International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
MULTIPLE RESISTANT SHORTSPIKE CANARYGRASS
(Phalaris brachystachys)


Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)

Turkey
INTRODUCTION SHORTSPIKE CANARYGRASS
Shortspike Canarygrass (Phalaris brachystachys) is a monocot weed in the Poaceae family.  In Turkey this weed first evolved multiple resistance (to 2 herbicide sites of action) in 2008 and infests Wheat.  Multiple resistance has evolved to herbicides in the Groups A/1, and B/2.  These particular biotypes are known to have resistance to clodinafop-propargyl, and pyroxsulam and they may be cross-resistant to other herbicides in the Groups A/1, and B/2.

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 Oct 22, 2009 )

Common NameShortspike Canarygrass
SpeciesPhalaris brachystachys
GroupACCase inhibitors (A/1)
ALS inhibitors (B/2)
Herbicidesclodinafop-propargyl, and pyroxsulam
LocationTurkey
Year2008
Situation(s)Wheat
Contributors - (Alphabetically)Çigdem Melike Avci, and F. Nezihi Uygur 
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ACADEMIC ASPECTS

Confirmation Tests

Greenhouse trials comparing a known susceptible Shortspike Canarygrass biotype with this Shortspike Canarygrass 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 A, B/1, 2 resistant Shortspike Canarygrass 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

The mechanism of resistance for this biotype is either unknown or has not been entered in the database.  If you know anything about the mechanism of resistance for this biotype then please update the database.
 
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 multiple resistant Shortspike Canarygrass from Turkey please update the database.
 
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CONTRIBUTING WEED SCIENTISTS

ÇIGDEM MELIKE AVCI
Msc.
Cukurova University
Department Of Plant Protection
Department Of Plant Protection
Agriculturel Faculty, Cukurova University
Adana, 01330
Turkey
Email Çigdem Melike Avci
F. NEZIHI UYGUR
Prof.dr.
Cukurova University
Depart. Of Plant Protection
Cukurova University
Agricultural Faculty, Depart. Of Plant Protection
Adana, 01330
Turkey
Email F. Nezihi Uygur

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Turkey have been instrumental in providing you this information. Particular thanks is given to Çigdem Melike Avci, and F. Nezihi Uygur for providing detailed information.
Herbicide Resistant Shortspike Canarygrass Globally
(Phalaris brachystachys)
Herbicide Resistant Shortspike Canarygrass Globally
(Phalaris brachystachys)
Drag a column header and drop it here to group by that column
Herbicide Resistant Shortspike Canarygrass Globally
(Phalaris brachystachys)
#CountryFirstYearSituationActive IngredientsSite of Action
1 IranIran 2014 Winter wheat clodinafop-propargyl, diclofop-methyl, fenoxaprop-P-ethyl, and haloxyfop-methyl 79 ACCase inhibitors (A/1)
244Phalaris brachystachysShortspike Canarygrass10951
2 ItalyItaly 2001 Durum wheat, and Sugar beets clodinafop-propargyl, diclofop-methyl, pinoxaden, and sethoxydim 24 ACCase inhibitors (A/1)
244Phalaris brachystachysShortspike Canarygrass5615
3 SyriaSyria 2015 Faba beans, Potatoes, and Wheat clodinafop-propargyl, and fenoxaprop-P-ethyl 69 ACCase inhibitors (A/1)
244Phalaris brachystachysShortspike Canarygrass15058
4 TurkeyTurkey 2008 Wheat clodinafop-propargyl, and pyroxsulam 71 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
244Phalaris brachystachysShortspike Canarygrass5398
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Tuesday, March 28, 2017 .  Available  www.weedscience.org
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