International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
HRAC GROUP 1 (LEGACY A) RESISTANT PERSIAN DARNEL
(Lolium persicum)


Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)

Canada, Saskatchewan
INTRODUCTION PERSIAN DARNEL
Persian Darnel (Lolium persicum) is a monocot weed in the Poaceae family.  In Saskatchewan this weed first evolved resistance to Group 1 (Legacy A) herbicides in 2004 and infests Spring Barley.   Group 1 (Legacy A) herbicides are known as Inhibition of Acetyl CoA Carboxylase (Inhibition of Acetyl CoA Carboxylase ).  Research has shown that these particular biotypes are resistant to tralkoxydim and they may be cross-resistant to other Group 1 (Legacy A) 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 Jan 14, 2008 )

Common NamePersian Darnel
SpeciesLolium persicum
GroupInhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Herbicidestralkoxydim
LocationCanada, Saskatchewan
Year2004
Situation(s)Spring Barley
Contributors - (Alphabetically)Hugh Beckie 
Edit this Case  |  Add New Case of Resistance  |  Add Note

ACADEMIC ASPECTS

Confirmation Tests

Greenhouse trials comparing a known susceptible Persian Darnel biotype with this Persian Darnel 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 1 resistant Persian Darnel 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 1 (Legacy A) resistant Persian Darnel from Saskatchewan please update the database.
 
Edit Case  |  Add Note  |  Add Article  |  Add New Case  |  Help

CONTRIBUTING WEED SCIENTISTS

HUGH BECKIE
Professor of Crop Weed Science...Canadian Expat
University of Western Australia
Australian Herbicide Resistance Initiative
School of Agriculture and Environment
35 Stirling Highway
Crawley, 6009, Western Australia
Australia
Email Hugh Beckie

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Saskatchewan have been instrumental in providing you this information. Particular thanks is given to Hugh Beckie for providing detailed information.
Herbicide Resistant Persian Darnel Globally
(Lolium persicum)
Herbicide Resistant Persian Darnel Globally
(Lolium persicum)
Drag a column header and drop it here to group by that column
Herbicide Resistant Persian Darnel Globally
(Lolium persicum)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Canada (Saskatchewan) CanadaSaskatchewan2004 Spring Barley tralkoxydim 7 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
181Lolium persicumPersian Darnel5244
2 Canada (Alberta) CanadaAlberta2009 Spring Barley, and Wheat fenoxaprop-ethyl, pinoxaden, and tralkoxydim 7 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
181Lolium persicumPersian Darnel7832
3 United States (Montana) United StatesMontana1993 Wheat diclofop-methyl 45 Inhibition of Acetyl CoA Carboxylase ( HRAC Group 1 (Legacy A)
181Lolium persicumPersian Darnel557
Literature about Similar Cases

1
Page size:
select
Page: of 1
Items 1 to 1 of 1

1
Page size:
select
Page: of 1
Items 1 to 1 of 1
PERMISSION MUST BE OBTAINED FIRST if you intend to base a significant portion of a scientific paper on data derived from this site.
Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Sunday, November 3, 2024 .  Available  www.weedscience.org
Copyright © 1993- 2024 WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.