Skip to main content Accessibility help
×
×
Home

Timing Aminopyralid to Prevent Seed Production Controls Medusahead (Taeniatherum caput-medusae) and Increases Forage Grasses

  • Matthew J. Rinella (a1), Josh S. Davy (a2), Guy B. Kyser (a3), Fadzayi E. Mashiri (a4), Susan E. Bellows (a5), Jeremy J. James (a6) and Vanelle F. Peterson (a7)...
Abstract

Exotic annual grasses such as medusahead [Taeniatherum caput-medusae (L.) Nevski] and downy brome (Bromus tectorum L.) dominate millions of hectares of grasslands in the western United States. Applying picloram, aminopyralid, and other growth regulator herbicides at late growth stages reduces seed production of most exotic annual grasses. In this study, we applied aminopyralid to T. caput-medusae to determine how reducing seed production in the current growing season influenced cover in the subsequent growing season. At eight annual grassland sites, we applied aminopyralid at 55, 123, and 245 g ae ha−1 in spring just before T. caput-medusae heading. The two higher rates were also applied pre-emergence (PRE) in fall to allow comparisons with this previously tested timing. When applied in spring during the roughly 10-d period between the flag leaf and inflorescence first becoming visible, just 55 g ae ha−1 of aminopyralid greatly limited seed production and subsequently reduced T. caput-medusae cover to nearly zero. Fall aminopyralid applications were less effective against T. caput-medusae, even at a rate of 245 g ae ha−1. The growing season of application, fall treatments, but not spring treatments, sometimes reduced cover of desirable winter annual forage grasses. The growing season after application, both spring and fall treatments tended to increase forage grasses, though spring treatments generally caused larger increases. Compared with other herbicide treatment options, preheading aminopyralid treatments are a relatively inexpensive, effective approach for controlling T. caput-medusae and increasing forage production.

  • View HTML
    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Timing Aminopyralid to Prevent Seed Production Controls Medusahead (Taeniatherum caput-medusae) and Increases Forage Grasses
      Available formats
      ×
      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Timing Aminopyralid to Prevent Seed Production Controls Medusahead (Taeniatherum caput-medusae) and Increases Forage Grasses
      Available formats
      ×
      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Timing Aminopyralid to Prevent Seed Production Controls Medusahead (Taeniatherum caput-medusae) and Increases Forage Grasses
      Available formats
      ×
Copyright
Corresponding author
Author for correspondence: Matthew J. Rinella, United States Department of Agriculture–Agricultural Research Service, Fort Keogh Livestock and Range Research Laboratory, Miles City, MT 59301. (Email: matt.rinella@ars.usda.gov)
References
Hide All
Burnside, OC, Wilson, RG, Weisberg, S, Hubbard, KG (1996) Seed longevity of 41 weed species buried 17 years in eastern and western Nebraska. Weed Sci 44:7486
Calo, A, Brause, S, Jones, S (2012) Integrated treatment with a prescribed burn and post-emergent herbicide demonstrates initial success in managing cheatgrass in a northern Colorado natural area. Nat Area J 32:300304
Chib, S (1992) Bayes inference in the Tobit censored regression model. J Econometrics 51:7999
Davies, KW, Sheley, RL (2011) Promoting native vegetation and diversity in exotic annual grass infestations. Restor Ecol 19:159165
Davies, KW, Svejcar, TJ (2008) Comparison of medusahead-invaded and noninvaded Wyoming big sagebrush steppe in southeastern Oregon. Rangeland Ecol Manag 61:623629
DiTomaso, JM (2000) Invasive weeds in rangelands: species, impacts, and management. Weed Sci 48:255265
DiTomaso, JM, Kyser, GB (2015) Effects of aminopyralid on California annual grassland plant communities. Invasive Plant Sci Manag 8:98109
