International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
GROUP B/2 RESISTANT LOW FALSE-PIMPERNEL
(Lindernia dubia (=Lindernia dubia var. major))


ALS inhibitors (B/2)

South Korea
INTRODUCTION LOW FALSE-PIMPERNEL
Low False-pimpernel (Lindernia dubia (=Lindernia dubia var. major)) is a dicot weed in the Scrophulariaceae family.  In South Korea this weed first evolved resistance to Group B/2 herbicides in 2000 and infests Rice.   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 azimsulfuron, bensulfuron-methyl, cinosulfuron, cyclosulfamuron, ethoxysulfuron, halosulfuron-methyl, imazosulfuron, and pyrazosulfuron-ethyl 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 Dec 21, 2002 )

Common NameLow False-pimpernel
SpeciesLindernia dubia (=Lindernia dubia var. major)
GroupALS inhibitors (B/2)
Herbicidesazimsulfuron, bensulfuron-methyl, cinosulfuron, cyclosulfamuron, ethoxysulfuron, halosulfuron-methyl, imazosulfuron, and pyrazosulfuron-ethyl
LocationSouth Korea
Year2000
Situation(s)Rice
Contributors - (Alphabetically)Il-Bin Im 
Edit this Case  |  Add New Case of Resistance  |  Add Note

NOTES ABOUT THIS BIOTYPE

AREAS FOUND

Il-Bin Im
Naju, Kwandsan and Kimje of South Korea

Edit this Note  |  Add New Note
 

ACADEMIC ASPECTS

Confirmation Tests

Greenhouse trials comparing a known susceptible Low False-pimpernel biotype with this Low False-pimpernel 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 Low False-pimpernel 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 Low False-pimpernel from South Korea please update the database.
 
Edit Case  |  Add Note  |  Add Article  |  Add New Case  |  Help

CONTRIBUTING WEED SCIENTISTS

IL-BIN IM
CRO
Bio-Plant Environment Research Center
Weed Control
5306-1. BI Center. Honam University
Kwangsan, 506-714, Kwangju
South Korea
Email Il-Bin Im
Web   : Web Site Link

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in South Korea have been instrumental in providing you this information. Particular thanks is given to Il-Bin Im for providing detailed information.
Herbicide Resistant Low False-pimpernel Globally
(Lindernia dubia (=Lindernia dubia var. major))
Herbicide Resistant Low False-pimpernel Globally
(Lindernia dubia (=Lindernia dubia var. major))
Drag a column header and drop it here to group by that column
Herbicide Resistant Low False-pimpernel Globally
(Lindernia dubia (=Lindernia dubia var. major))
#CountryFirstYearSituationActive IngredientsSite of Action
1 JapanJapan 1995 Rice bensulfuron-methyl, and imazosulfuron 25 ALS inhibitors (B/2)
106Lindernia dubia (=Lindernia dubia var. major)Low False-pimpernel539
2 South KoreaSouth Korea 2000 Rice azimsulfuron, bensulfuron-methyl, cinosulfuron, cyclosulfamuron, ethoxysulfuron, halosulfuron-methyl, imazosulfuron, and pyrazosulfuron-ethyl 27 ALS inhibitors (B/2)
106Lindernia dubia (=Lindernia dubia var. major)Low False-pimpernel5132
Literature about Similar Cases

123
Page size:
select
Page: of 3
Items 1 to 5 of 14

123
Page size:
select
Page: of 3
Items 1 to 5 of 14
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.  Friday, September 20, 2019 .  Available  www.weedscience.org
Copyright © 1993- 2019 WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.