International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
GROUP B/2 RESISTANT COMMON WATERPLANTAIN
(Alisma plantago-aquatica)

Inhibition of Acetolactate Synthase (B/2)

Spain
INTRODUCTION COMMON WATERPLANTAIN
Common Waterplantain (Alisma plantago-aquatica) is a monocot weed in the Alismataceae family.  In Spain this weed first evolved resistance to Group B/2 herbicides in 2000 and infests Rice.   Group B/2 herbicides are known as Inhibition of Acetolactate Synthase (Inhibition of Acetolactate Synthase ).  Research has shown that these particular biotypes are resistant to bensulfuron-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 Jan 16, 2003 )

Common NameCommon Waterplantain
SpeciesAlisma plantago-aquatica
GroupInhibition of Acetolactate Synthase (B/2)
Herbicidesbensulfuron-methyl
LocationSpain
Year2000
Situation(s)Rice
Contributors - (Alphabetically)Jean-Pierre Claude 
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ACADEMIC ASPECTS

Confirmation Tests

Field, and Greenhouse trials comparing a known susceptible Common Waterplantain biotype with this Common Waterplantain 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 Common Waterplantain 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 B/2 resistant Common Waterplantain from Spain please update the database.
 
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CONTRIBUTING WEED SCIENTISTS

JEAN-PIERRE CLAUDE
Du Pont De Nemours (france) Sa
European Research And Development Center
800 N. Lindbergh Blvd.
V2A,
Nambsheim, F-68740
France
Email Jean-Pierre Claude

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Spain have been instrumental in providing you this information. Particular thanks is given to Jean-Pierre Claude for providing detailed information.
Herbicide Resistant Common Waterplantain Globally
(Alisma plantago-aquatica)
Herbicide Resistant Common Waterplantain Globally
(Alisma plantago-aquatica)
Drag a column header and drop it here to group by that column
Herbicide Resistant Common Waterplantain Globally
(Alisma plantago-aquatica)
#CountryFirstYearSituationActive IngredientsSite of Action
1 ChileChile 2005 Rice bensulfuron-methyl 8 Inhibition of Acetolactate Synthase (B/2)
 		4Alisma plantago-aquaticaCommon Waterplantain5267
2 ItalyItaly 1994 Rice bensulfuron-methyl, and cinosulfuron 24 Inhibition of Acetolactate Synthase (B/2)
 		4Alisma plantago-aquaticaCommon Waterplantain1130
3 PortugalPortugal 1995 Rice bensulfuron-methyl 34 Inhibition of Acetolactate Synthase (B/2)
 		4Alisma plantago-aquaticaCommon Waterplantain169
4 SpainSpain 2000 Rice bensulfuron-methyl 38 Inhibition of Acetolactate Synthase (B/2)
 		4Alisma plantago-aquaticaCommon Waterplantain5138
5 TurkeyTurkey 2009 Rice azimsulfuron, bensulfuron-methyl, and penoxsulam 71 Inhibition of Acetolactate Synthase (B/2)
 		4Alisma plantago-aquaticaCommon Waterplantain5529
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