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Herbicide Programs for the Control of ALS-Resistant Shattercane (Sorghum bicolor) in Corn (Zea mays)

Published online by Cambridge University Press:  20 January 2017

Steven R. King  and
Edward S. Hagood JR.
Steven R. King*
Affiliation:
Department of Research Centers, Southern Agricultural Research Center, Montana State University, Huntley, MT 59037
Edward S. Hagood JR.
Affiliation:
Department of Plant Pathology, Physiology, and Weed Science, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
*
Corresponding author's E-mail: sking@montana.edu
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Abstract

Growers from three counties in Virginia have recently experienced difficulty controlling shattercane in corn with acetolactate synthase (ALS)–inhibiting herbicides. Seed was collected from these locations and from a susceptible biotype and tested for resistance to imazethapyr, imazapyr, and nicosulfuron in greenhouse trials. Seedlings from these locations were also treated with glufosinate and glyphosate. Greenhouse experiments indicated that one of the four shattercane biotypes was resistant to ALS-inhibiting herbicides. Effective control of the resistant biotype was possible with glufosinate or glyphosate. Field experiments were conducted in 2003 and 2004 to determine the most effective herbicide program utilizing herbicide-tolerant/-resistant corn hybrids for the control of shattercane. Early postemergence (EP) and late postemergence (LP) applications of imazethapyr plus imazapyr or EP nicosulfuron did not control shattercane, and yield from the imidazolinone-tolerant (IT) hybrid was equivalent between these treatments and was equivalent to yield from the weedy control (WC). At 23 wk after planting (WAP), EP applications of glyphosate controlled shattercane 71 and 75% compared to only 21 and 66% with EP applications of glufosinate in 2003 and 2004, respectively. In both years, LP applications of glufosinate or glyphosate controlled shattercane better than did EP applications of glufosinate or glyphosate. Treatment timing with respect to corn yield within either the glufosinate-resistant (LL) or glyphosate-resistant (RR) corn hybrid was critical. EP treatments of glufosinate or glyphosate resulted in yields that were equivalent to yield from the weed-free control (WFC) of each hybrid. LP treatments of glufosinate or glyphosate, however, resulted in yields that were equivalent to only 90 and 91% of yield from the WFC of each hybrid, respectively.

Keywords

Glyphosateglufosinateimazapyrimazethapyrnicosulfuronshattercane, Sorghum bicolor (L.) Moench. # SORVUcorn, Zea mays (L.) # ZEAMXHerbicide-resistance managementALS, acetolactate synthase (EC 4.1.3.18)AMS, ammonium sulfateEP, early postemergenceIT, imidazolinone-tolerantLL, glufosinate-resistantLP, late postemergencePOST, postemergencePRE, preemergenceRR, glyphosate-resistantWAP, weeks after plantingWC, weedy controlWFC, weed-free control
Type
Research Article
Information
Weed Technology , Volume 20 , Issue 2 , June 2006 , pp. 416 - 421
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anderson, D. D., Nissen, S. J., Martin, A. R., and Roeth, F. W. 1998. Discovery of a primisulfuron-resistant shattercane (Sorghum bicolor) biotype. Weed Technol. 12:74–77.CrossRefGoogle Scholar
Beckett, T. H., Stoller, E. W., and Wax, L. M. 1988. Interference of four annual weeds in corn (Zea mays). Weed Sci. 36:764–769.Google Scholar
Brann, D. E., Holshouser, D. L., and Mullins, G. L. 2000. Agronomy Handbook. Blacksburg, VA: Virginia Polytechnic Institute and State University Cooperative Extension. Virginia Tech Extension Publication 424-100. Pp. 3–29.Google Scholar
Clewis, S. B., Thomas, W. E., Wilcut, J. W., and Allen, J. 2004. Weed control, crop tolerance, and grain yield in Liberty-Link corn. Proc. South. Weed Sci. Soc. 57:52.Google Scholar
Culpepper, A. S., York, A. C., Batts, R. B., and Jennings, K. M. 2000. Weed management in glufosinate-resistant soybean (Glycine max). Weed Technol. 14:77–88.Google Scholar
Dobbs, R. R., Buehring, N. W., Shankle, M. W., Garrett, T. F., and Harrison, M. P. 2004. Comparison of herbicide systems in Roundup Ready and conventional corn. Proc. South. Weed Sci. Soc. 57:250.Google Scholar
Gower, S. A., Loux, M. M., and Cardina, J. et al. 2003. Effect of postemergence glyphosate application timing on weed control and grain yield in glyphosate-resistant corn: results of a 2-yr multistate study. Weed Technol. 17:821–828.Google Scholar
Hans, S. R. and Johnson, W. G. 2002. Influence of shattercane [Sorghum bicolor (L.) Moench.] interference on corn (Zea mays L.) yield and nitrogen accumulation. Weed Technol. 16:787–791.Google Scholar
Hayden, T. A. and Burnside, O. C. 1987. Effect of herbicide incorporation methods on shattercane (Sorghum bicolor) control in corn (Zea mays). Weed Sci. 33:364–372.Google Scholar
Heap, I. 2005. International Survey of Herbicide Resistant Weeds. Web page:http://www.weedscience.org. Accessed: January 27, 2005.Google Scholar
Hinz, J. R. R. and Owen, M. D. K. 1996. Nicosulfuron and primisulfuron selectivity in corn (Zea mays) and two annual grasses. Weed Sci. 44:219–223.Google Scholar
Hoss, N. E., Al-Khatib, K., Peterson, D. E., and Loughin, T. M. 2003. Efficacy of glyphosate, glufosinate, and imazethapyr on selected weed species. Weed Sci. 51:110–117.Google Scholar
Parker, R. G., York, A. C., and Jordan, D. L. 2004. Weed management systems in Roundup Ready and conventional corn (Zea mays L.) hybrids. Proc. South. Weed Sci. Soc. 57:49.Google Scholar
Simmons, J. R. and Willian, W. T. 2004. Economics of weed management in Clearfield and Roundup Ready corn systems. Proc. South. Weed Sci. Soc. 57:51.Google Scholar
Uva, R. H., Neal, J. C., and DiTomaso, J. M. 1997. Weeds of the Northeast. Ithaca, NY: Cornell University Press. 84 p.Google Scholar
Vencill, W. K. ed. 2002. Herbicide Handbook. 8th ed. Lawrence, KS: Weed Science Society of America. Pp. 317–319.Google Scholar
Vesecky, J. F., Feltner, K. C., and Vanderlip, R. L. 1973. Wild cane and forage sorghum competition in grain sorghum. Weed Sci. 21:28–32.Google Scholar
Weisbrook, M. L., Johnson, W. G., Hart, S. E., Bradley, P. R., and Wax, L. M. 2001. Comparison of weed management systems in narrow-row, glyphosate- and glufosinate-resistant soybean (Glycine max). Weed Technol. 15:122–128.CrossRefGoogle Scholar
Zelaya, I. A. and Owen, M. D. K. 2004. Evolved resistance to acetolactate synthase-inhibiting herbicides in common sunflower (Helianthus annuus), giant ragweed (Ambrosia trifida), and shattercane (Sorghum bicolor) in Iowa. Weed Sci. 52:538–548.Google Scholar