International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
GROUP B/2 RESISTANT WILD MUSTARD
(Sinapis arvensis)


ALS inhibitors (B/2)

Canada, Alberta
INTRODUCTION WILD MUSTARD
Wild Mustard (Sinapis arvensis) is a dicot weed in the Brassicaceae family.  In Alberta this weed first evolved resistance to Group B/2 herbicides in 1993 and infests Canola, and Spring Barley.   Group B/2 herbicides are known as ALS inhibitors (Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)).  Research has shown that these particular biotypes are resistant to ethametsulfuron-methyl, and metsulfuron-methyl and they may be cross-resistant to other Group B/2 herbicides.

The 'Group' letters/numbers that you see throughout this web site refer to the classification of herbicides by their site of action. To see a full list of herbicides and HRAC herbicide classifications click here.

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QUIK STATS (last updated Dec 28, 2000 )

Common NameWild Mustard
SpeciesSinapis arvensis
GroupALS inhibitors (B/2)
Herbicidesethametsulfuron-methyl, and metsulfuron-methyl
LocationCanada, Alberta
Year1993
Situation(s)Canola, and Spring Barley
Contributors - (Alphabetically)Lyle Friesen, and John O'Donovan 
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NOTES ABOUT THIS BIOTYPE

AREAS FOUND

John O'Donovan
Near Wetaskiwin, Central Alberta.

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GENERAL

Hugh Beckie
Jeffers, G. M., J. T. O’Donovan, and L. M. Hall. 1996. Wild mustard (Brassica kaber) resistance to ethametsulfuron but not to other herbicides. Weed Technol. 10:847-850. Also: Hall, J. C., J. T. O’Donovan, and L. M. Hall. 1999. Basis for resistance of a wild mustard(Sinapis arvensis L.) biotype to ethametsulfuron-methyl. Weed Sci. Soc. Am. Abstr. 39:123. Also: Veldhuis, L. J., L. M. Hall, J. T. O’Donovan, W. Dyer, and J. C. Hall. 2000. Metabolism-based resistance in a wild mustard (Sinapis arvensis L.) biotype to ethametsulfuron-methyl. J. Agric. Food Chem. 48:2986-2990.

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ACADEMIC ASPECTS

Confirmation Tests

Greenhouse trials comparing a known susceptible Wild Mustard biotype with this Wild Mustard biotype have been used to confirm resistance. For further information on the tests conducted please contact the local weed scientists that provided this information.
 
Genetics

Genetic studies on Group B/2 resistant Wild Mustard have not been reported to the site.  There may be a note below or an article discussing the genetics of this biotype in the Fact Sheets and Other Literature
 
Mechanism of Resistance

Studies on the mechanism of resistance of Group B/2 resistant Wild Mustard from Alberta indicate that resistance is due to enhanced metabolism.  There may be a note below or an article discussing the mechanism of resistance in the Fact Sheets and Other Literature
 
Relative Fitness

There is no record of differences in fitness or competitiveness of these resistant biotypes when compared to that of normal susceptible biotypes.  If you have any information pertaining to the fitness of Group B/2 resistant Wild Mustard from Alberta please update the database.
 
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CONTRIBUTING WEED SCIENTISTS

LYLE FRIESEN
University Of Manitoba
Agriculture Bldg
Rua Hugo Cabral 1065 Apto 301
Winnipeg, R3T 2N2, Manitoba
Canada
Email Lyle Friesen
JOHN O'DONOVAN
Agriculture And Agri-Food Canada
Agriculture Bldg
Universidad Nacional De Mar Del Plata
Ruta Nacional 226, Km 73.5,
Beaverlodge, T0H 0C0, Alberta
Canada
Email John O'Donovan

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Alberta have been instrumental in providing you this information. Particular thanks is given to Lyle Friesen, and John O'Donovan for providing detailed information.
Herbicide Resistant Wild Mustard Globally
(Sinapis arvensis)
Herbicide Resistant Wild Mustard Globally
(Sinapis arvensis)
Drag a column header and drop it here to group by that column
Herbicide Resistant Wild Mustard Globally
(Sinapis arvensis)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Australia (New South Wales ) AustraliaNew South Wales 1996 Wheat chlorsulfuron 1 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard1139
2 Canada (Ontario) CanadaOntario1983 Corn (maize) atrazine 7 Photosystem II inhibitors (C1/5)
158Sinapis arvensisWild Mustard5065
3 Canada (Manitoba) CanadaManitoba1990 Cropland, Spring Barley, and Wheat 2,4-D, dicamba, dichlorprop, MCPA, mecoprop, and picloram 7 Synthetic Auxins (O/4)
158Sinapis arvensisWild Mustard55
4 Canada (Manitoba) CanadaManitoba1992 Canola, Cropland, Spring Barley, and Wheat ethametsulfuron-methyl, and metsulfuron-methyl 7 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard54
5 Canada (Alberta) CanadaAlberta1993 Canola, and Spring Barley ethametsulfuron-methyl, and metsulfuron-methyl 7 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard5036
6 Canada (Manitoba) CanadaManitoba1994 Cropland, Lentils, and Wheat metribuzin 7 Photosystem II inhibitors (C1/5)
158Sinapis arvensisWild Mustard56
7 Canada (Saskatchewan) CanadaSaskatchewan2002 Canola, and Cereals ethametsulfuron-methyl, imazethapyr, thifensulfuron-methyl, and tribenuron-methyl 7 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard5243
8 IranIran 2009 Winter wheat iodosulfuron-methyl-sodium, metsulfuron-methyl, sulfosulfuron, and tribenuron-methyl 79 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard5540
9 ItalyItaly 2006 Durum wheat florasulam, iodosulfuron-methyl-sodium, and tribenuron-methyl 24 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard5677
10 SpainSpain 2011 Cereals iodosulfuron-methyl-sodium, and tribenuron-methyl 38 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard5591
11 TurkeyTurkey 2001 Wheat chlorsulfuron 71 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard5164
12 TurkeyTurkey 2008 Wheat dicamba, propoxycarbazone-sodium, thifensulfuron-methyl, triasulfuron, and tribenuron-methyl 71 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
Synthetic Auxins (O/4)
158Sinapis arvensisWild Mustard5405
13 United States (North Dakota) United StatesNorth Dakota1999 Soybean cloransulam-methyl, imazethapyr, and thifensulfuron-methyl 45 ALS inhibitors (B/2)
158Sinapis arvensisWild Mustard1193
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Thursday, March 23, 2017 .  Available  www.weedscience.org
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