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Economics of Johnsongrass (Sorghum halepense) Control in Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

William G. Johnson ,
Robert E. Frans  and
Lucas D. Parsch
William G. Johnson
Affiliation:
Dep. Agron. and Rur. Soc. Univ. Arkansas, Fayetteville, AR 72701
Robert E. Frans
Affiliation:
Dep. Agron. and Rur. Soc. Univ. Arkansas, Fayetteville, AR 72701
Lucas D. Parsch
Affiliation:
Dep. Agric. Econ. and Rur. Soc. Univ. Arkansas, Fayetteville, AR 72701
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Abstract

Field trials were conducted from 1986 to 1988 at Clarkedale, AR, to evaluate selective POST grass herbicides for johnsongrass control in soybeans. Herbicide treatments were trifluralin PPI followed by single and sequential POST applications of fenoxaprop, fluazifop, quizalofop, or sethoxydim. In 1986, sequential applications of sethoxydim and fenoxaprop controlled more johnsongrass 4 WAT than single treatments. In 1987 and 1988, all herbicides except fenoxaprop controlled more than 79% of johnsongrass. The number of johnsongrass stems was reduced by cultural practices and herbicides after 2 yr. The lowest cost of control and the highest average net return over the 3-yr period was obtained with quizalofop.

Keywords

Fenoxaprop, (±)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]propanoic acidfluazifop-P, (R)-2-[4-[5-(trifluoromethyl)-2-pyridinyl-oxy]phenoxy]propanoic acidquizalofop, (±)-2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoic acidsethoxydim, 2-[1-(ethoxyimino)butyl-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onetrifluralin, 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzenamine, johnsongrass, Sorghum halepense (L.) Pers. ♯ SORHAsoybeans, Glycine max (L.) Merr. ‘Centennial’Economic analysisfenoxapropfluazifop-PquizalofopsethoxydimSORHA
Type
Research
Information
Weed Technology , Volume 5 , Issue 4 , December 1991 , pp. 765 - 770
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Black, C. C., Chen, T. M., and Brown, R. H. 1969. Biochemical basis for plant competition. Weed Sci. 17:338–344.Google Scholar
2. Brewster, B. D., and Spinney, R. C. 1989. Control of seedling grasses with postemergence herbicides. Weed Technol. 3:39–43.Google Scholar
3. Buhler, D. D., and Burnside, O. C. 1984. Effect of application factors on postemergence phytotoxicity of fluazifop-butyl, haloxyfop-methyl and sethoxydim. Weed Sci. 32:574–583.Google Scholar
4. Clark, J. D., Herrington, B. E., Stuart, C. A., Windham, T. E., and Coats, R. E. 1988. Arkansas soybean budgets. Ext. Tech. Bull. 47. Univ. Ark. Coop. Ext. Serv., Fayetteville, AR.Google Scholar
5. 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
6. Dale, J. E., and Chandler, J. M. 1979. Herbicide-crop rotation for johnsongrass (Sorghum halepense) control. Weed Sci. 27:479–485.Google Scholar
7. Day, B. E. 1978. The status and future of chemical weed control. p. 203–214 in Smith, E. H. and Pimentel, D., eds. Pest Control Strategies. Academic Press, New York.Google Scholar
8. Elmore, C. D. 1986. Weed survey – Southern states. Res. Rep. South. Weed Sci. Soc. 39:136–158.Google Scholar
9. Fehr, W. R., Caviness, C. E., Burwood, D. T., and Pennington, J. S. 1971. Stages of soybean development for soybean (Glycine max L.) Merr. Crop Sci. 11:929–931.CrossRefGoogle Scholar
10. Headly, J. C. 1977. Defining economic threshold. p. 100–108 in Pest control strategy for the future. Nat. Acad. Sci. Washington, DC.Google Scholar
11. Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. The Worlds Worst Weeds, Distribution and Biology. p. 54–55 in 1st ed. Univ. Press Hawaii, Honolulu.Google Scholar
12. Horowitz, M. 1973. Spatial growth of Sorghum halepense (L.) Pers. Weed Res. 13:200–208.Google Scholar
13. Kidder, D. W., and Behrens, R. 1988. Plant responses to haloxyfop as influenced by water stress. Weed Sci. 36:305–312.CrossRefGoogle Scholar
14. Kleifield, Y. 1970. Combined effect of trifluralin and MSMA on johnsongrass and cotton. Weed Sci. 18:16–24.Google Scholar
15. Lolas, P. C., and Coble, H. D. 1982. Noncompetitive effects of johnsongrass (Sorghum halepense) on soybeans (Glycine max). Weed Sci. 30:589–593.Google Scholar
16. McWhorter, C. G. 1974. Johnsongrass control in soybeans with trifluralin and nitralin. Weed Sci. 22:111–115.Google Scholar
17. McWhorter, C. G. 1977. Johnsongrass (Sorghum halepense) control in soybeans (Glycine max) with soil-incorporated dinitroaniline herbicides. Weed Sci. 25:264–267.Google Scholar
18. McWhorter, C. G., and Hartwig, E. E. 1965. Effectiveness of preplanting tillage in relation to herbicides in controlling johnsongrass for soybean production. Agron. J. 57:385–389.Google Scholar
19. McWhorter, C. G., and Hartwig, E. E. 1972. Competition of johnsongrass and cocklebur with six soybean varieties. Weed Sci. 20:56–59.Google Scholar
20. McWhorter, C. G., and Anderson, J. M. 1981. The technical and economic effects of johnsongrass (Sorghum halepense) control in soybeans (Glycine max). Weed Sci. 29:245–252.Google Scholar
21. McWhorter, C. G., and Barrentine, W. L. 1979. Spot spraying for johnsongrass (Sorghum halepense) control in soybeans (Glycine max). Weed Sci. 27:119–121.CrossRefGoogle Scholar
22. Pearson, E. S., and Hartley, H. O. 1966. Biometrika Tables for Statisticians, 3rd ed. Cambridge, New York.Google Scholar
23. Standifer, L. C. Jr., and Thomas, C. H. 1965. Response of johnsongrass to soil-incorporated trifluralin. Weeds 13:302–306.Google Scholar
24. Whitwell, T., Wehtje, G., Walker, R. H., and McGuire, J. A. 1985. Johnsongrass (Sorghum halepense) control in soybeans (Glycine max) with postemergence herbicides applied alone and in mixtures. Weed Sci. 33:673–678.Google Scholar
25. Williams, C. S., and Hayes, R. M. 1984. Johnsongrass (Sorghum halepense) competition in soybeans (Glycine max). Weed Sci. 32:498–501.Google Scholar
26. Winton-Daniels, K., Frans, R., and McClelland, M. 1990. Herbicide systems for johnsongrass (Sorghum halepense) control in soybeans (Glycine max). Weed Technol. 4:115–122.Google Scholar