International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
GROUP B/2 RESISTANT POVERTY BROME
(Bromus sterilis)


ALS inhibitors (B/2)

Germany
INTRODUCTION POVERTY BROME
Poverty Brome (Bromus sterilis) is a monocot weed in the Poaceae family.  In Germany this weed first evolved resistance to Group B/2 herbicides in 2017 and infests Wheat.   Group B/2 herbicides are known as ALS inhibitors (Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)).  Research has shown that these particular biotypes are resistant to propoxycarbazone-sodium 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 Jun 26, 2018 )

Common NamePoverty Brome
SpeciesBromus sterilis
GroupALS inhibitors (B/2)
Herbicidespropoxycarbazone-sodium
LocationGermany
Year2017
Situation(s)Wheat
Contributors - (Alphabetically)Elke Bergmann, Dagmar Rissel, and Lena Ulber 
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ACADEMIC ASPECTS

Confirmation Tests

Greenhouse trials comparing a known susceptible Poverty Brome biotype with this Poverty Brome 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 Poverty Brome 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 Poverty Brome from Germany please update the database.
 
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CONTRIBUTING WEED SCIENTISTS

ELKE BERGMANN
Landesanstalt für Landwirtschaft und Gartenbau
Dezernat Pflanzenschutz
Strenzfelder Allee 22
Bernburg, 06406, Saxony-Anhalt
Germany
Email Elke Bergmann
DAGMAR RISSEL
Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants
Institute for Plant Protection in Field Crops and Grassland
Messeweg 11-12
Braunschweig, 38104, Brunswick
Germany
Email Dagmar Rissel
LENA ULBER
Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants
Institute for Plant Protection in Field Crops and Grassland
Messeweg 11-12
Braunschweig, 38104, Brunswick
Germany
Email Lena Ulber

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Germany have been instrumental in providing you this information. Particular thanks is given to Elke Bergmann, Dagmar Rissel, and Lena Ulber for providing detailed information.
Herbicide Resistant Poverty Brome Globally
(Bromus sterilis)
Herbicide Resistant Poverty Brome Globally
(Bromus sterilis)
Drag a column header and drop it here to group by that column
Herbicide Resistant Poverty Brome Globally
(Bromus sterilis)
#CountryFirstYearSituationActive IngredientsSite of Action
1 FranceFrance 2009 Wheat iodosulfuron-methyl-sodium, mesosulfuron-methyl, propoxycarbazone-sodium, and pyroxsulam 17 ALS inhibitors (B/2)
289Bromus sterilisPoverty Brome9931
2 GermanyGermany 2012 Cereals, and Rapeseed cycloxydim, and propaquizafop 18 ACCase inhibitors (A/1)
289Bromus sterilisPoverty Brome6741
3 GermanyGermany 2017 Wheat propoxycarbazone-sodium 18 ALS inhibitors (B/2)
289Bromus sterilisPoverty Brome17143
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Thursday, November 15, 2018 .  Available  www.weedscience.org
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