Hostname: page-component-8448b6f56d-42gr6 Total loading time: 0 Render date: 2024-04-16T16:43:21.606Z Has data issue: false hasContentIssue false
  • English
  • Français

Low Volume Invert Emulsions for Purple Nutsedge (Cyperus rotundus) Control

Published online by Cambridge University Press:  12 June 2017

Charles T. Bryson ,
Gene D. Wills  and
Paul C. Quimby
Charles T. Bryson
Affiliation:
USDA/ARS, South. Weed Sci. Lab., Stoneville, MS 38776
Gene D. Wills
Affiliation:
Delta Branch, Miss. Agric. For. Exp. Stn., Stoneville, MS 38776
Paul C. Quimby
Affiliation:
USDA/ARS, Rangeland Weeds Lab., Bozeman, MT 59717
Get access Rights & Permissions [Opens in a new window]

Abstract

Greenhouse experiments were conducted in 1989 at Stoneville, MS to evaluate the efficacy of fluridone and MSMA applied at 0.3 and 1.0 kg ai ha-1, respectively, either alone or in combination and with or without 0.1 M ammonium sulfate on purple nutsedge. The herbicides were applied at 19 L ha-1 in an oil-water, invert emulsion (low-volume) and at 187 L ha-1 in water with a nonionic surfactant (0.25% v/v) (high-volume). Purple nutsedge control with both herbicides alone or in combination was greater with the low-volume than with the high-volume application. Addition of MSMA to fluridone, or of ammonium sulfate to fluridone plus MSMA did not enhance purple nutsedge control over fluridone alone applied in low volume. The addition of ammonium sulfate to fluridone alone applied in low volume reduced purple nutsedge control.

Keywords

Fluridone, 1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4(1H)-pyridinoneMSMA, monosodium salt of methylarsonic acidpurple nutsedge, Cyperus rotundus L. ♯3 CYPROHerbicide efficacyapplication volumeCYPRO
Type
Notes
Information
Weed Technology , Volume 4 , Issue 4 , December 1990 , pp. 907 - 909
Copyright
Copyright © 1990 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

1. Buhler, D. D., and Burnside, O. C. 1983. Effect of spray components on glyphosate toxicity to annual grasses. Weed Sci. 31:124–130.Google Scholar
2. Holm, L. G., Plucknett, D. L., Pancho, J. W., and Herberger, J. P. 1977. The World's Worst Weeds. Distribution and Biology. Univ. Press Hawaii, Honolulu, p. 609.Google Scholar
3. McWhorter, C. G., Fulgham, F. E., and Barrentine, W. L. 1988. An air-assist spray nozzle for applying herbicides in ultra low-volume. Weed Sci. 36:118–121.Google Scholar
4. McWhorter, C. G., and Barrentine, W. L. 1988. Spread of paraffinic oil on surface of johnsongrass (Sorghum halepense). Weed Sci. 36:111–117.Google Scholar
5. Kent, L. M., Wills, G. D., and Shaw, D. R. 1990. Effects of environment and adjuvant on the translocation and toxicity of imazethapyr in pitted morningglory. Proc. South. Weed Sci. Soc. 43:(In press).Google Scholar
6. Quimby, P. C. Jr., Fulgham, F. E., Trammell, C. A., Sewell, W., and Powell, J. 1989. Low viscosity invert emulsions: new systems for herbicide application. Proc. South. Weed Sci. Soc. 42:337.Google Scholar
7. U.S. Dep. Agric., Agric. Res. Serv. 1970. Selected Weeds of the United States. Agric. Handb. p. 366–463.Google Scholar
8. Wills, G. D., and McWhorter, C. G. 1985. Effect of inorganic salts on the toxicity and translocation of glyphosate and MSMA in purple nutsedge (Cyperus rotundus). Weed Sci. 33:755–761.Google Scholar
9. Wills, G. D. 1987. Description of purple and yellow nutsedge (Cyperus rotundus and C. esculentus). Weed Technol. 1:2–9.Google Scholar