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Diclofop-Resistant Italian Ryegrass (Lolium multiflorum) Control in Imidazolinone-Tolerant Wheat

Published online by Cambridge University Press:  20 January 2017

Jason A. Bond*
Affiliation:
Department of Crop, Soil and Environmental Sciences, University of Arkansas, 115 Plant Science, Fayetteville, AR 72704
Daniel O. Stephenson IV
Affiliation:
Department of Crop, Soil and Environmental Sciences, University of Arkansas, 115 Plant Science, Fayetteville, AR 72704
Jeffrey W. Barnes
Affiliation:
Department of Crop, Soil and Environmental Sciences, University of Arkansas, 115 Plant Science, Fayetteville, AR 72704
Mohammad T. Bararpour
Affiliation:
Department of Crop, Soil and Environmental Sciences, University of Arkansas, 115 Plant Science, Fayetteville, AR 72704
Lawrence R. Oliver
Affiliation:
Department of Crop, Soil and Environmental Sciences, University of Arkansas, 115 Plant Science, Fayetteville, AR 72704
*
Corresponding author's E-mail: [email protected]

Abstract

Field research was conducted in Arkansas for 3 yr to evaluate imazamox for control of diclofop-resistant Italian ryegrass in imidazolinone-tolerant wheat. Italian ryegrass was controlled at least 89% 49 d after wheat emergence (DAE) in year 2 and 3 by imazamox at 36 g ai/ha applied to one- to two-leaf wheat (POST1), by imazamox at 54 g ai/ha applied sequentially at POST1 followed by (fb) application to three- to four-leaf wheat (POST2), by pendimethalin at 1120 g ai/ha preemergence (PRE) fb imazamox at 36 or 54 g/ha POST1, and by chlorsulfuron plus metsulfuron at 22 plus 4 g ai/ha PRE. Italian ryegrass was controlled at least 95% 150 DAE with all applications in year 1 because of extremely cold temperatures and snowfall in December and January. Only sequential imazamox applications or pendimethalin PRE fb imazamox POST1 equaled the commercial standard, chlorsulfuron plus metsulfuron, for control of Italian ryegrass 150 DAE in years 2 and 3. These treatments controlled Italian ryegrass greater than 80% 150 DAE. Sequential postemergence applications of imazamox or programs containing pendimethalin PRE fb imazamox POST1 are necessary to optimize Italian ryegrass control and wheat yield in an imidazolinone-tolerant wheat production system.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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Footnotes

1 Published with the approval of the Director of the Agricultural Experiment Station, Louisiana State University Ag Center.
Current address: Louisiana State University AgCenter, 1373 Caffey Road, Rayne, LA 70578.

