HRAC GROUP 2 (LEGACY B) RESISTANT SPANISH PINK MUSTARD
(Erucaria hispanica)

Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)

Israel

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INTRODUCTION SPANISH PINK MUSTARD Spanish Pink Mustard (Erucaria hispanica) is a dicot weed in the Brassicaceae family.  In Israel this weed first evolved resistance to Group 2 (Legacy B) herbicides in 2012 and infests Wheat.   Group 2 (Legacy B) herbicides are known as Inhibition of Acetolactate Synthase (Inhibition of Acetolactate Synthase ).  Research has shown that these particular biotypes are resistant to florasulam, flumetsulam, and tribenuron-methyl and they may be cross-resistant to other Group 2 (Legacy B) 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.

QUIK STATS (last updated Dec 19, 2012 ) Common Name Spanish Pink Mustard Species Erucaria hispanica Group Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B) Herbicides florasulam, flumetsulam, and tribenuron-methyl Location Israel Year 2012 Situation(s) Wheat Contributors - (Alphabetically) Maor Matzrafi, and Baruch Rubin  Edit this Case  |  Add New Case of Resistance  |  Add Note

NOTES ABOUT THIS BIOTYPE MECHANISM ALS inhibitor resistance in  Erucaria hispanica is due to a Proline 197 to Serine mutation.  Maor Matzrafi. Edit this Note  |  Add New Note

ACADEMIC ASPECTS Confirmation Tests Greenhouse, Laboratory, and None trials comparing a known susceptible Spanish Pink Mustard biotype with this Spanish Pink Mustard 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 2 resistant Spanish Pink Mustard 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 2 (Legacy B) resistant Spanish Pink Mustard from Israel please update the database.   Edit Case  |  Add Note  |  Add Article  |  Add New Case  |  Help

CONTRIBUTING WEED SCIENTISTS MAOR MATZRAFI Postdoctral Researcher University of California Department of Plant Sciences MS 4 Davis, 95616 Israel Email Maor Matzrafi 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 Maor Matzrafi, and Baruch Rubin for providing detailed information.

Herbicide Resistant Spanish Pink Mustard Globally (Erucaria hispanica) Herbicide Resistant Spanish Pink Mustard Globally (Erucaria hispanica) Drag a column header and drop it here to group by that column Herbicide Resistant Spanish Pink Mustard Globally (Erucaria hispanica) # Country Country StateName FirstYear Situation Active Ingredients CountryID Site of Action WeedID Species CommonName ResistID 1 Israel Israel   2012 Wheat florasulam, flumetsulam, and tribenuron-methyl 23 Inhibition of Acetolactate Synthase ( HRAC Group 2 (Legacy B) 286 Erucaria hispanica Spanish Pink Mustard 5703

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