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Strategies for Control of Horseweed (Conyza canadensis) and Other Winter Annual Weeds in No-Till Corn

Published online by Cambridge University Press:  20 January 2017

Gregory R. Armel
Affiliation:
Eastern Shore Agriculture Research and Extension Center, Virginia Polytechnic Institute and State University, Painter, VA 23420
Robert J. Richardson
Affiliation:
Eastern Shore Agriculture Research and Extension Center, Virginia Polytechnic Institute and State University, Painter, VA 23420
Henry P. Wilson*
Affiliation:
Eastern Shore Agriculture Research and Extension Center, Virginia Polytechnic Institute and State University, Painter, VA 23420
Thomas E. Hines
Affiliation:
Eastern Shore Agriculture Research and Extension Center, Virginia Polytechnic Institute and State University, Painter, VA 23420
*
Corresponding author's E-mail: [email protected].

Abstract

Field studies were conducted to determine if mesotrione alone or in combinations with other corn herbicides would control horseweed and other winter annual weeds associated with no-till corn. Mesotrione alone controlled horseweed 52 to 80% by 3 wk after treatment (WAT); however, by 7 WAT control diminished to between 37 to 68%, depending on mesotrione rate. Mesotrione at 0.16 kg ai/ha plus atrazine at 0.28 kg ai/ha controlled 99% of horseweed and annual bluegrass and 88% of yellow woodsorrel. Combinations of mesotrione at 0.16 kg/ha plus acetochlor at 1.79 kg ai/ha plus 1.12 kg ai/ha glyphosate (trimethylsulfonium salt of glyphosate) or 0.7 kg ai/ha paraquat provided 93% or greater control of all three weed species. Glyphosate alone also controlled all weed species 97 to 99%, while paraquat alone provided 99% control of annual bluegrass, 72% control of horseweed, and 36% control of yellow woodsorrel. Mixtures of paraquat plus acetochlor improved control of horseweed (93%) and yellow woodsorrel (73%) over control with either herbicide applied alone.

Type
Weed Management—Major Crops
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anonymous, , 2008. AAtrex herbicide product label. Greensboro, NC: Syngenta Crop Protection. Publication No. SCP 497A-L38QQ 0106. http://www.cdms.net/LDat/ld280005.pdf. Accessed: March 31, 2008.Google Scholar
Armel, G. R., Hall, G. J., Wilson, H. P., and Cullen, N. 2005. Mesotrione plus atrazine mixtures for control of Canada thistle (Cirsium arvense). Weed Sci 53:202211.CrossRefGoogle Scholar
Armel, G. R., Wilson, H. P., Richardson, R. J., and Hines, T. E. 2003a. Mesotrione combinations in no-till corn (Zea mays). Weed Technol 17:111116.Google Scholar
Armel, G. R., Wilson, H. P., Richardson, R. J., and Hines, T. E. 2003b. Mesotrione combinations for postemergence control of horsenettle (Solanum carolinense) in corn (Zea mays). Weed Technol 17:6572.Google Scholar
Bruce, J. A. and Kells, J. J. 1990. Horseweed (Conyza canadensis) control in no-tillage soybeans (Gycine max) with preplant and preemergence herbicides. Weed Technol 4:642647.CrossRefGoogle Scholar
Derr, J. F. 1994. Weed control in container-grown herbaceous perennials. Hort. Sci 29:9597.Google Scholar
Donohue, S. J. and Heckendorn, S. E. 1994. Soil Test Recommendations for Virginia. Virginia Cooperative Extension Service Publication 834. Blacksburg: Virginia Polytech. Institute and State University. 155.Google Scholar
Eubank, T. W., Poston, D. H., Nandula, V. K., Koger, C. H., Shaw, D. R., and Reynolds, D. B. 2008. Glyphosate-resistant horseweed (Conyza canadensis) control using glyphosate-, paraquat-, and glufosinate-based herbicide programs. Weed Technol 22:1621.Google Scholar
Hasty, R. F., Sprague, C. L., and Hager, A. G. 2004. Weed control with fall and early pre-plant herbicide applications in no-till soybean. Weed Technol 18:887892.Google Scholar
Heap, I. 2008. Herbicide Resistant Weeds Weed Science Society of America. http://www.weedscience.org/In.asp. Accessed: March 31, 2008.Google Scholar
Johnson, B. C., Young, B. G., and Matthews, J. L. 2002. Effect of postemergence application rate and timing of mesotrione on corn (Zea mays) response and weed control. Weed Technol 16:414420.Google Scholar
Johnson, W. G., Dewell, R. A., Davis, V. M., and Creech, J. E. 2004. Glyphosate resistant horseweed control with postemergence herbicides in corn and soybean. Proc. North Central Weed Sci. Soc 59:18.Google Scholar
Kruger, G. R., Davis, V. M., Weller, S. C., and Johnson, W. G. 2007. Investigating Indiana horseweed (Conyza Canadensis) populations for response to 2,4-D. Proc. North Central Weed Sci. Soc 62:101.Google Scholar
Loux, M., Stachler, J., Johnson, B., Nice, G., Davis, V., and Nordby, D. 2006. Biology and Management of Horseweed Purdue Extension Publication GWC-9. 111.Google Scholar
Main, C. L., Steckel, L. E., Hayes, R. M., and Mueller, T. C. 2006. Biotic and abiotic factors influence horseweed emergence. Weed Sci 54:11011105.Google Scholar
Norris, S. R., Shen, X., and DellaPenna, D. 1998. Complementation of the arabidopsis pds1 mutant with the gene encoding p-hydroxyphenylpyruvate dioxygenase. Plant Physiol 117:13171323.Google Scholar
Shields, E. J., Dauer, J. T., VanGessel, M. J., and Neumann, G. 2006. Horseweed (Conyza canadensis) seed collected in the planetary boundary layer. Weed Sci 54:10631067.CrossRefGoogle Scholar
Sprague, C. L., Penner, D., and Kells, J. J. 1999. Weed control and Zea mays tolerance as affected by timing of RP-201772. Weed Sci 47:375382.Google Scholar
Steckel, L. E., Craig, C. C., and Hayes, R. M. 2006. Glyphosate-resistant horseweed (Conyza canadensis) control with glufosinate prior to planting in no-till cotton (Gossypium hirsutum). Weed Technol 20:10471051.Google Scholar
Sutton, P., Richards, C., Buren, L., and Glasgow, L. 2002. Activity of mesotrione on resistant weeds in maize. Pest Manage. Sci 58:981984.CrossRefGoogle ScholarPubMed
Uva, R. H., Neal, J. C., and DiTomaso, J. M. 1997. Weeds of the Northeast. Ithaca, NY: Cornell University Press. 397.Google Scholar
VanGessel, M. J. 2001. Glyphosate-resistant horseweed from Delaware. Weed Sci 49:703705.Google Scholar
Wilson, H. P., Hines, T. E., Bellinder, R. R., and Grande, J. A. 1985. Comparison of HOE-39866, SC-0224, paraquat, and glyphosate in no-till corn (Zea mays). Weed Sci 33:531536.CrossRefGoogle Scholar
Wilson, J. S. and Worsham, A. D. 1988. Combinations of nonselective herbicides for difficult to control weeds in no-till corn, Zea mays, and soybeans, Glycine max . Weed Sci 36:648652.Google Scholar