International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
GROUP G/9 RESISTANT JUNGLERICE
(Echinochloa colona)


EPSP synthase inhibitors (G/9)

Australia, Western Australia
INTRODUCTION JUNGLERICE
Junglerice (Echinochloa colona) is a monocot weed in the Poaceae family.  In Western Australia this weed first evolved resistance to Group G/9 herbicides in 2010 and infests Cotton, Rice, and Watermelon.   Group G/9 herbicides are known as EPSP synthase inhibitors (Inhibition of EPSP synthase).  Research has shown that these particular biotypes are resistant to glyphosate and they may be cross-resistant to other Group G/9 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 Mar 28, 2017 )

Common NameJunglerice
SpeciesEchinochloa colona
GroupEPSP synthase inhibitors (G/9)
Herbicidesglyphosate
LocationAustralia, Western Australia
Year2010
Situation(s)Cotton, Rice, and Watermelon
Contributors - (Alphabetically)Todd Gaines, and Stephen Powles 
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ACADEMIC ASPECTS

Confirmation Tests

Greenhouse trials comparing a known susceptible Junglerice biotype with this Junglerice 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 G/9 resistant Junglerice 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 G/9 resistant Junglerice from Western Australia please update the database.
 
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CONTRIBUTING WEED SCIENTISTS

TODD GAINES
Assistant Professor
Colorado State University
Bioagricultural Sciences and Pest Management
1177 Campus Delivery
Fort Collins, 80523, Colorado
United States
Email Todd Gaines
STEPHEN POWLES
Professor And Research Director
University Of Western Australia
School Of Plant Biology
2276 Dahlk Circle
Crawley, 6009, Western Australia
Australia
Email Stephen Powles
Web   : Web Site Link

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Western Australia have been instrumental in providing you this information. Particular thanks is given to Todd Gaines, and Stephen Powles for providing detailed information.
Herbicide Resistant Junglerice Globally
(Echinochloa colona)
Herbicide Resistant Junglerice Globally
(Echinochloa colona)
Drag a column header and drop it here to group by that column
Herbicide Resistant Junglerice Globally
(Echinochloa colona)
#CountryFirstYearSituationActive IngredientsSite of Action
1 ArgentinaArgentina 2009 Corn (maize), and Soybean glyphosate 48 EPSP synthase inhibitors (G/9)
78Echinochloa colonaJunglerice5544
2 Australia (New South Wales ) AustraliaNew South Wales 2004 Sorghum atrazine 1 Photosystem II inhibitors (C1/5)
78Echinochloa colonaJunglerice5336
3 Australia (New South Wales ) AustraliaNew South Wales 2007 Fallow glyphosate 1 EPSP synthase inhibitors (G/9)
78Echinochloa colonaJunglerice5297
4 Australia (Queensland) AustraliaQueensland2009 Fallow glyphosate 1 EPSP synthase inhibitors (G/9)
78Echinochloa colonaJunglerice5514
5 Australia (Western Australia) AustraliaWestern Australia2010 Cotton, Rice, and Watermelon glyphosate 1 EPSP synthase inhibitors (G/9)
78Echinochloa colonaJunglerice5581
6 BoliviaBolivia 2006 Rice, and Soybean cyhalofop-butyl, fenoxaprop-P-ethyl, fluazifop-P-butyl, and haloxyfop-P-methyl 4 ACCase inhibitors (A/1)
78Echinochloa colonaJunglerice5413
7 BoliviaBolivia 2006 Rice bispyribac-sodium 4 ALS inhibitors (B/2)
78Echinochloa colonaJunglerice5414
8 ColombiaColombia 1988 Rice propanil 10 PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice71
9 ColombiaColombia 2000 Rice quinclorac 10 Synthetic Auxins (O/4)
78Echinochloa colonaJunglerice5141
10 Costa RicaCosta Rica 1987 Rice propanil 11 PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice72
11 Costa RicaCosta Rica 1994 Rice fenoxaprop-P-ethyl 11 ACCase inhibitors (A/1)
78Echinochloa colonaJunglerice75
12 Costa RicaCosta Rica 1998 Rice azimsulfuron, fenoxaprop-P-ethyl, and propanil 11 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice5147
13 Costa RicaCosta Rica 2013 Rice bispyribac-sodium, cyhalofop-butyl, imazapic, and imazapyr 11 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
78Echinochloa colonaJunglerice7886
14 EgyptEgypt 2012 Rice bispyribac-sodium 15 ALS inhibitors (B/2)
78Echinochloa colonaJunglerice7896
15 El SalvadorEl Salvador 1999 Rice propanil 83 PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice5150
16 GuatemalaGuatemala 1999 Rice propanil 84 PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice5152
17 HondurasHonduras 1999 Rice propanil 85 PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice5151
18 IranIran 2009 Sugarcane for sugar ametryn, atrazine, and metribuzin 79 Photosystem II inhibitors (C1/5)
78Echinochloa colonaJunglerice5486
19 NicaraguaNicaragua 2000 Rice fenoxaprop-P-ethyl 60 ACCase inhibitors (A/1)
78Echinochloa colonaJunglerice5148
20 PanamaPanama 1999 Rice propanil 82 PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice5153
21 United States (California) United StatesCalifornia2008 Corn (maize), Cotton, Fencelines, Grapes, Orchards, and Roadsides glyphosate 45 EPSP synthase inhibitors (G/9)
78Echinochloa colonaJunglerice5545
22 United States (Arkansas) United StatesArkansas2011 Rice imazethapyr, propanil, and quinclorac (MOA in monocots) 45 Multiple Resistance: 3 Sites of Action
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
Cellulose inhibitors (L/26)
78Echinochloa colonaJunglerice10956
23 VenezuelaVenezuela 2000 Rice propanil 80 PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice5149
24 VenezuelaVenezuela 2008 Rice fluazifop-P-butyl, and glyphosate 80 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
EPSP synthase inhibitors (G/9)
78Echinochloa colonaJunglerice10950
25 VenezuelaVenezuela 2010 Rice bispyribac-sodium, cyhalofop-butyl, and propanil 80 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
78Echinochloa colonaJunglerice5555
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