Skip to main content
    • Aa
    • Aa

Weed Management in Glyphosate-Resistant Corn with Glyphosate, Halosulfuron, and Mesotrione

  • Walter E. Thomas (a1), Ian C. Burke (a1) and John W. Wilcut (a1)

Four field studies were conducted at the Peanut Belt Research Station near Lewiston Woodville, NC, in 2000, 2001, and 2002 to evaluate crop tolerance, weed control, grain yield, and net returns in glyphosate-resistant corn with various herbicide systems. Preemergence (PRE) treatment options included no herbicide, atrazine at 1.12 kg ai/ha, or atrazine plus metolachlor at 1.68 kg ai/ha. Postemergence (POST) treatment options included glyphosate at 1.12 kg ai/ha as either the isopropylamine salt or the diammonium salt, either alone or in mixtures with mesotrione at 105 g ai/ha plus crop oil concentrate at 1% (v/v) or halosulfuron at 53 g ai/ha plus 0.25% (v/v) nonionic surfactant. All response variables were independent of glyphosate formulation. Addition of metolachlor to atrazine PRE improved large crabgrass and goosegrass control but did not always improve Texas panicum control. POST control of these annual grasses was similar with glyphosate alone or in mixture with halosulfuron or mesotrione. Glyphosate POST controlled common lambsquarters and common ragweed 89 and 93%, respectively. Glyphosate plus halosulfuron POST provided more effective yellow nutsedge control than glyphosate POST. Atrazine PRE or atrazine plus metolachlor PRE followed by any glyphosate POST treatment controlled Ipomoea spp. at least 93%. Glyphosate plus mesotrione in total POST systems always provided greater control of Ipomoea spp. than glyphosate alone. The highest yielding treatments always included glyphosate POST, either with or without a PRE herbicide treatment. Similarly, systems that included any glyphosate POST treatment had the highest net returns.

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.

G. R. Armel , H. P. Wilson , R. J. Richardson , and T. E. Hines 2003a. Mesotrione combinations in no-till corn (Zea mays). Weed Technol. 17:111116.

G. R. Armel , H. P. Wilson , R. J. Richardson , and T. E. Hines 2003b. Mesotrione alone and in mixture with glyphosate in glyphosate-resistant corn (Zea mays). Weed Technol. 17:680685.

S. D. Askew , W. A. Bailey , G. H. Scott , and J. W. Wilcut 2002. Economic assessment of weed management for transgenic and nontransgenic cotton in tilled and nontilled systems. Weed Sci. 50:512520.

P. E. Blanchard and W. W. Donald 1997. Herbicide contamination of groundwater beneath claypan soils in north-central Missouri. J. Environ. Qual. 26:16121621.

D. D. Buhler , G. W. Randall , W. C. Koskinen , and D. L. Wyse 1993. Atrazine and alachlor losses from subsurface tile drainage of clay loam soil. J. Environ. Qual. 22:583588.

I. C. Burke , W. E. Thomas , J. F. Spears , and J. W. Wilcut 2003a. Influence of environmental factors on broadleaf signalgrass (Brachiaria platyphylla) seed germination. Weed Sci. 51:683689.

I. C. Burke , W. E. Thomas , J. F. Spears , and J. W. Wilcut 2003b. Influence of environmental factors on after-ripened crowfootgrass (Dactyloctenium aegyptium) seed germination. Weed Sci. 51:342347.

D. Chachalis , K. N. Reddy , C. D. Elmore , and M. L. Steele 2001. Herbicide efficacy, leaf structure, and spray droplet contact angle among Ipomoea species and smallflower morningglory. Weed Sci. 49:628634.

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.

W. H. Faircloth , M. G. Patterson , C. D. Monks , and W. R. Goodman 2001. Weed management programs for glyphosate-tolerant cotton (Gossypium hirsutum). Weed Technol. 15:544551.

J. A. Ferrell and W. W. Witt 2002. Comparison of glyphosate with other herbicides for weed control in corn (Zea mays): efficacy and economics. Weed Technol. 16:701706.

