Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-23T08:33:13.796Z Has data issue: false hasContentIssue false
  • English
  • Français

Johnsongrass Control with DPX-V9360 and CGA-136872 in Corn (Zea mays) in Virginia

Published online by Cambridge University Press:  12 June 2017

Chester L. Foy  and
Harold L. Witt
Chester L. Foy
Affiliation:
Dep. Plant Pathol., Physiol., Weed Sci., Va Polytech. Inst. State Univ., Blacksburg, VA 24061
Harold L. Witt
Affiliation:
Dep. Plant Pathol., Physiol., Weed Sci., Va Polytech. Inst. State Univ., Blacksburg, VA 24061
Get access Rights & Permissions [Opens in a new window]

Abstract

Five field experiments were conducted at two locations in Virginia during 1988–89 to evaluate DPX-V9360 and CGA-136872 for postemergence control of johnsongrass in field corn grown under no-till and conventional conditions. DPX-V9360 at rates of 35 (except in no-till plots), 52, and 69 g ai ha-1 applied to 8-leaf johnsongrass was 88 to 98% effective in 1988. CGA-136872 at 25, 49, and 99 g ha-1 was 80% effective at the highest rate. Applications of these herbicides to 6-leaf johnsongrass resulted in 69% or less control. DPX-V9360 at 35, 52, and 69 g ha-1 and CGA-136872 at 20 and 40 g ha-1 applied to johnsongrass up to 48 cm in height provided 77 to 97% control at 7 WAT3 in an excellent stand of conventionally planted corn during 1989. Crop yields were more than doubled with herbicide treatments relative to yields in control plots. At a second location where crop damage caused by other factors resulted in a weak stand, DPX-V9360 provided 61 to 96% control compared to 29 to 56% control with CGA-136872.

