Skip to main content
    • Aa
    • Aa

Glyphosate-Resistant Goosegrass (Eleusine indica) Confirmed in Tennessee

  • Thomas C. Mueller (a1), Kelly A. Barnett (a1), James T. Brosnan (a1) and Lawrence E. Steckel (a2)

Goosegrass is a problematic summer annual weed in cotton, soybean, and corn production in the southern United States. Glyphosate is labeled for POST control of goosegrass in glyphosate-resistant (GR) cotton, soybean, and corn production. A population of goosegrass in west Tennessee not controlled by glyphosate was examined in greenhouse and laboratory studies. At 21 days after treatment (DAT), a glyphosate-susceptible (SS) biotype was controlled > 90% with glyphosate at rates greater than 210 g ae ha−1. Comparatively, the GR biotype was only controlled 12% at 210 g ae ha−1. Using goosegrass control data, I50 values for GR and SS biotypes were 868 and 117 g ae ha−1, susceptibility, resulting in a resistance factor (RF) of 7.4. Treatment with glyphosate at 210 g ae ha−1 reduced fresh weight biomass of the SS biotype to 5 g per pot compared to 36 g for the GR biotype. A total of 3,360 g ae ha−1 glyphosate was required to reduce fresh weights of the GR biotype to ∼5 g per pot. Using fresh and dry weight biomass data, I50 values for the GR biotype were 3 to 10 times greater than the SS biotype. On each date from 1 to 6 DAT the SS biotype accumulated higher concentrations of shikimate than the GR biotype. Future research should evaluate strategies for managing GR goosegrass with alternative modes of action. To prevent the spread of resistance, additional research evaluating programs for managing glyphosate-susceptible goosegrass in GR crops is also warranted.

Corresponding author
Corresponding author's E-mail:
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

S. R. Baerson , D. J. Rodriquez , M. Tran , Y. Feng , N. A. Biest , and G. M. Dill 2002. Glyphosate-resistant goosegrass: identification of a mutation in the target enzyme 5-enolpyruvylshikimate-3-phosphate synthase. Plant Physiol. 129:12651275.

K. M. Binkholder , B. S. Fresenburg , T. C. Teuton , X. Xiong , and R. J. Smeda 2011. Selection of glyphosate resistant annual bluegrass (Poa annua L.) on a golf course. Weed Sci. 59:286289.

J. T. Brosnan , A. W. Thoms , P. E. McCullough , G. R. Armel , G. K. Breeden , J. C. Sorochan , and T. C. Mueller 2010. Efficacy of flazasulfuron for control of annual bluegrass (Poa annua) and perennial ryegrass (Lolium perenne) as influenced by nitrogen. Weed Sci. 58:449456.

R. S. Buker , S. T. Steed , and W. M. Stall 2002. Confirmation and control of a paraquat-tolerant goosegrass (Eleusine indica) biotype. Weed Technol. 16:309313.

A. S. Culpepper , A. C. York , R. B. Batts , and K. M. Jennings 2000. Weed management in glufosinate- and glyphosate-resistant soybean (Glycine max). Weed Technol. 14:7788.

L. J. Lee and J. Ngim 2000. A first report of glyphosate-resistant goosegrass (Eleusine indica (L) Gaertn) in Malaysia. Pest Manag. Sci. 56:336339.

S. Manalil , R. Busi , M. Renton , and S. B. Powles 2011. Rapid evolution of herbicide resistance by low herbicide dosages. Weed Sci. 59:210217.

T. C. Mueller , A. T. Ellis , J. E. Beeler , S. D. Sharma , and M. Singh 2008. Shikimate accumulation in nine weedy species following glyphosate application. Weed Res. 48:455460.

T. C. Mueller , J. Massey , R. M. Hayes , C. L. Main , and C. N. Stewart 2003. Shikimate accumulates in both glyphosate-sensitive and glyphosate-resistant horseweed (Conzya canadensis [L.] Cronq.). J. Agric. Food Chem. 51:680684.

C. H. Ng , R. Wickneswari , S. Salmijah , Y. T. Teng , and B. S. Ismail 2004b. Glyphosate resistance in Eleusine indica (L) Gaertn from different origins and polymerase chain reaction amplification of specific alleles. Aust. J. Agric. Res. 55:407414.

S. B. Powles 2008. Evolution in action: glyphosate resistant weeds threaten world crops. Outlook Pest. Manag. 19:256259.

M. M. Vila-Aiub , M. C. Balbi , P. E. Gundel , C. M. Ghersa , and S. B. Powles 2007. Evolution of glyphosate-resistant johnsongrass (Sorghum halepense) in glyphosate-resistant soybean. Weed Sci. 55:566571.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Weed Science
  • ISSN: 0043-1745
  • EISSN: 1550-2759
  • URL: /core/journals/weed-science
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Full text views

Total number of HTML views: 0
Total number of PDF views: 2 *
Loading metrics...

Abstract views

Total abstract views: 50 *
Loading metrics...

* Views captured on Cambridge Core between 20th January 2017 - 18th August 2017. This data will be updated every 24 hours.