yie

ldt/

ha

Treshhold Brome< 1 Plants/m²

Yield decrease @

5 plants/m2 ~ 1t

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EMEADecent Bromus control

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EMEAExcellent results on all varieties of Volunteer Barley in UKMonitor applied at 25g/ha will stop volunteer barley growing resulting in a stunted volunteer below the wheat canopy. Depending on timing barley grains will be shrivelled and not viable. Applications up until latest crop timing will have good results.

Courtesy of Manda Sansom

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Volunteer barley control fromGermany

unbehandelt:Gersten-Durchwuchs

Monitor+MonFast

©2001 B

öck

er,

BSL

Ger

lder

n

Courtesy of Wolfgang Voegler

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EMEAVolunteer barley in UkraineVinnitsa, 8 June 2011

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MONITOR 13 g/ha+surfactant

Untreated Untreated

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EMEAWheat under normal conditionsUkraine, Lviv, 8 June 2011. 

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EMEASummary

• Sulfosulfuron controls well the important grass weeds harmfulin Central‐East Europe in winter wheat

• Several mixture partners can be used to broaden activityagainst dicots

• Good agricultural practice should be followed to preventresistance development

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EMEAGAP recommendation toprevent resistance• In monoculture rotate mode of action

• Under unfavorable conditions avoid antagonizing mixturepartners or use sequential application (7‐10 days interval)

• Use the recommended rate at right timing to actively growingweeds

• Always add surfactant

• Calibrate sprayer for accurate dosing

• Avoid application at very low temperature or frost

• In oil seed rape control grasses

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EMEAcropprotection

EMEA

Acetochlor

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EMEAMode of action

45www.hracglobal.com

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EMEAMajor formulations

• MON 69447 (840 g/l acetochlor + 28 g/l furilazol)– Maize 2 – 2,5 l/ha

• Pre, early post

• All maize (grain, silage, seed, sweet)

– Sunflower 1,5 – 2 l/ha ‐ pre

• MON 69454 (450 g/l acetochlor+214 g/l terbutilazin +15 g/l furilazol)– Maize 3,5 l/ha

• Pre, early post

• All maize (grain, silage, seed, sweet)

• MON 8439 (900 g/l acetochlor)– Sunflower soyabean 1,0 – 2,5 l/ha

– Maize (grain, silage) 2,0 – 3,0 l/ha46

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EMEARegistrations in Central / EastEurope

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EMEAMajor characteristics of acetochlor• High performance against annual grasses

• Low dependence on activating rainfall

• Flexible use– Mixtures

– Timing

• 2nd most used active substance in the world

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28/09/2011 presentation title Page 49

Comparison trialsFrance, 2002, average of 8 trials

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60

70

80

90

2016 1440 1830 g/ha

New Guardian dimethenamid-P S-metolachlor

4 leaf8 leafFlowering

%

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EMEALittle activating rainfall enough

50South Dacota State University, 14 trials average

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EMEAVersatile use

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EMEAMostly grasses, HARNESS 2,5Ukraine, Vinnitsa, 8 June 2011 

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EMEAAverage conditions – GUARDIAN TETRAHungary, Tata, 5 Augustus 2004

3,5 l/ha pre-emergence 3,5 l/ha early post-emergence

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EMEADiverse weed flora – tank mixesAcetochlor + izoxaflutol broad fit

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EMEAAcetochlor+ izoxaflutolKecskemét, 4 October 2002

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Untreated

Untreated

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EMEAGUARDIAN MAX 1,5+PULSAR 1,2Nak, 10 June 2004, CL sunflower

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EMEASummary

• Acetochlor is one of the most efficient pre‐emergence activesubstances

• Acetochlor works well under dry conditions

• Acetochlor can be used in versatile ways

• No resistance developed despite extensive use.

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