International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
(Echium plantagineum)

ALS inhibitors (B/2)

Australia, Western Australia
Patersons Curse (Echium plantagineum) is a dicot weed in the Boraginaceae family.  In Western Australia this weed first evolved resistance to Group B/2 herbicides in 1997 and infests Cereals.   Group B/2 herbicides are known as ALS inhibitors (Inhibition of Acetolactate Synthase ).  Research has shown that these particular biotypes are resistant to chlorsulfuron 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.

If we do not have a picture for this weed, or you can provide a better picture (scan, digital camera etc) please please e-mail it to us.

QUIK STATS (last updated Nov 20, 2000 )

Common NamePatersons Curse
SpeciesEchium plantagineum
GroupALS inhibitors (B/2)
LocationAustralia, Western Australia
Contributors - (Alphabetically)Abul Hashem 
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Confirmation Tests

Greenhouse trials comparing a known susceptible Patersons Curse biotype with this Patersons Curse biotype have been used to confirm resistance. For further information on the tests conducted please contact the local weed scientists that provided this information.

Genetic studies on Group B/2 resistant Patersons Curse 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 Patersons Curse from Western Australia please update the database.
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Senior Research Officer (weed Science)
Agriculture Western Australia
Department Of Agriculture And Food Wa
Hampton Roads Ag Res And Ext Center
1444 Diamond Springs Rd,
Northam, 6401, Western Australia
Email Abul Hashem


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 Abul Hashem for providing detailed information.
Herbicide Resistant Patersons Curse Globally
(Echium plantagineum)
Herbicide Resistant Patersons Curse Globally
(Echium plantagineum)
Drag a column header and drop it here to group by that column
Herbicide Resistant Patersons Curse Globally
(Echium plantagineum)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Australia (South Australia) AustraliaSouth Australia1997 Cereals, and Pastures chlorsulfuron, and metosulam 1 ALS inhibitors (B/2)
186Echium plantagineumPatersons Curse1136
2 Australia (Western Australia) AustraliaWestern Australia1997 Cereals chlorsulfuron 1 ALS inhibitors (B/2)
186Echium plantagineumPatersons Curse5030
3 BrazilBrazil 2015 Cereals, and Wheat metsulfuron-methyl 5 ALS inhibitors (B/2)
186Echium plantagineumPatersons Curse12033
Literature about Similar Cases

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