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Broadleaf Weed Control in Soybean (Glycine max) with CGA-277476 and Four Postemergence Herbicides

Published online by Cambridge University Press:  20 January 2017

Eric W. Palmer
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Box 9555, Mississippi State, MS 39762
David R. Shaw*
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Box 9555, Mississippi State, MS 39762
J. C. Holloway Jr.
Affiliation:
Novartis Crop Protection Corp., Delta Research Station, Greenville, MS 38701
*
Corresponding author's E-mail: [email protected].

Abstract

Field research was conducted at three locations in Mississippi to evaluate CGA-277476 tank mixtures with four broadleaf herbicides for possible improvement of broadleaf weed control. Tank mixtures in this research were typically additive, although some instances of antagonism were noted. Control of morningglory (Ipomoea) species and hemp sesbania (Sesbania exaltata) was not consistently improved by the addition of acifluorfen, chlorimuron, fomesafen, or imazaquin to 59 or 79 g ai/ha CGA-277476. However, when a large population of weeds was present, the addition of acifluorfen, chlorimuron, or fomesafen to 59 or 79 g/ha CGA-277476 improved control over CGA-277476 alone. Prickly sida (Sida spinosa) was not controlled more than 68% with any treatment in this study; however, horse purslane (Trianthema portulacastrum) was controlled at least 90% with either 79 g/ha CGA-277476 alone or tank-mixed with acifluorfen, fomesafen, chlorimuron, or imazaquin. The addition of CGA-277476 to acifluorfen or fomesafen did not improve control over acifluorfen or fomesafen alone on any of the weeds evaluated; however, the addition of CGA-277476 to imazaquin improved hemp sesbania control over imazaquin alone. Tank mixtures did not result in yields greater than CGA-277476 alone in areas with moderate weed pressure, whereas in areas with severe weed pressure, tank mixtures improved soybean (Glycine max) yield over CGA-277476 alone.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anonymous. 1996. Expert Herbicide. Greensboro, NC: Novartis Crop Protection Corp Technical Bull. CGA-220-00005-A. 4 p.Google Scholar
Anonymous. 1998. Weed Control Guidelines for Mississippi. Mississippi State, MS: Mississippi State University, Mississippi Cooperative Extension Service Pub. 1532.Google Scholar
Askew, S. D., Street, J. E., and Shaw, D. R. 1998. Herbicide combinations for red rice (Oryza sativa) control in soybean (Glycine max). Weed Technol. 12: 103107.Google Scholar
Claus, J. S. 1987. Chlorimuron-ethyl (Classic): a new broadleaf postemergence herbicide in soybean. Weed Technol. 1: 114115.Google Scholar
Colby, S. R. 1967. Calculating synergistic and antagonistic responses of herbicide combinations. Weeds 15: 2022.Google Scholar
Congleton, W. F., Vancantfort, A. M., and Lignowski, E. M. 1987. Imazaquin (Scepter): a new soybean herbicide. Weed Technol. 1: 186188.CrossRefGoogle Scholar
DeFelice, M. S., Brown, W. B., Aldrich, R. J., Sims, B. D., Judy, D. T., and Guethle, D. R. 1989. Weed control in soybeans (Glycine max) with reduced rates of postemergence herbicides. Weed Sci. 37: 365374.Google Scholar
Devlin, D. L., Long, J. H., and Maddux, L. D. 1991. Using reduced rates of postemergence herbicides in soybeans (Glycine max). Weed Technol. 5: 834840.Google Scholar
Green, J. M. 1991. Maximizing herbicide efficiency with mixtures and expert systems. Weed Technol. 5: 894897.CrossRefGoogle Scholar
Gressel, J. and Segel, L. A. 1990. Modeling the effectiveness of herbicide rotations and mixtures as strategies to delay or preclude resistance. Weed Technol. 4: 186198.CrossRefGoogle Scholar
Holshouser, D. L. and Coble, H. D. 1990. Compatability of sethoxydim with five postemergence broadleaf herbicides. Weed Technol. 4: 128133.Google Scholar
Holt, J. S., Powles, S. B., and Holtum, J.A.M. 1993. Mechanisms and agronomic aspects of herbicide resistance. Annu. Rev. Plant Physiol. Plant Mol. Biol. 44: 203209.CrossRefGoogle Scholar
King, C. A. and Oliver, L. R. 1992. Application rate and timing of acifluorfen, bentazon, chlorimuron, and imazaquin. Weed Technol. 6: 526534.Google Scholar
Lee, S. D. and Oliver, L. R. 1982. Efficacy of acifluorfen on broadleaf weeds. Times and methods for application. Weed Sci. 30: 520526.Google Scholar
Minton, B. W., Kurtz, M. E., and Shaw, D. R. 1989. Barnyardgrass (Echinochloa crus-galli) control with grass and broadleaf weed herbicide combinations. Weed Sci. 37: 223227.Google Scholar
Monks, C. D., Wilcut, J. W., and Richburg, J. S. III. 1993. Broadleaf weed control in soybean (Glycine max) with chlorimuron plus acifluorfen or thifensulfuron mixtures. Weed Technol. 7: 317321.Google Scholar
Palmer, E. W., Shaw, D. R., and Holloway, J. C. Jr. 1999. Influence of CGA-277476 on efficacy of postemergence graminicides. Weed Technol. 13: 4853.Google Scholar
Scott, R. C., Shaw, D. R., Ratliff, R. L., and Newsom, L. J. 1998. Synergism of grass weed control with postemergence combinations of dimethenamid and fluazifop-p, imazethapyr, or sethoxydim. Weed Technol. 12: 268274.Google Scholar
Shaw, D. R. and Wesley, M. T. 1992. Interactions of diphenylether herbicides with chlorimuron and imazaquin. Weed Technol. 6: 345351.Google Scholar
Shaw, D. R. and Wesley, M. T. 1993. Interacting effects on absorption and translocation from tank mixtures of ALS-inhibiting and diphenylether herbicides. Weed Technol. 7: 693698.CrossRefGoogle Scholar
Shaw, D. R. and Wixson, M. B. 1991. Postemergence combinations of imazaquin or imazethapyr with AC 263,222 for weed control in soybean (Glycine max). Weed Sci. 39: 644649.Google Scholar
Shaw, D. R., Ratnayake, S., and Smith, C. A. 1990. Effects of herbicide application timing on johnsongrass (Sorghum halepense) and pitted morningglory (Ipomoea lacunosa) control. Weed Technol. 4: 900903.Google Scholar
Vidrine, P. R., Reynolds, D. B., and Griffin, J. L. 1992. Postemergence hemp sesbania (Sesbania exaltata) control in soybean (Glycine max). Weed Technol. 6: 374377.CrossRefGoogle Scholar
Vidrine, P. R., Reynolds, D. B., and Griffin, J. L. 1993. Weed control in soybean (Glycine max) with lactofen plus chlorimuron. Weed Technol. 7: 311316.CrossRefGoogle Scholar
Wesley, M. T. and Shaw, D. R. 1992. Interactions of diphenylether herbicides with chlorimuron and imazaquin. Weed Technol. 6: 345351.Google Scholar
Westberg, D. E. and Coble, H. D. 1992. Effect of acifluorfen on the absorption, translocation, and metabolism of chlorimuron in certain weeds. Weed Technol. 6: 412.Google Scholar
Wrubel, R. P. and Gressel, J. 1994. Are herbicide mixtures useful for delaying the rapid evolution of resistance? A case study. Weed Technol. 8: 635648.Google Scholar