Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-22T18:38:27.138Z Has data issue: false hasContentIssue false
  • English
  • Français

Spray carrier pH effect on absorption and translocation of trifloxysulfuron in Palmer amaranth (Amaranthus palmeri) and Texasweed (Caperonia palustris)

Published online by Cambridge University Press:  20 January 2017

M. A. Matocha ,
L. J. Krutz ,
S. A. Senseman ,
C. H. Koger ,
K. N. Reddy  and
E. W. Palmer
L. J. Krutz
Affiliation:
Southern Weed Science Research Unit, Agricultural Research Service, U.S. Department of Agriculture, P.O. Box 350, Stoneville, MS 38776
S. A. Senseman
Affiliation:
Department of Soil and Crop Sciences, Texas Agricultural Experiment Station, Texas A&M University, College Station, TX 77843
C. H. Koger
Affiliation:
Crop Genetics and Production Research Unit, Agricultural Research Service, U.S. Department of Agriculture, P.O. Box 345, Stoneville, MS 38776
K. N. Reddy
Affiliation:
Southern Weed Science Research Unit, Agricultural Research Service, U.S. Department of Agriculture, P.O. Box 350, Stoneville, MS 38776
E. W. Palmer
Affiliation:
Syngenta Crop Protection, 118 Kennedy Flat Road, Leland, MS 38756
Get access Rights & Permissions [Opens in a new window]

Abstract

Spray carrier pH affects the solubility of sulfonylurea herbicides and, therefore, could affect absorption and subsequent translocation of these compounds in weeds. Trifloxysulfuron is a sulfonylurea herbicide developed for POST weed control in cotton, sugarcane, and turfgrass with a pKa of 4.81. The objective of this study was to evaluate the absorption and translocation of foliar-applied 14C-trifloxysulfuron in Palmer amaranth and Texasweed at pH 5, 7, and 9 over a period of 4 to 72 h after treatment (HAT). For absorption, effects of time, species, and pH were significant. Absorption averaged over species and pH increased logarithmically from 4 to 72 HAT. Absorption was greater for Palmer amaranth (88%) than for Texasweed (29%) when averaged over time and pH. Absorption averaged over species and time increased in the order of pH 5 (52%) < pH 9 (60%) = pH 7 (61%). Consequently, this translated into greater translocation of 14C-trifloxysulfuron in Texasweed when sprayed with the higher pH spray solutions. These data indicate that absorption and translocation of trifloxysulfuron in some weed species may be enhanced by increasing the pH of the spray solution by 2 pH units above the pKa.

Keywords

TrifloxysulfuronPalmer amaranth, Amaranthus palmeri S. Wats. AMAPATexasweed, Caperonia palustris (L.) St. Hil. CNPPASulfonylureapHpKaspray carrier
Type
Research Article
Information
Weed Science , Volume 54 , Issue 6 , December 2006 , pp. 969 - 973
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

