Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-05T06:41:26.825Z Has data issue: false hasContentIssue false
  • English
  • Français

Comparison of Ropewick Applicators for Control of Johnsongrass (Sorghum halepense) in Cotton (Gossypium hirsutum) with Glyphosate

Published online by Cambridge University Press:  12 June 2017

Paul E. Keeley ,
Charles H. Carter ,
Robert J. Thullen  and
John H. Miller
Paul E. Keeley
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
Charles H. Carter
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
Robert J. Thullen
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
John H. Miller
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
Get access Rights & Permissions [Opens in a new window]

Abstract

Three annual applications of glyphosate [N-(phosphonomethyl)glycine] with three ropewick applicators were compared to hoeing and cultivation for the control of johnsongrass [Sorghum halepense (L.) Pers. ♯3 SORHA] in cotton (Gossypium hirsutum L. ‘Acala SJ-2′) in 1980 and 1981. The three applicators provided about equal control of johnsongrass. Averaged over treatments, years, and dates of application, plots treated with glyphosate contained 83% fewer live johnsongrass shoots (14/m2) than cultivated control plots (84/m2) 2 to 3 weeks after each application. Glyphosate-treated plots yielded an average of 81% more seed cotton (2010 kg/ha) than cultivated control plots (1110 kg/ha). However, yields of treated plots averaged 33% less than plots maintained weed-free by hoeing. Although applications of glyphosate reduced johnsongrass populations 83%, the competitive effect of johnsongrass on cotton prior to the initiation of treatments, plus the competition from escape plants between treatments, prevented cotton from yielding normally.

Keywords

Cotton yieldscotton standscotton ginningand cotton fiber properties
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 32 , Issue 4 , July 1984 , pp. 431 - 435
Copyright
Copyright © 1984 by the 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. Abernathy, J. R. 1980. Recirculating sprayers and rope applicators. Proc. West. Cotton Prod. Conf. Pages 44–45.Google Scholar
2. Andersen, R. N., Ford, J. H., and Lueschen, W. E. 1982. Controlling volunteer corn (Zea mays) in soybeans (Glycine max) with diclofop and glyphosate. Weed Sci. 30:132–136.Google Scholar
3. Arvik, J. H. 1981. Glyphosate update. Proc. Beltwide Cotton Prod. Res. Conf.–Cotton Weed Sci. Res. Conf. 5:168–169.Google Scholar
4. Buchanan, G. A. and Burns, E. R. 1971. Weed competition in cotton. I. Sicklepod and tall morningglory. Weed Sci. 19:576–579.Google Scholar
5. Buchanan, G. A. and Burns, E. R. 1971. Weed competition in cotton. II. Cocklebur and redroot pigweed. Weed Sci. 19:580–582.CrossRefGoogle Scholar
6. Carlson, D. R. and Burnside, O. C. 1981. Use of the recirculating sprayer to control tall weed escapes in crops. Weed Sci. 29:174–179.Google Scholar
7. Dale, J. E. 1979. Application equipment for Roundup – the rope wick applicator. Proc. Beltwide Cotton Prod. Res. Conf.–Cotton Weed Sci. Res. Conf. 3:138–141.Google Scholar
8. Dale, J. E. 1981. Control of johnsongrass (Sorghum halepense) and volunteer corn (Zea mays) in soybeans (Glycine max). Weed Sci. 29:708–711.Google Scholar
9. Dale, J. E. 1981. Wick-applied glyphosate reduces johnsongrass populations. Proc. South. Weed Sci. Soc. 34:297–299.Google Scholar
10. Derting, C. W. 1981. Correlation of rope wick design and components with glyphosate performance. Proc. South. Weed Sci. Soc. 34:305–310.Google Scholar
11. Downs, J. P. 1982. Guidelines for using Roundup herbicide. Weeds Today. 13(2):10–11.Google Scholar
12. Keeley, P. E. and Thullen, R. J. 1981. Control and competitiveness of johnsongrass (Sorghum halepense) in cotton (Gossypium hirsutum). Weed Sci. 29:356–359.CrossRefGoogle Scholar
13. McWhorter, C. G. 1980. Innovative methods of postemergence weed control. Proc. South. Weed Sci. Soc. 33:14–20.Google Scholar
14. McWhorter, C. G. and Baldwin, F. L. 1981. Advances in johnsongrass control. Weeds Today. 12(2):12–15.Google Scholar
15. McWhorter, C. G., Jordan, T. N., and Wills, G. D. 1980. Translocation of 14C-glyphosate in soybeans (Glycine max) and johnsongrass (Sorghum halepense). Weed Sci. 28:113–118.Google Scholar
16. Revelle, W. F. 1982. The development and manufacture of wick rope for herbicide application. Proc. South. Weed Sci. Soc. 35:399–408.Google Scholar
17. Schneider, G. L., Koehler, C. B., Schepers, J. S., and Burnside, O. C. 1982. Roller applicator for shattercane (Sorghum bicolor) control in row crops. Weed Sci. 30:301–306.Google Scholar
18. Vargis, R. and Fischer, B. 1982. Postemergence control of johnsongrass. Proc. Beltwide Cotton Prod. Res. Conf.–Cotton Weed Sci. Res. Conf. 6:238–240.Google Scholar
19. Weaver, D. 1980. Rope wick application–Results in 1979. Proc. Beltwide Cotton Prod. Res. Conf.–Cotton Weed Sci. Res. Conf. 4:189.Google Scholar
20. Wiese, A. F. and Lavake, D. E. 1980. Experiences with a rope wick applicator. Proc. South. Weed Sci. Soc. 33:353–355.Google Scholar
21. Wu, C. H. and Derting, C. W. 1981. Operational variable and glyphosate performance through ropewick applicators. Proc. South. Weed Sci. Soc. 34:301–304.Google Scholar