International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
GROUP C1/5 RESISTANT WILD MUSTARD
(Sinapis arvensis)


Photosystem II inhibitors (C1/5)

Canada, Ontario
INTRODUCTION WILD MUSTARD
Wild Mustard (Sinapis arvensis) is a dicot weed in the Brassicaceae family.  In Ontario this weed first evolved resistance to Group C1/5 herbicides in 1983 and infests Corn (maize).   Group C1/5 herbicides are known as Photosystem II inhibitors (Inhibition of photosynthesis at photosystem II).  Research has shown that these particular biotypes are resistant to atrazine and they may be cross-resistant to other Group C1/5 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
GroupPhotosystem II inhibitors (C1/5)
Herbicidesatrazine
LocationCanada, Ontario
Year1983
Situation(s)Corn (maize)
Contributors - (Alphabetically)Hugh Beckie 
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NOTES ABOUT THIS BIOTYPE

AREAS FOUND

Hugh Beckie
Glengarry County, Eastern Ontario

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GENERAL

Hugh Beckie
A. Ali, R. D. McLaren, and V. Souza Machado. 1986. Chloroplastic resistance to triazine herbicides in Sinapis arvensis L. (wild mustard). Weed Res. 26:39-44. Also: G. R. Stephenson, M. D. Dykstra, R. D. McLaren, and A. S. Hamill. Agronomic practices influencing triazine-resistant weed distribution in Ontario. Weed Technol. 4:199-207.

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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 C1/5 resistant Wild Mustard indicate that the inheritance is determined by a one gene, dominant, cytoplasmic trait.  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 C1/5 resistant Wild Mustard from Ontario indicate that resistance is due to an altered target site.  There may be a note below or an article discussing the mechanism of resistance in the Fact Sheets and Other Literature
 
Relative Fitness

Triazine resistant weeds often exhibit a lower relative fitness when compared to susceptible biotypes.  The most common mutation conferring triazine resistance (Ser 264 to Gly mutation of the psbA gene) also causes a reduction in CO2 fixation, quantum yield, and seed and biomass production.  There is no record in this database referring specifically to fitness studies on Group C1/5 resistant Wild Mustard from Ontario.
 
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CONTRIBUTING WEED SCIENTISTS

HUGH BECKIE
Research Scientist
Agriculture & Agri-Food Canada, Science & Technology Branch
Herbicide-Resistant & Novel-Trait Plants
107 Science Place
Saskatoon, S7N 0X2, Saskatchewan
Canada
Email Hugh Beckie

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Ontario have been instrumental in providing you this information. Particular thanks is given to Hugh Beckie 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
Literature about Similar Cases

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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Monday, November 20, 2017 .  Available  www.weedscience.org
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