Hostname: page-component-76fb5796d-vvkck Total loading time: 0 Render date: 2024-04-26T05:11:06.206Z Has data issue: false hasContentIssue false
  • English
  • Français

Efficacy and Dissipation of Pyroxasulfone and Three Chloroacetamides in a Tennessee Field Soil

Published online by Cambridge University Press:  20 January 2017

Thomas C. Mueller  and
Lawrence E. Steckel
Thomas C. Mueller*
Affiliation:
Department of Plant Sciences, The University of Tennessee, Knoxville, TN 37996
Lawrence E. Steckel
Affiliation:
Department of Plant Sciences, The University of Tennessee, Knoxville, TN 37996
*
Corresponding author's E-mail: tmueller@utk.edu
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted in Knoxville, TN, over a 2-yr period (2007 and 2008) to determine the field dissipation rate and efficacy of pyroxasulfone, acetochlor, dimethenamid, and s-metolachlor to broadleaf signalgrass. Depending on rainfall patterns, pyroxasulfone at 209 g ai ha−1 provided broadleaf signalgrass control of > 75%, which was equal to or superior to acetochlor at 1,740 g ai ha−1, dimethenamid at 1,500 g ai ha−1 and s-metolachlor at 1,420 g ai ha−1. Pyroxasulfone provided residual control into the growing season and provides a tool for resistance management of later-emerging weeds. Herbicide dissipation was rapid in all soils (half-life usually < 20 d), although it was slower in a dry year. The order of herbicide dissipation and half-life in days in the 2 yr was acetochlor (3.5, 5 d) > dimethenamid (5, 9 d) > s-metolachlor (8.8, 27 d) > pyroxasulfone (8.2, > 71 d). There was poor correlation between observed weed control at 45 d after treatment and chemically determined herbicide concentrations at that same time, with ∼ 40% difference in 2007 and ∼ 50% difference in 2008.

Keywords

Acetochlordimethenamidpyroxasulfone, s-metolachlorbroadleaf signalgrass, Urochloa platyphylla (Nash) R. D. WebsterAcetochlordimethenamidKIH-485metolachlor
Type
Soil, Air, and Water
Information
Weed Science , Volume 59 , Issue 4 , December 2011 , pp. 574 - 579
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Anonymous. 2010. Tennessee Agricultural Statistics Service. http://www.nass.usda.gov/tn. Accessed: June 8, 2011.Google Scholar
Anonymous. 2011. Global Technical Bulletin: Pyroxasulfone. Tokyo Kumiai Chemical Industry. 6 p.Google Scholar
Blumhorst, M. and Mueller, T. C. 1997. Quality control procedures in herbicide field dissipation studies. Weed Technol. 11:832–837.Google Scholar
Brown, B. A., Hayes, R. M., Tyler, D. D., and Mueller, T. C. 1996. Effect of long-term cover crop and tillage system on fluometuron dissipation from surface soil. Weed Sci. 44:171–175.Google Scholar
Gallaher, K. and Mueller, T. C. 1996. Effect of crop presence on persistence of atrazine, metribuzin, and clomazone in surface soil. Weed Sci. 44:698–703.Google Scholar
Geier, P. W., Stahlman, P. W., and Frihauf, J. C. 2006. KIH-485 and s-metolachlor efficacy comparisons in conventional and no-tillage corn. Weed Technol. 20:622–626.Google Scholar
Geier, P. W., Stahlman, P. W., Regehr, D. L., and Olson, B. L. 2009. Preemergence herbicide efficacy and phytotoxicity in grain sorghum. Weed Technol. 23:197–201.Google Scholar
King, S. R. and Garcia, J. O. 2008. Annual broadleaf control with KIH-485 in glyphosate-resistant furrow-irrigated corn. Weed Technol. 22:420–424.Google Scholar
King, S. R., Ritter, R. L., Hagood, E. S., and Menbere, H. 2007. Control of acetolactate synthase–resistant shattercane (Sorghum bicolor) in field corn with KIH-485. Weed Technol. 21:578–582.Google Scholar
Knezevic, S. Z., Datta, A., Scott, J., and Porpiglia, P. J. 2009. Dose–response curves of KIH-485 for preemergence weed control in corn. Weed Technol. 23:34–39.Google Scholar
Mueller, T. C. and Hayes, R. M. 1997. Effect of tillage and soil-applied herbicides on broadleaf signalgrass (Brachiaria platyphylla) control in corn (Zea mays). Weed Technol. 11:698–703.Google Scholar
Mueller, T. C., Shaw, D. R., and Witt, W. W. 1999. Relative dissipation of acetochlor, alachlor, metolachlor and SAN 582 from three surface soils. Weed Technol. 13:341–346.Google Scholar
Sikkema, S. R., Soltani, N., Sikkema, P. H., and Robinson, D. E. 2008. Tolerance of eight sweet corn (Zea mays L.) hybrids to pyroxasulfone. Hortscience. 43:170–172.Google Scholar
Soltani, N., Nurse, R. E., Robinson, D. E., and Sikkema, P. H. 2008. Response of pinto and small red Mexican beans (Phaseolus vulgaris L.) to pre-plant incorporated herbicides. Weed Biol. Manag. 8:25–30.Google Scholar
Steele, G. L., Porpiglia, P. J., and Chandler, J. M. 2005. Efficacy of KIH-485 on Texas panicum (Panicum texanum) and selected broadleaf weeds in corn. Weed Technol. 19:866–869.Google Scholar
Tanetani, Y., Kaku, K., Kawai, K., Fujioka, T., and Shiminizu, T. 2009. Action mechanism of a novel herbicide, pyroxasulfone. Pestic. Biochem. Physiol. 95:47–55.Google Scholar