DiTomaso, JM, Kyser, GB, Miller, JR, Garcia, S, Smith, RF, Nader, G, Connor, MJ, Orloff, SB (2006) Integrating prescribed burning and clopyralid for the management of yellow starthistle (Centaurea solstitialis). Weed Sci 54:757767
Enloe, SF, Lym, RG, Wilson, R, Westra, P, Nissen, S, Beck, G, Moechnig, M, Peterson, V, Masters, RA, Halstvedt, M (2007) Canada thistle (Cirsium arvense) control with aminopyralid in range, pasture, and noncrop areas. Weed Technol 21:890894
Gramig, GG, Ganguli, AC (2015) Managing Canada thistle (Cirsium arvense) in a constructed grassland with aminopyralid and prescribed fire. Invasive Plant Sci Manag 8:243249
Hulbert, LC (1955) Ecological studies of Bromus tectorum and other annual bromegrasses. Ecol Monogr 25:181213
Jeffries, MD, Gannon, TW, Brosnan, JT, Breeden, GK (2016) Mitigation practices to effectively overseed into indaziflam-treated turfgrass areas. Weed Technol 30:154162
Kessler, KC, Nissen, SJ, Meiman, PJ, Beck, KG (2015) Litter reduction by prescribed burning can extend downy brome control. Rangeland Ecol Manag 68:367374
Kyser, GB, Creech, JE, Zhang, JM, DiTomaso, JM (2012a) Selective control of medusahead (Taeniatherum caput-medusae) in California sagebrush scrub using low rates of glyphosate. Invasive Plant Sci Manag 5:18
Kyser, GB, DiTomaso, JM, Doran, MP, Orloff, SB, Wilson, RG, Lancaster, DL, Lile, DF, Porath, ML (2007) Control of medusahead (Taeniatherum caput-medusae) and other annual grasses with imazapic. Weed Technol 21:6675
Kyser, GB, Hazebrook, A, DiTomaso, JM (2013a) Integration of prescribed burning, aminopyralid, and reseeding for restoration of yellow starthistle (Centaurea solstitialis)-infested rangeland. Invasive Plant Sci Manag 6:480491
Kyser, GB, Peterson, VF, Davy, JS, DiTomaso, JM (2012b) Preemergent control of medusahead on California annual rangelands with aminopyralid. Rangeland Ecol Manag 65:418425
Kyser, GB, Peterson, V, Orloff, SB, Wright, SD, DiTomaso, JM (2011) Control of yellow starthistle (Centaurea solstitialis) and coast fiddleneck (Amsinckia menziesii) with aminopyralid. Invasive Plant Sci Manag 4:341348
Kyser, GB, Wilson, RG, Zhang, JM, DiTomaso, JM (2013b) Herbicide-assisted restoration of Great Basin sagebrush steppe infested with medusahead and downy brome. Rangeland Ecol Manag 66:588596
Lym, RG, Kirby, DR (1991) Effect of glyphosate on introduced and native grasses. Weed Technol 5:421425
Lym, RG, Messersmith, CG (1985) Leafy spurge control and improved forage production with herbicides. J Range Manage 38:386391
Lym, RG, Messersmith, CG (1990) Cost-effective long-term leafy spurge (Euphorbia esula) control with herbicides. Weed Technol 4:635641
Mangold, J, Orloff, N, Parkinson, H, Halstvedt, M (2015) Integrating herbicides and reseeding to restore rangeland infested by an invasive forb-annual grass complex. Ecol Restor 33:1619
McKell, CM, Wilson, AM, Kay, BL (1962) Effective burning of rangelands infested with medusahead. Weeds 10:125131
Miller, RF, Miller, B, Peterson, V, Oneto, S, Kyser, G, DiTomaso, J (2014) Medusahead Control with Milestone® Herbicide. Dow AgroSciences. https://static1.squarespace.com/static/50d37c2ce4b09ff030bc2f7b/t/53c6a9c8e4b01cfdb3ebc094/1405528520021/medusahead+white+paper.pdf. Accessed July 16, 2017
Monaco, TA, Osmond, TM, Dewey, SA (2005) Medusahead control with fall- and spring-applied herbicides on northern Utah foothills. Weed Technol 19:653658
Morris, C, Monaco, TA, Rigby, CW (2009) Variable impacts of imazapic rate on downy brome (Bromus tectorum) and seeded species in two rangeland communities. Invasive Plant Sci Manag 2:110119
Mueller-Warrant, GW (1999) Duration of control from preemergence herbicides for use in nonburned grass seed crops. Weed Technol 13:439449
Nafus, AM, Davies, KW (2014) Medusahead ecology and management: California annual grasslands to the intermountain west. Invasive Plant Sci Manag 7:210221
