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Evaluation of Aminopyralid Applied PRE to Control Western Ragweed (Ambrosia psilostachya) in Oklahoma Pastureland

Published online by Cambridge University Press:  20 January 2017

Eddie R. Funderburg ,
James M. Locke  and
Jon T. Biermacher
Eddie R. Funderburg*
Affiliation:
Ag Research, Agricultural Division, Samuel Roberts Noble Foundation, 2510 Sam Noble Parkway, Ardmore, OK 73401
James M. Locke
Affiliation:
Ag Research, Agricultural Division, Samuel Roberts Noble Foundation, 2510 Sam Noble Parkway, Ardmore, OK 73401
Jon T. Biermacher
Affiliation:
Ag Research, Agricultural Division, Samuel Roberts Noble Foundation, 2510 Sam Noble Parkway, Ardmore, OK 73401
*
Corresponding author's E-mail: erfunderburg@noble.org.
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Abstract

Western ragweed is problematic in Oklahoma pasture and rangeland. There are no labeled PRE herbicides for western ragweed control in pastures to allow ranchers the flexibility of extending the spray season or the ability to spray before emergence of sensitive crops in bordering fields. Field studies were conducted in four locations during a 2-yr period to determine the effects of applying aminopyralid PRE for control of western ragweed. Good to excellent control of western ragweed was obtained when aminopyralid rates of 89 g ae ha−1 or greater were applied PRE. Control was season long and equal to that obtained with a formulated mixture of 2,4-D and aminopyralid applied POST at a rate of 457 + 57 g ae ha−1. Sward height at time of PRE application had little to no effect on the efficacy of the treatment, but time after application before a significant rainfall event did influence the aminopyralid rate needed to achieve acceptable PRE control.

Ambrosia psilostachya es un problema en zonas de pastoreo en Oklahoma. No hay herbicidas PRE registrados para el control de A. psilostachya en pastos, de manera que le permita a los rancheros la flexibilidad de extender la temporada de aplicación o la habilidad de aplicar antes de la emergencia de cultivos sensibles en campos vecinos. Se realizaron estudios de campo en cuatro localidades durante un período de 2 años para determinar los efectos de la aplicación PRE de aminopyralid para el control de A. psilostachya. Se obtuvo un control de bueno a excelente de A. psilostachya cuando se aplicaron PRE dosis de 89 g ae ha−1 o mayores. El control duró toda la temporada y fue igual al obtenido con una formulación de una mezcla de 2,4-D y aminopyralid aplicada POST a una dosis de 457 + 57 g ae ha−1. La altura del pasto al momento de la aplicación PRE tuvo poco o ningún efecto en la eficacia del tratamiento, pero la duración del período después de la aplicación antes de un evento de lluvia importante influenció la dosis de aminopyralid requerida para alcanzar un control PRE aceptable.

Keywords

2,4-Daminopyralidwestern ragweed, Ambrosia psilostachya DC.Pasturerangelandsward heightweed control
Type
Research Article
Information
Weed Technology , Volume 28 , Issue 2 , June 2014 , pp. 395 - 400
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anonymous (2012) GrazonNext® herbicide product label. Dow AgroSciences, LLC Product Bulletin R392-005. Indianapolis, IN: Dow AgroSciences. 7 pGoogle Scholar
Anonymous (2013) Milestone® herbicide product label. Dow AgroSciences, LLC Publication DO2-879-005. Indianapolis, IN: Dow AgroSciences. 9 pGoogle Scholar
Baumann, PA, Smith, JW III (2000) Effectiveness of fluroxypyr and picloram for controlling marshelder (Iva annua), western ragweed (Ambrosia psilostachya), and wooly croton (Croton capitatus). Page 59 in Proceedings of the 53rd Annual Meeting of the Southern Weed Science Society. Tulsa, OK: Southern Weed Science Society Google Scholar
Bovey, RW, McCarty, MK, Davis, FS (1966) Control of perennial ragweed in western Nebraska rangeland. J Range Manag 19(4):220–222 Google Scholar
Fast, BJ, Ferrell, JA, MacDonald, GE, Sellers, BA, MacRae, AW, Krutz, JL, Kline, WN (2011) Aminopyralid soil residues affect rotational vegetable crops in Florida [published online ahead of print March 16, 2011]. Pest Manag Sci 67(7):825–830. doi.1002/ps.2119.Google Scholar
Ferrell, JA, Mullahey, JJ, Langeland, KA, Kline, WN (2006) Control of tropical soda apple (Solanum viarum) with aminopyralid. Weed Technol 20:453–457 Google Scholar
Halcomb, M (2002) Field Nursery Weed Control. Knoxville, TN: University of Tennessee Field Weed Control Guide Comm/Gen/Clover alternatives rev. 02-02. 2 pGoogle Scholar
Kelley L Michigan State University Extension (2012). http://msue.anr.msu.edu/news/irrigation_to_improve_herbicide_performance. Accessed January 5, 2014Google Scholar
Kyser, GB, Peterson, VF, Davy, JS, DiTomaso, JM (2012) PRE control of medusahead on California annual rangelands with aminopyralid. Rangeland Ecol Manag 65(4):418–425 Google Scholar
Locke, J, Funderburg, ER (2010) Western ragweed control with pasture herbicides. Page 158 in Proceedings of the 63rd Annual Meeting of the Southern Weed Science Society. Little Rock, AR: Southern Weed Science Society Google Scholar
Mikkelson, JR, Lym, RG (2011) Aminopyralid soil residues affect crop rotation in North Dakota soils. Weed Technol 25(3):422–429 Google Scholar
Pavek, DS (1992) Ambrosia psilostachya . in Fire effects information system. U. S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Services Laboratory. http://www.fs.fed.us/database/feis. Accessed: October 9, 2013Google Scholar
Rhodes, GN Jr., Breeden, GK, Bates, G, McElroy, S (2005) Hay crop and pasture weed management. Knoxville, TN: University of Tennessee Extension PB1521. 23 pGoogle Scholar
Rhodes, GN Jr., Phillips, WP Jr. (2011) Pasture herbicide stewardship. Knoxville, TN: University of Tennessee Extension Publication W265. 3 pGoogle Scholar
Selim, HM, Naquin, BJ, Bengston, RL, Zhu, H, Griffin, JL, Zhou, L (2004) Herbicide retention and runoff losses as affected by sugarcane mulch residue. Baton Rouge, LA: LSU AgCenter Bulletin Number 883. Pages 43 pGoogle Scholar
Vermeire, LT, Gilen, RL, Bidwell, TG (2013) Ecology and management of western ragweed on rangeland. Stillwater, OK: Oklahoma Cooperative Extension Service NREM-2873. 4 pGoogle Scholar
Wengland, T (2013). Wisconsin's booming grape crop at risk from herbicide drift. Cap Times. September 8, 2013.Google Scholar