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Effectiveness and Cost of Downy Brome (Bromus tectorum) Control at High Elevation

  • Amy L. Concilio (a1)
Abstract

Downy brome (Bromus tectorum) is an invasive, annual grass that has spread through much of the Great Basin desert but remains patchy at high elevation. This study evaluates control options for outlier infestations in the eastern Sierra Nevada, CA, based on their ecological effectiveness and their economic and practical feasibility. I tested the efficacy of hand-pulling, sheet-mulching, and soil solarization followed by broadcast and seedball seeding of native forbs and grasses. Downy brome cover, density, and dominance in the seed bank decreased with all removal treatments. Soil solarization and sheet mulching were most successful at eliminating downy brome (decreasing density by 99% after just 1 yr of treatment in both cases), but they had negative nontarget impacts on other herbaceous species. Germination of native seeds was low with both broadcast and seedball seeding, probably because of dry conditions. Each of the methods tested has potential for decreasing or eliminating small-scale, outlier infestations of downy brome along roadsides and in disturbed sites and thereby helping to contain the invasion.

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Corresponding author's E-mail: amyconcilio@gmail.com
References
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Arora, A. and Yaduraju, N. T. 1998. High-temperature effects on germination and viability of weed seeds in soil. J. Agron. Crop Sci. 181:3543.
Banerjee, M. J., Gerhart, V. J., and Glenn, E. P. 2006. Native plant regeneration on abandoned desert farmland: effects of irrigation, soil preparation, and amendments on seedling establishment. Restor. Ecol. 14:339348.
Banks, E. R. and Baker, W. L. 2011. Scale and pattern of cheatgrass (Bromus tectorum) invasion in Rocky Mountain National Park. Nat. Area. J. 31:377390.
Bond, W. and Grundy, A. C. 2001. Non-chemical weed management in organic farming systems. Weed Res. 41:383405.
Borman, M. M. 2000. The Great Basin: Healing the Land. Boise, ID U.S. Department of the Interior, Bureau of Land Management. 36 p.
Brooks, M. L., D'Antonio, C. M., Richardson, D. M., Grace, J. B., Keeley, J. E., DiTomaso, J. M., Hobbs, R. J., Pellant, M., and Pyke, D. 2004. Effects of invasive alien plants on fire regimes. Bioscience 54:677688.
Carpenter, A. T. and Murray, T. A. 2005. The Nature Conservancy. Element Stewardship Abstract for Bromus tectorum L. (Anisantha tectorum (L.) Nevski) cheatgrass, downy brome. Arlington, VA The Nature Conservancy.
[CDFA] California Department of Food and Agriculture. 2012. Yellow Starthistle Leading Edge Project: Program Details. http://www.cdfa.ca.gov/plant/ipc/ystmapping/ystmapping_hp.htm. Accessed: April 9, 2012.
Chambers, J. C., Roundy, B. A., Blank, R. R., Meyer, S. E., and Whittaker, A. 2007. What makes Great Basin sagebrush ecosystems invasible by Bromus tectorum? Ecol. Monogr. 77:117145.
Chen, Y. and Katan, J. 1980. Effect of solar heating of soils by transparent polyethylene mulching on their chemical properties. Soil Sci. 130:271277.
Concilio, A. L. 2012. Bromus tectorum Invasion and Global Change: Likelihood of Spread and Feasibility of Control. Ph.D Dissertation. Santa Cruz, CA University of California. 221 p.
Concilio, A. L., Loik, M. E., and Belnap, J. 2013. Global change effects on Bromus tectorum L. (Poaceae) at its high-elevation range margin. Glob. Chang. Biol. 19:161172.
D'Antonio, C. and Meyerson, L. A. 2002. Exotic plant species as problems and solutions in ecological restoration: a synthesis. Restor. Ecol. 10:703713.
D'Antonio, C. M. and Vitousek, P. M. 1992. Biological invasions by exotic grasses, the grass/fire cycle, and global change. Annu. Rev. Ecol. Syst. 23:6387.
Daubenmire, R. 1959. A canopy-coverage method of vegetational analysis. Northwest Sci. 33:4364.
DiTomaso, J. M. 2000. Invasive weeds in rangelands: species, impacts, and management. Weed Sci. 48:255265.
Elmore, C., Stapleton, J., Bell, C., and Devay, J. 1997. Soil Solarization: A Nonpesticidal Method for Controlling Diseases, Nematodes, and Weeds. Oakland, CA University of California Division of Agriculture and Natural Resources Publication 21377. 17 p.
Ethridge, D. E., Sherwood, R. D., Sosebee, R. E., and Herbel, C. H. 1997. Economic feasibility of rangeland seeding in the arid southwest. J. Range Manag. 50:185190.