Keywords

CGA-136872, 2-[[[[[4,6-bis(difluoromethoxy)-2-pyrimidinyl]amino]carbonyl]amino]sulfonyl] benzoic acid methyl esterDPX-V9360, 3-pyridinecarboxamide, 2-(((4,6-dimethoxy-pyrimidin-2-yl)aminocarbonyl))aminosulfonyl)))-N,N-dimethylcorn, Zea mays L.johnsongrass, Sorghum halepense (L.) Pers. ♯4 SORHAAdjuvantno-tillconventional tillageSORHA
Type
Research
Information
Weed Technology , Volume 4 , Issue 3 , September 1990 , pp. 615 - 619
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. Anonymous. 1988. Beacon™ Herbicide. Technical Release. Agricultural Division, CIBA-Geigy Corporation, Greensboro, NC. 8 p.Google Scholar
2. Anonymous. 1988. DPX-V9360. Experimental Herbicide for Corn. Technical Bull. E. I. du Pont de Nemours and Co. Inc., Agricultural Products Dep., Wilmington, DE. 6 p.Google Scholar
3. Beyer, E. M., Duffy, M. J., Hay, J. V., and Schlueter, D. D. 1987. Sulfonylurea herbicides, p. 117–189 in Kearney, P. C. and Kaufman, D. D., eds., Herbicides: Chemistry, Degradation, and Mode of Action, Vol. 3. Dekker, NY.Google Scholar
4. Brown, R. A., Hayes, R. M., Rhodes, G. N. Jr., and Ashburn, E. L. 1989. Removal of johnsongrass interference in corn with CGA-136872 and DPX-V9360. Proc. South. Weed Sci. Soc. 42:47. (Abstr.).Google Scholar
5. Camacho, R. F., and Moshier, L. J. 1990. Influence of plant height and absorption site on activity of CGA-136872, DPX-V9360, and KIH-2665 in rhizome johnsongrass [Sorghum halepense (L.) Pers.]. Abstr. Weed Sci. Soc. Am., p. 64.Google Scholar
6. Chandler, J. M., and Holshouser, D. L. 1989. Corn and johnsongrass response to sulfonylurea herbicides. Proc. South. Weed Sci. Soc. 42:52. (Abstr.).Google Scholar
7. Dekker, J. H., Cern, A. C., and Porpiglia, P. 1989. Differential resistance to CGA-136872 amongst genotypes of Zea mays . Abstr. Weed Sci. Soc. Am., p. 3.Google Scholar
8. Foy, C. L., and Witt, H. L. 1989. Candidate postemergence herbicides for selective control of perennial johnsongrass (Sorghum halepense) in corn (Zea mays). Va. J. Sci. 40(2):117.Google Scholar
9. Foy, C. L., and Witt, H. L. 1990. Johnsongrass control and crop response to DPX-V9360 in corn. Proc. South. Weed Sci. Soc. 43:(In press).Google Scholar
10. Gillespie, G. R., Porpiglia, P. J., and Peek, J. W. 1990. Influence of application variables on the herbicidal activity of CGA-136872. Abstr. Weed Sci. Soc. Am., p. 6.Google Scholar
11. Hagood, E. S., Wilcut, J. W., Wilson, H. P., Ritter, R. L., and Webb, F. J. 1990. Weed control in corn. p. 53–68 in Best Management Guide for Field Crops. Va. Coop. Ext. Serv., Pub. 456-015.Google Scholar
12. Herrmann, J. E., Rhodes, G. N. Jr., and Hayes, R. M. 1989. Efficacy of new postemergence herbicides in corn. Proc. South. Weed Sci. Soc. 42:49. (Abstr.).Google Scholar
13. Johnson, W. G., Frans, R. E., and McClelland, M. R. 1989. Weed control and crop response to DPX-V9360 (Accent) in corn. Proc. South. Weed Sci. Soc. 42:45. (Abstr.).Google Scholar
14. Kuratle, H., Hanagan, M., Kenyon, W. H. and Strachan, S.D. 1988. DPX-V9360-A new selective postemergence herbicide for corn. Abstr. Weed Sci. Soc. Am., p. 12.Google Scholar
15. McWhorter, C. G. 1989. History, biology, and control of johnsongrass. Rev. Weed Sci. 4:85–121.Google Scholar
16. Moshier, L. J., Camacho, R. F., Morshita, D. W., and Devlin, D. L. 1990. Rhizome johnsongrass [Sorghum halepense (L.) Pers.] control in corn with CGA-136872, DPX-V9360, and KIH-2665. Abstr. Weed Sci. Soc. Am., p. 8.Google Scholar
17. Mueller, T. C., Bridges, D. C., and Banks, P. A. 1989. Postemergence johnsongrass control in corn. Proc. Sooth. Weed Sci. Soc. 42:44. (Abstr.).Google Scholar
18. Ngouajio, M., and Hagood, E. S. 1990. Response of weeds and corn varieties to DPX-V9360 and CGA-136872. Proc. South. Weed Sci. Soc. 43:(In press).Google Scholar
19. Obrigawitch, T. T., Kenyon, W. H., and Kuratle, H. 1990. Effect of application timing on rhizome johnsongrass (Sorghum halepense) control with DPX-V9360. Weed Sci. 38:45–49.CrossRefGoogle Scholar
20. Porpiglia, P. R., Collins, H. A., and Peek, J. W. 1988. CGA-136872–A new corn herbicide. Abstr. Weed Sci. Soc. Am., p. 13.Google Scholar
21. Reynolds, D. B., Vidrine, P. R., Griffin, J. L., Richard, P. A., and Perritt, A. L. 1989. Rate by timing response of new postemergence herbicides in corn. Proc. South. Weed Sci. Soc. 42:53. (Abstr.).Google Scholar
22. Stevens, W. E., and Coats, G. E. 1989. Herbicide evaluations in corn. Proc. South. Weed Sci. Soc. 42:46 (Abstr.).Google Scholar
23. Thompson, M. A., Witt, W. W., Martin, J. R., and Slack, C. H. 1989. The efficacy of DPX-V9360 and CGA-136872 on johnsongrass, Sorghum halepense, control in corn. Abstr. Weed Sci. Soc. Am., p. 4.Google Scholar
24. Vidrine, P. R., Reynolds, D. B., and Griffin, J. L. 1989. Comparison of postemergence grass herbicides in corn. Proc. South. Weed Sci. Soc. 42:50. (Abstr.).Google Scholar
25. Vidrine, P. R., Reynolds, D. B., and Griffin, J. L. 1990. Weed control and corn tolerance with postemergence herbicides. Abstr. Weed Sci. Soc. Am., p. 88.Google Scholar
26. Williams, C. S., and Gillham, L. B. 1989. DPX-V9360: Postemergence weed control in corn. Proc. South. Weed Sci. Soc. 42:48. (Abstr.).Google Scholar
27. Worsham, A. D., and Saunders, E. 1989. Johnsongrass control postemergence in corn with DPX-V9360 (Accent), CGA-136872 (Beacon) and SD-63596. Proc. South. Weed Sci. Soc. 42:51. (Abstr.).Google Scholar