International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
HRAC GROUP 1 (LEGACY A) RESISTANT LITTLE SEED CANARY GRASS
(Phalaris minor)


Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)

Israel
INTRODUCTION LITTLE SEED CANARY GRASS
Little seed Canary grass (Phalaris minor) is a monocot weed in the Poaceae family.  In Israel this weed first evolved resistance to Group 1 (Legacy A) herbicides in 1993 and infests Wheat.   Group 1 (Legacy A) herbicides are known as Inhibition of Acetyl CoA Carboxylase (Inhibition of Acetyl CoA Carboxylase ).  Research has shown that these particular biotypes are resistant to fenoxaprop-ethyl and they may be cross-resistant to other Group 1 (Legacy A) 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 Sep 15, 2000 )

Common NameLittle seed Canary grass
SpeciesPhalaris minor
GroupInhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Herbicidesfenoxaprop-ethyl
LocationIsrael
Year1993
Situation(s)Wheat
Contributors - (Alphabetically)Baruch Rubin 
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NOTES ABOUT THIS BIOTYPE

AREAS FOUND

Baruch Rubin
Gilat Experiment Station.

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ACADEMIC ASPECTS

Confirmation Tests

Field, Greenhouse, and Laboratory trials comparing a known susceptible Little seed Canary grass biotype with this Little seed Canary grass 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 HRAC Group 1 resistant Little seed Canary grass 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 Group 1 (Legacy A) resistant Little seed Canary grass from Israel please update the database.
 
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CONTRIBUTING WEED SCIENTISTS

BARUCH RUBIN
Professor
Hebrew University Of Jerusalem
Inst. Plant Sci. & Genetics In Agriculture
Faculty Of Agric.
Food & Environm.
Rehovot, 76100, Israel
Israel
Email Baruch Rubin

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Israel have been instrumental in providing you this information. Particular thanks is given to Baruch Rubin for providing detailed information.
Herbicide Resistant Little seed Canary grass Globally
(Phalaris minor)
Herbicide Resistant Little seed Canary grass Globally
(Phalaris minor)
Drag a column header and drop it here to group by that column
Herbicide Resistant Little seed Canary grass Globally
(Phalaris minor)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Australia (Victoria) AustraliaVictoria2012 Wheat clodinafop-propargyl 1 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
127Phalaris minorLittle seed Canary grass7838
2 IndiaIndia 1991 Wheat isoproturon 21 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
127Phalaris minorLittle seed Canary grass222
3 IndiaIndia 1994 Wheat diclofop-methyl, and pinoxaden 21 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
127Phalaris minorLittle seed Canary grass7815
4 IndiaIndia 2006 Wheat clodinafop-propargyl, fenoxaprop-ethyl, isoproturon, mesosulfuron-methyl, pinoxaden, pyroxsulam, and sulfosulfuron 21 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase ( HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
127Phalaris minorLittle seed Canary grass5324
5 IndiaIndia 2013 Wheat iodosulfuron-methyl-Na, and mesosulfuron-methyl 21 Inhibition of Acetolactate Synthase ( HRAC Group 2 (Legacy B)
127Phalaris minorLittle seed Canary grass7816
6 IranIran 2004 Winter wheat clodinafop-propargyl, diclofop-methyl, fenoxaprop-ethyl, pinoxaden, and tralkoxydim 79 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
127Phalaris minorLittle seed Canary grass5377
7 IsraelIsrael 1993 Wheat fenoxaprop-ethyl 23 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
127Phalaris minorLittle seed Canary grass111
8 MexicoMexico 1996 Wheat clodinafop-propargyl, fenoxaprop-ethyl, fluazifop-butyl, pinoxaden, sethoxydim, and tralkoxydim 29 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
127Phalaris minorLittle seed Canary grass478
9 PakistanPakistan 2015 Wheat fenoxaprop-ethyl 86 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
127Phalaris minorLittle seed Canary grass15074
10 South AfricaSouth Africa 1999 Pastures, and Wheat clodinafop-propargyl, diclofop-methyl, fenoxaprop-ethyl, haloxyfop-methyl, iodosulfuron-methyl-Na, mesosulfuron-methyl, propaquizafop, quizalofop-ethyl, and sulfosulfuron 37 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase ( HRAC Group 2 (Legacy B)
127Phalaris minorLittle seed Canary grass5194
11 United States (California) United StatesCalifornia2001 Onions clethodim, fenoxaprop-ethyl, fluazifop-butyl, and sethoxydim 45 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
127Phalaris minorLittle seed Canary grass5163
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