References

Literature Cited

Appleby, A. P. and Brewster, B. D. 1992. Seeding arrangement on winter wheat (Triticum aestivum) grain yield and interaction with Italian ryegrass (Lolium multiflorum). Weed Technol. 6:820823.Google Scholar
Anonymous. 2003a. Beyond herbicide label. Web page: http://www.greenbook.net. Accessed: August 31, 2004.Google Scholar
Anonymous. 2003b. Finesse Herbicide Supplemental Labeling. Rotational interval to STS soybean, grain sorghum, cotton, non-STS soybeans, field corn, and rice. Web page: http://www.greenbook.net. Accessed: April 13, 2004.Google Scholar
Bailey, W. A. and Wilson, H. P. 2003. Control of Italian ryegrass (Lolium multiflorum) in wheat (Triticum aestivum) with postemergence herbicides. Weed Technol. 534542.Google Scholar
Bailey, W. A., Wilson, H. P., and Hines, T. E. 2003. Influence of AE F130060 03 application timing on Italian ryegrass (Lolium multiflorum) control. Weed Technol. 17:842853.Google Scholar
Ball, D. A., Young, F. L., and Ogg, A. G. Jr. 1999. Selective control of jointed goatgrass (Aegilops cylindrica) with imazamox in herbicide-resistant wheat. Weed Technol. 13:7782.Google Scholar
Bararpour, M. T., Oliver, L. R., and Burgos, N. R. 2003. Morphological characteristics of the Arkansas diclofop-resistant ryegrass population. Proc. South. Weed Sci. Soc. 56:187.Google Scholar
Bararpour, M. T., Oliver, L. R., and Burgos, N. R. 2004. Growth characteristics of Italian, rigid, poison, and perennial ryegrass. Proc. South. Weed Sci. Soc. 57:215.Google Scholar
Barber, L. T., Oliver, L. R., Baldwin, F. L., and Scott, R. C. 2001. Diclofop-resistant ryegrass control with imazamox in Clearfield wheat. Proc. South. Weed Sci. Soc. 54:10.Google Scholar
Blackshaw, R. E. and Harker, K. N. 1996. Growth stage and broadleaf herbicide effects on CGA 184927 efficacy. Weed Technol. 10:732737.Google Scholar
Clemmer, K. C. and York, A. C. 2002. Italian ryegrass control in Clearfield wheat. Proc. South. Weed Sci. Soc. 55:2324.Google Scholar
Collier, B. W., Medlin, C. R., and Peeper, T. F. 2003. On-farm performance of Clearfield wheat. Proc. South. Weed Sci. Soc. 56:56.Google Scholar
Crooks, H. L., York, A. C., and Jordan, D. L. 2003. Wheat (Triticum aestivum) tolerance and Italian ryegrass (Lolium multiflorum) control by AE F130060 plus AE F115008 mixed with other herbicides. Weed Technol. 17:881889.Google Scholar
Greaves, J. A., Rufener, G. K., Chang, M. T., and Koehler, P. H. 1993. Development of resistance to Pursuit herbicide in corn—the IT gene. Rep. Ann. Proc. Annu. Corn and Sorghum Res. Conf. 48:104118.Google Scholar
Grey, T. L. and Bridges, D. C. 2003. Alternatives to diclofop for the control of Italian ryegrass (Lolium multiflorum) in winter wheat (Triticum aestivum). Weed Technol. 17:219223.Google Scholar
Harker, K. N. and O'Sullivan, P. A. 1991. Effect of imazamethabenz on different growth stages of green foxtail, tartary buckwheat, and wild oat. Can. J. Plant Sci. 71:821829.Google Scholar
Hashem, A., Radosevich, S. R., and Roush, M. L. 1998. Effect of proximity factor on competition between winter wheat (Triticum aestivum) and Italian ryegrass (Lolium multiflorum). Weed Sci. 46:181190.Google Scholar
Johnson, D. H., Jordan, D. L., Johnson, W. G., Talbert, R. E., and Frans, R. E. 1993. Nicosulfuron, primisulfuron, imazethapyr, and DPX-PE350 injury to succeeding crops. Weed Technol. 7:641644.Google Scholar
Kuk, Y. I., Burgos, N. R., and Talbert, R. E. 2000. Cross- and multiple resistance of diclofop-resistant Lolium spp. Weed Sci. 48:412419.Google Scholar
Ladner, D. W. 1990. Structure-activity relationships among the imidazolinone herbicides. Pestic. Sci. 29:317333.Google Scholar
Monks, C. D., Wilcut, J. W., Richburg, J. S., Hatton, J. H., and Patterson, M. G. 1996. Effect of AC 263,222, imazethapyr, and nicosulfuron on weed control and imidazolinone-tolerant corn (Zea mays) yield. Weed Technol. 10:822827.Google Scholar
Morrison, I. N. and Maurice, D. C. 1984. The relative response of two foxtail (Setaria) species to diclofop. Weed Sci. 32:686690.CrossRefGoogle Scholar
[NASS] National Agricultural Statistics Service. 2003. Agricultural Statistics Database—Crops County and District Data. Web page: http://www.nass.usda.gov:81/ipedb/. Accessed: March 18, 2004.Google Scholar
Nelson, K. A. and Renner, K. A. 1998. Weed control in wide- and narrow-row soybean (Glycine max) with imazamox, imazethapyr, and CGA-277476 plus quizalofop. Weed Technol. 12:137144.Google Scholar
Newhouse, K. E., Singh, B. K., Shaner, D. L., and Stidham, M. A. 1991a. Mutations in corn (Zea mays L.) conferring resistance to imidazolinone herbicides. Theor. Appl. Genet. 83:6570.Google Scholar
Newhouse, K. E., Smith, W. A., Starrett, M. A., Schaeffer, T. J., and Singh, B. K. 1992. Tolerance to imidazolinone herbicides in wheat. Plant Physiol. 100:882886.Google Scholar
Newhouse, K. E., Wang, T., and Anderson, P. C. 1991b. Imidazolinone-resistant crops. in Shaner, D. L. and O'Conner, S. L., eds. The Imidazolinone Herbicides. Boca Raton, FL: CRC. Pp. 139150.Google ScholarPubMed
[NRCS]. Natural Resources Conservation Service. 2004. The PLANTS Database, Version 3.5. Baton Rouge, LA: National Plant Data Center. Web page: http://plants.usda.gov. Accessed: April 13, 2004.Google Scholar
Smith, E. B. 1994. Keys to the Flora of Arkansas. Fayetteville, AR: The University of Arkansas Press. Pp. 287, 304.Google Scholar
Stanger, C. E. and Appleby, A. P. 1989. Italian ryegrass (Lolium multiflorum) accessions tolerant to diclofop. Weed Sci. 37:350352.Google Scholar
Stidham, M. A. 1991. Herbicides that inhibit acetohydroxyacid synthase. Weed Sci. 39:428434.Google Scholar
Tucker, K. P., Miller, T. D., Baughman, P. A., and Senseman, S. A. 2002. Ryegrass (Lolium multiflorum Lam.) management in central Texas wheat. Proc. South. Weed Sci. Soc. 55:2425.Google Scholar