D. W. Fischer and R. G. Harvey 2002. Yellow nutsedge (Cyperus esculentus) and annual weed control in GR field corn (Zea mays). Weed Technol. 16:482487.

S. A. Gower , M. M. Loux , J. Cardina , and S. K. Harrison 2002. Effect of planting date, residual herbicide, and postemergence application timing on weed control and grain yield in glyphosate-tolerant corn (Zea mays). Weed Technol. 16:488494.

I. M. Heap 1997. The occurrence of herbicide-resistant weeds worldwide. Pestic. Sci 51:235243.

B. C. Johnson , B. G. Young , and J. L. Matthews 2002. Effect of postemergence application rate and timing of mesotrione on corn (Zea mays) response and weed control. Weed Technol. 16:414420.

W. G. Johnson , P. R. Bradley , S. E. Hart , M. L. Buesinger , and R. E. Massey 2000. Efficacy and economics of weed management in glyphosate-resistant corn (Zea mays). Weed Technol. 14:5765.

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.

R. A. Massinga , R. S. Currie , M. J. Horak , and J. Boyer Jr. 2001. Interference of Palmer amaranth in corn. Weed Sci. 49:202208.

M. S. McIntosh 1983. Analysis of combined experiments. Agron. J 75:153155.

M. Mekki and G. D. Leroux 1995. Foliar absorption and translocation of nicosulfuron and rimsulfuron in 5 annual weed species. Weed Res 35:377383.

K. A. Nelson and K. A. Renner 2002. Yellow nutsedge (Cyperus esculentus) control and tuber production with glyphosate and ALS-inhibiting herbicides. Weed Technol. 16:512519.

S. A. Nolte and B. G. Young 2002. Efficacy and economic return on investment for conventional and herbicide-resistant corn (Zea mays). Weed Technol. 16:371378.

D. J. Pantone , R. A. Young , D. D. Buhler , C. V. Eberlein , W. C. Koskinen , and F. Forcella 1992. Water quality impacts associated with pre- and postemerge applications of atrazine in maize. J. Environ. Qual. 21:567573.

S. A. Payne and L. R. Oliver 2000. Weed control programs in drilled glyphosate-resistant soybean. Weed Technol. 14:413422.

W. A. Pline , K. K. Hatzios , and E. S. Hagood 2000. Weed and herbicide-resistant soybean (Glycine max) response to glufosinate and glyphosate plus ammonium sulfate and pelargonic acid. Weed Technol. 14:667674.

E. P. Prostko , W. C. Johnson III, and B. G. Mullinix Jr. 2001. Grass control with preplant incorporated and preemergence applications of ethalfluralin and pendimethalin in peanut (Arachis hypogaea). Weed Technol. 15:3641.

G. H. Scott , S. D. Askew , and J. W. Wilcut 2002. Glyphosate systems for weed control in glyphosate-tolerant cotton (Gossypium hirsutum). Weed Technol. 16:191198.

D. L. Shaner 2000. The impact of glyphosate-tolerant crops on the use of other herbicides and on resistance management. Pest Manag. Sci 56:320326.

P. Sutton , C. Richards , L. Buren , and L. Glasgow 2002. Activity of mesotrione on resistant weeds in maize. Pest Manag. Sci 58:981984.

B. E. Tharp and J. J. Kells 2002. Residual herbicides used in combination with glyphosate and glufosinate in corn (Zea mays). Weed Technol. 16:274281.

R. D. Wauchope , T. L. Estesm , R. Allen , J. L. Baker , A. G. Hornsby , R. L. Jones , R. P. Richards , and D. I. Gustafson 2002. Predicted impact of transgenic, herbicide-tolerant corn on drinking water quality in vulnerable watersheds of the mid-western USA. Pest Manag. Sci 58:146160.

Recommend this journal

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

Weed Technology
  • ISSN: 0890-037X
  • EISSN: 1550-2740
  • URL: /core/journals/weed-technology
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: 25 *
Loading metrics...

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