Forbis, T. A. 2011. Germination phenology of some Great Basin native annual forb species. Plant Species Biol. 25:221230.
Griffith, A. B. and Loik, M. E. 2010. Effects of climate and snow depth on Bromus tectorum population dynamics at high elevation. Oecologia 164:821832.
Hardegree, S. P. 1994. Matric priming increases germination rate of Great Basin native perennial grasses. Agron. J. 86:289293.
Hutchinson, R. A. and Viers, J. H. 2011. Tarping as an alternative for perennial pepperweed (Lepidium latifolium) control. Invasive Plant Sci. Manag. 4:6672.
Kettenring, K. M. and Adams, C. R. 2011. Lessons learned from invasive plant control experiments: a systematic review and meta-analysis. J. Appl. Ecol. 48:970979.
Knapp, P. A. 1996. Cheatgrass (Bromus tectorum L.) dominance in the Great Basin Desert—history, persistence, and influences to human activities. Glob. Environ. Chang. 6:3752.
Mack, R. N. and Foster, S. K. 2009. Eradicating plant invaders: combining ecologically based tactics and broad-sense strategy. Pages 3560 in Inderjit, , ed. Management of Invasive Weeds. New York Springer.
Mack, R. N. and Pyke, D. A. 1983. The demography of Bromus tectorum—variation in time and space. J. Ecol. 71:6993.
Masters, R. A. and Sheley, R. L. 2001. Principles and practices for managing rangeland invasive plants. J. Range Manag. 54:502517.
McIver, J. D., Bruson, M., Bunting, S. C., Chambers, J., Devoe, N., Doescher, P. S., Grace, J., Johnson, D., Knick, S., Miller, R., Pellent, M., Pierson, F., Pyke, D., Rollins, K., Roundy, B., Schupp, E., Tausch, R., and Turner, D. 2010. The Sagesteppe Treatment Evaluation Project (SageSTEP): A Test of State-and-Transition Theory. Fort Collins, CO U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station RMRS-GTR-237. 21 p.
Monsen, S. B. 2004. History of range and wildlife habitat restoration in the Intermountain West. Pages 15 in Monsen, S. B., Stevens, R., and Shaw, N. L., eds. Restoring Western Ranges and Wildlands. Volume 1. Fort Collins, CO U.S. Department of Agriculture Forest Service, Rocky Mountain Research Station RMRS-GTR-136.
Monsen, S. B. and Stevens, R. 2004. Seedbed preparation and seeding practices. Pages 122154 in Monsen, S. B., Stevens, R., and Shaw, N. L., eds. Restoring Western Ranges and Wildlands. Volume 1. Fort Collins, Colorado U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station RMRS-GTR-136.
Moody, M. E. and Mack, R. N. 1988. Controlling the spread of plant invasions—the importance of nascent foci. J. Appl. Ecol. 25:10091021.
Neuhauser, M. and Bretz, F. 2001. Nonparametric all-pairs multiple comparisons. Biometrical J. 43:571580.
[OPM] U.S. Office of Personnel Management. 2012. OPM.GOV: 2012 General Schedule (GS) Locality Pay Tables. http://www.opm.gov/oca/12tables/indexGS.asp. Accessed: March 23, 2012.
Orr, B. K. and Howald, A. M. 2000. A Flora of the Valentine Eastern Sierra Reserve. Santa Barbara, CA The Herbarium, Museum of Systematics and Ecology, MSE Environmental Rep. 16.
Owen, S. M., Sieg, C. H., and Gehring, C. A. 2011. Rehabilitating downy brome (Bromus tectorum)-invaded shrublands using imazapic and seeding with native shrubs. Invasive Plant Sci. Manag. 4:223233.
Pellant, M., Abbey, B., and Karl, S. 2004. Restoring the Great Basin Desert, USA: integrating science, management, and people. Environ. Monit. Assess. 99:169179.
Scopa, A. and Dumontet, S. 2007. Soil solarization: effects on soil microbiological parameters. J. Plant Nutr. 30:537547.
Teasdale, J. R. and Mohler, C. L. 2000. The quantitative relationship between weed emergence and the physical properties of mulches. Weed Sci. 48:385392.
Thill, D. C., Beck, K. G., and Callihan, R. H. 1984. The biology of downy brome (Bromus tectorum). Weed Sci. 32:712.
Tu, M., Hurd, C., Randall, J. M., and Conservancy, T. N. 2001. All U.S. Government Documents (Utah Regional Depository). Weed Control Methods Handbook: Tools & Techniques for Use in Natural Areas. http://digitalcommons.usu.edu/govdocs/533/. Accessed: January 22, 2012.
With, K. A. 2002. The landscape ecology of invasive spread. Conserv. Biol. 16:11921203.
Young, J. A., Evans, R. A., and Eckert, R. E. 1969. Population dynamics of downy brome. Weed Sci. 17:2026.
Zink, T. A. and Allen, M. F. 1998. The effects of organic amendments on the restoration of a disturbed coastal sage scrub habitat. Restor. Ecol. 6:5258.
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Invasive Plant Science and Management
  • ISSN: 1939-7291
  • EISSN: 1939-747X
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