Askew, S. D. and Wilcut, J. W. 2002. Absorption, translocation, and metabolism of foliar-applied trifloxysulfuron in cotton, peanut, and selected weeds. Weed Sci. 50:293–298.CrossRefGoogle Scholar
Camacho, R. F. and Moshier, L. J. 1991. Absorption, translocation, and activity of CGA-136872, DPX-V9360, and glyphosate in rhizome Johnsongrass (Sorghum halepense). Weed Sci. 39:354–357.Google Scholar
Carey, J. B., Penner, D., and Kells, J. J. 1997. Physiological basis for nicosulfuron and primisulfuron selectivity in five plant species. Weed Sci. 45:22–30.Google Scholar
Gillespie, G. R. 1994. Basis for the differential response of quackgrass (Elytrigia repens) biotypes to rimsulfuron. Weed Sci. 42:8–12.Google Scholar
Green, J. M. and Cahill, W. R. 2003. Enhancing the biological activity of nicosulfuron with pH adjusters. Weed Sci. 17:338–345.Google Scholar
Green, J. M. and Hale, T. 2005a. Increasing and decreasing pH to enhance the biological activity of nicosulfuron. Weed Technol. 19:468–475.CrossRefGoogle Scholar
Green, J. M. and Hale, T. 2005b. Increasing the biological activity of weak acid herbicides by increasing and decreasing the pH of the spray mixture. J. ASTM Int. 2:1–10.CrossRefGoogle Scholar
Holloway, J. C. Jr., Wells, J. W., and Hudetz, M. 2000. CGA-362622 application timing, rates, and weed spectrum in cotton. Proc. South. Weed Sci. Soc. 53:240.Google Scholar
Hudetz, M., Foery, W., Wells, J., and Soares, J. E. 2000. CGA 362622, a new low rate Novartis post-emergent herbicide for cotton and sugarcane. Proc. South. Weed Sci. Soc. 53:163–166.Google Scholar
Koger, C. H., Price, A. J., and Reddy, K. N. 2005. Weed control and cotton response to combinations of glyphosate and trifloxysulfuron. Weed Technol. 19:113–121.Google Scholar
Koger, C. H., Reddy, K. N., and Poston, D. H. 2004. Factors affecting seed germination, seedling emergence, and survival of Texasweed (Caperonia palustris). Weed Sci. 52:989–995.Google Scholar
Liu, Z. Q. 2002. Lower formulation pH does not enhance bentazone uptake in to plant foliage. N. Z. Plant Prot. 55:163–167.Google Scholar
Manley, B. S., Hatzios, K. K., and Wilson, H. P. 1999. Absorption, translocation, and metabolism of chlorimuron and nicosulfuron in imidazolinone-resistant and susceptible smooth pigweed (Amaranthus hybridus). Weed Technol. 13:759–764.CrossRefGoogle Scholar
Matocha, M. E. and Baumann, P. A. 2004. Texasweed management in Texas cotton. Page 26 in Proceedings of the 2005 Texas Plant Protection Conference. Conroe, TX: Texas Plant Protection Association.Google Scholar
McElroy, J. S., Yelverton, F. H., Burke, I. C., and Wilcut, J. W. 2004. Absorption, translocation, and metabolism of halosulfuron and trifloxysulfuron in green kyllinga (Kyllinga brevifolia) and false green kyllinga (K. gracillima). Weed Sci. 52:704–710.Google Scholar
McIntosh, M. S. 1983. Analysis of combined experiments. Agron. J. 75:153–155.Google Scholar
Morgan, G. D., Baumann, P. A., and Chandler, J. M. 2001. Competitive impact of Palmer amaranth (Amaranthus palmeri) on cotton (Gossypium hirsutum) development and yield. Weed Technol. 15:408–412.CrossRefGoogle Scholar
Nalewaja, J. D. and Matysiak, R. 2000. Spray deposits from nicosulfuron with salts that affect efficacy. Weed Technol. 14:740–749.Google Scholar
Nalewaja, J. D., Matysiak, R., and Woznica, Z. inventors; North Dakota State University, assignee. 1997, Aug 19. Adjuvants for herbicidal compositions. U.S. patent 5,658,855.Google Scholar
Porterfield, D., Wilcut, J. W., Wells, J. W., and Clewis, S. B. 2003. Weed management with CGA-362622 in transgenic and nontransgenic cotton. Weed Sci. 51:1002–1009.Google Scholar
Richardson, R. J., Wilson, H. P., Armel, G. R., and Hines, T. E. 2004. Mixtures of glyphosate with CGA 362622 for weed control in glyphosate-resistant cotton (Gossypium hirsutum). Weed Technol. 18:16–22.Google Scholar
Smith, D. T., Baker, R. V., and Steele, G. L. 2000. Palmer amaranth (Amaranthus palmeri) impacts on yield, harvesting, and ginning in dryland cotton (Gossypium hirsutum). Weed Technol. 14:122–126.CrossRefGoogle Scholar
Troxler, S. C., Burke, I. C., Wilcut, J. W., Smith, W. D., and Burton, J. 2003. Absorption, translocation, and metabolism of foliar-applied trifloxysulfuron in purple and yellow nutsedge (Cyperus rotundus and C. esculentus). Weed Sci. 51:13–18.Google Scholar
Vencill, V. K. 2002. Herbicide Handbook, 8th ed. Lawrence, KS: Weed Science Society of America. 493 p.Google Scholar
Wilcut, J. W., Askew, S. D., and Porterfield, D. 2000. Weed management in non-transgenic and transgenic cotton with CGA 362622. Proc. South. Weed Sci. Soc. 53:27.Google Scholar
Wilcut, J. W., Wehtje, G. R., Patterson, M. G., Cole, T. A., and Hicks, T. V. 1989. Absorption, translocation, and metabolism of foliar-applied chlorimuron in soybeans (Glycine max), peanut (Arachis hypogaea), and selected weeds. Weed Sci. 37:175–180.Google Scholar