Ortega, YK, Pearson, DE (2010) Effects of picloram application on community dominants vary with initial levels of spotted knapweed (Centaurea stoebe) invasion. Invasive Plant Sci Manag 3:7080
Owen, SM, Sieg, CH, Gehring, CA (2011) Rehabilitating downy brome (Bromus tectorum)-invaded shrublands using imazapic and seeding with native shrubs. Invasive Plant Sci Manag 4:223233
Rinella, MJ, Bellows, SE, Roth, AD (2014) Aminopyralid constrains seed production of the invasive annual grasses medusahead and ventenata. Rangeland Ecol Manag 67:406411
Rinella, MJ, Haferkamp, MR, Masters, RA, Muscha, JM, Bellows, SE, Vermeire, LT (2010a) Growth regulator herbicides prevent invasive annual grass seed production. Invasive Plant Sci Manag 3:1216
Rinella, MJ, Kells, JJ, Ward, RW (2001) Response of ‘Wakefield’ winter wheat (Triticum aestivum) to dicamba. Weed Technol 15:523529
Rinella, MJ, Masters, RA, Bellows, SE (2010b) Growth regulator herbicides prevent invasive annual grass seed production under field conditions. Rangeland Ecol Manag 63:487490
Rinella, MJ, Masters, RA, Bellows, SE (2013) Effects of synthetic auxin herbicide on downy brome (Bromus tectorum) seed production. Invasive Plant Sci Manag 6:6064
Sebastian, DJ, Fleming, MB, Patterson, EL, Sebastian, JR, Nissen, SJ (2017a) Indaziflam: a new cellulose-biosynthesis-inhibiting herbicide provides long-term control of invasive winter annual grasses. Pest Manag Sci 73:21492162
Sebastian, DJ, Nissen, SJ, Rodrigues, JD (2016a) Pre-emergence control of six invasive winter annual grasses with imazapic and indaziflam. Invasive Plant Sci Manag 9:308316
Sebastian, DJ, Nissen, SJ, Sebastian, JR, Meiman, PJ, Beck, KG (2017b) Preemergence control of nine invasive weeds with aminocyclopyrachlor, aminopyralid, and indaziflam. Invasive Plant Sci Manag 10:99109
Sebastian, DJ, Sebastian, JR, Nissen, SJ, Beck, KG (2016b) A potential new herbicide for invasive annual grass control on rangeland. Rangeland Ecol Manag 69:195198
Seefeldt, S, Conn, J (2011) Control of orange hawkweed (Hieracium aurantiacum) in southern Alaska. Invasive Plant Sci Manag 4:8794
Sheley, RL, Bingham, BS, Davies, KW (2012a) Rehabilitating medusahead (Taeniatherum caput-medusae) infested rangeland using a single-entry approach. Weed Sci 60:612617
Sheley, RL, Carpinelli, MF, Morghan, KJR (2007) Effects of imazapic on target and nontarget vegetation during revegetation. Weed Technol 21:10711081
Sheley, RL, Duncan, CA, Halstvedt, MB, Jacobs, JS (2000) Spotted knapweed and grass response to herbicide treatments. J Range Manage 53:176182
Sheley, RL, Vasquez, EA, Chamberlain, AM, Smith, BS (2012b) Landscape-scale rehabilitation of medusahead (Taeniatherum caputmedusae)-dominated sagebrush steppe. Invasive Plant Sci Manag 5:436442
Shinn, SL, Thill, DC (2002) The response of yellow starthistle (Centaurea solstitialis), annual grasses, and smooth brome (Bromus inermis) to imazapic and picloram. Weed Technol 16:366370
Shinn, SL, Thill, DC (2004) Tolerance of several perennial grasses to imazapic. Weed Technol 18:6065
Smith, DC, Meyer, SE, Anderson, VJ (2008) Factors affecting Bromus tectorum seed bank carryover in western Utah. Rangeland Ecol Manag 61:430436
Sperry, LJ, Belnap, J, Evans, RD (2006) Bromus tectorum invasion alters nitrogen dynamics in an undisturbed arid grassland ecosystem. Ecology 87:603615
Ward, JS, Mervosh, TL (2012) Nonchemical and herbicide treatments for management of Japanese stiltgrass (Microstegium vimineum). Invasive Plant Sci Manag 5:919
Whitson, TD, Koch, DW (1998) Control of downy brome (Bromus tectorum) with herbicides and perennial grass competition. Weed Technol 12:391396
Young, JA, Trent, JD, Blank, RR, Palmquist, DE (1998) Nitrogen interactions with medusahead (Taeniatherum caput-medusae ssp. asperum) seedbanks. Weed Sci 46:191195
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Invasive Plant Science and Management
  • ISSN: 1939-7291
  • EISSN: 1939-747X
  • URL: /core/journals/invasive-plant-science-and-management
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed