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Control of Yellow Starthistle (Centaurea solstitialis) and Coast Fiddleneck (Amsinckia menziesii) with Aminopyralid

Published online by Cambridge University Press:  20 January 2017

Guy B. Kyser
Affiliation:
University of California, Department of Plant Sciences, Davis, CA 95616
Vanelle Peterson
Affiliation:
Dow AgroSciences, 28884 S. Marshall Road, Mulino, OR 97042
Steve B. Orloff
Affiliation:
University of California Cooperative Extension, 1655 South Main Street, Yreka, CA 96097
Steven D. Wright
Affiliation:
University of California Cooperative Extension, 4437 S. Laspina St., Ste. B, Tulare, CA 93274
Joseph M. DiTomaso*
Affiliation:
University of California, Department of Plant Sciences, Davis, CA 95616
*
Corresponding author's E-mail: [email protected]

Abstract

Yellow starthistle is the most widespread broadleaf invasive plant in the western United States, and it is particularly prevalent in California. Prior to the registration of aminopyralid in 2005, the standard for chemical control of yellow starthistle was the herbicide clopyralid. We report on a compilation of several independent trials comparing the efficacy of aminopyralid and clopyralid on yellow starthistle. Treatments were applied at several rates and timings at 11 locations in four states between 2001 and 2007. Treatments were made pre-emergence and postemergence at the seedling and rosette stages of yellow starthistle. Results showed that aminopyralid, even at the low rate of 18 g ae ha−1, provided nearly complete control of yellow starthistle when treatments were made at the seedling stage. However, less consistent control (80 to 100%) resulted with applications made at the pre-emergence and rosette stages. At the seedling stage, aminopyralid is about four times more effective on yellow starthistle compared to clopyralid, based on the rate of acid equivalent. In the Central Valley of California, complete control was obtained at the lowest registered rate (53 g ae ha−1) when applications were made from December through February. At two locations we also evaluated control of the poisonous native plant coast fiddleneck. Although clopyralid does not adequately control coast fiddleneck, aminopyralid provided almost complete control when applied in the winter growing season. Applications of aminopyralid at the rosette stage resulted in a two-fold increase in annual forage grass biomass the following year. These results indicate that aminopyralid is a valuable tool for land managers and can play an important role in integrated management strategies for yellow starthistle and coast fiddleneck.

Type
Research
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Basler, E., Todd, G. W., and Meyer, R. E. 1961. Effects of moisture stress on absorption, translocation, and distribution of 2,4-dichlorophenoxyacetic acid in bean plants. Plant Physiol. 36:573576.Google Scholar
Benefield, C. B., DiTomaso, J. M., Kyser, G. B., Orloff, S. B., Churches, K. R., Marcum, D. B., and Nader, G. A. 1999. Success of mowing to control yellow starthistle depends on timing and plant's branching pattern. Calif. Agric. 53(2):1721.Google Scholar
Benefield, C. B., DiTomaso, J. M., Kyser, G. B., and Tschohl, A. 2001. Reproductive biology of yellow starthistle (Centaurea solstitialis): maximizing late season control. Weed Sci. 49:8390.Google Scholar
Bukun, B., Gaines, T. A., Nissen, S. J., Westra, P., Brunk, G., Shaner, D. L., Sleugh, B. B., and Peterson, V. F. 2009. Aminopyralid and clopyralid absorption and translocation in Canada thistle (Cirsium arvense). Weed Sci. 57:1015.Google Scholar
Burrows, G. E. and Tyrl, R. J. 2001. Toxic Plants of North America. Ames, IA Iowa State Univ. Press. 1342 p.Google Scholar
Callihan, R. H., Smith, L., and Michalson, E. L. 1995. Yellow Starthistle Management for Small Acreages. Moscow, ID University of Idaho College of Agriculture Current Information Ser. CIS 1025. 4 p.Google Scholar
Cheeke, P. R. 1988. Toxicity and metabolism of pyrrolizidine alkaloids. J. Anim. Sci. 66:23432350.Google Scholar
DiTomaso, J. M. and Healy, E. A. 2007. Weeds of California and Other Western States. Univ. Calif. Agric. Nat. Res. Pub. 3488. 1808 p.Google Scholar
DiTomaso, J. M., Kyser, G. B., Miller, J. R., Garcia, S., Smith, R. F., Nader, G., Connor, J. M., and Orloff, S. B. 2006a. Integrating prescribed burning and clopyralid for the management of yellow starthistle (Centaurea solstitialis). Weed Sci. 54:757767.Google Scholar
DiTomaso, J. M., Kyser, G. B., Orloff, S. B., Enloe, S. F., and Nader, G. A. 1999. New growth regulator herbicide provides excellent control of yellow starthistle. Calif. Agric. 53(2):1216.Google Scholar
DiTomaso, J. M., Kyser, G. B., and Pitcairn, M. J. 2006b. Yellow Starthistle Management Guide. Cal-IPC Publication 2006-03. Berkeley, CA California Invasive Plant Council. 74 p.Google Scholar
Duncan, C. A., Jachetta, J. J., Brown, M. L., Carrithers, V. F., Clark, J. K., DiTomaso, J. M., Lym, R. G., McDaniel, K. C., Renz, M. J., and Rice, P. M. 2004. Assessing the economic, environmental and societal losses from invasive plants on rangeland and wildlands. Weed Technol. 18:14111416.Google Scholar
Eagle, A. J., Eiswerth, M. E., Johnson, W. S., Schoenig, S. E., and van Kooten, G. C. 2007. Costs and losses imposed on California ranchers by yellow starthistle. Rangeland Ecol. Manag. 60:369377.Google Scholar
Enloe, S. F., DiTomaso, J. M., Orloff, S. B., and Drake, D. J. 2004. Soil water dynamics differ among rangeland plant communities dominated by yellow starthistle (Centaurea solstitialis), annual grasses, or perennial grasses. Weed Sci. 52:929935.Google Scholar
Enloe, S. F., DiTomaso, J. M., Orloff, S. B., and Drake, D. J. 2005. Perennial grass establishment integrated with clopyralid treatment for yellow starthistle management on annual range. Weed Technol. 19:94101.Google Scholar
Enloe, S. F., Kyser, G. B., Dewey, S. A., Peterson, V. F., and DiTomaso, J. M. 2008. Russian knapweed (Acroptilon repens) control with low rates of aminopyralid on range and pasture. Invasive Plant Sci. Manag. 1:385389.Google Scholar
Enloe, S. F., Lym, R. G., Wilson, R., Westra, P., Nissen, S., Beck, G., Moechnig, M., Peterson, V., Masters, R. A., and Halstvedt, M. 2007. Canada thistle (Cirsium arvense) control with aminopyralid in range, pasture, and noncrop areas. Weed Technol. 21:890894.Google Scholar
Ferrell, J. A., Mullahey, J. J., Langeland, K. A., and Kline, W. N. 2006. Control of tropical soda apple (Solanum viarum) with aminopyralid. Weed Technol. 20:453457.Google Scholar
Fuller, T. C. and McClintock, E. 1986. Poisonous Plants of California. Berkeley, CA University of California Press. 433 p.Google Scholar
Gaiser, D. R., Carrithers, V. F. and Duncan, C. 1997. Efficacy of picloram or clopyralid applications at three timings on spotted knapweed or yellow starthistle. Proc. Western Soc. Weed Sci. 50:4244.Google Scholar
Gutierrez, A. P., Pitcairn, M. J., Ellis, C. K., Carruthers, N., and Ghezelbash, R. 2005. Evaluating biological control of yellow starthistle (Centaurea solstitialis) in California: a GIS based supply–demand demographic model. Biol. Control 34:115131.Google Scholar
Hare, D. D., McFadden, A. G., McGregor, W. R., Juras, L. T., Satchivi, N. M., and Turnbull, G. C. 2005. Aminopyralid: a new herbicide for broadleaf weed control in rangeland and pastures in Canada and United States (abstract). Proc. Western Soc. Weed Sci. 58:59.Google Scholar
Johnson, W. G., Lavy, T. L., and Gbur, E. E. 1995. Sorption, mobility and degradation of triclopyr and 2,4-D on four soils. Weed Sci. 43:678684.Google Scholar
Larson, L. L. and McInnis, M. L. 1989. Response of yellow starthistle (Centaurea solstitialis) and grass biomass to grass, picloram, and fertilizer combinations. Weed Technol. 3:497500.Google Scholar
Lubbers, M. D., Stahlman, P. W., and Al-Khatib, K. 2007. Fluroxypyr efficacy is affected by relative humidity and soil moisture. Weed Sci. 55:260263.Google Scholar
O'Brien, J. M., Kyser, G. B., Woods, D. M., and DiTomaso, J. M. 2010. Effects of the rust Puccinia jaceae var. solstitialis on Centaurea solstitialis (yellow starthistle) growth and competition. Biol. Control 52:174181.Google Scholar
Radosevich, S. R., Roncoroni, E. J., Conard, S. G., and McHenry, W. B. 1980. Seasonal tolerance of six coniferous species to eight foliage-active herbicides. For. Sci. 26(1):39.Google Scholar
Roche, A. R., Bovey, R. W., and Senseman, S. A. 2002. Water stress and triclopyr on clopyralid efficacy in honey mesquite. J. Range Manag. 55:266269.Google Scholar
SAS Institute, Inc. 2008. JMP for Windows v. 8.0. Cary, NC SAS Institute, Inc.Google Scholar
Thirunarayanan, K., Kimdahl, R. L., and Smika, D. E. 1985. Chlorsulfuron adsorption and degradation in soil. Weed Sci. 33:558563.Google Scholar
Thomsen, C. D., Williams, W. A., and George, M. 1989. Managing yellow star thistle on rangeland. Calif. Agric. 43(5):47.Google Scholar
Walker, A. 1976. Simulation of herbicide persistence in soil. II. Simazine and linuron in long-term experiments. Pestic. Sci. 7:5058.Google Scholar
Walker, A. 1978. Simulation of the persistence of eight soil-applied herbicides. Weed Res. 18:305313.Google Scholar
Weaver, M. A. and Lyn, M. E. 2007. Compatibility of a biological control agent with herbicides for control of invasive plant species. Nat. Areas J. 26:264268.Google Scholar
Young, S. L., Barney, J. N., Kyser, G. B., Claassen, V. P., and DiTomaso, J. M. 2010. Spatio-temporal relationship between water depletion and root distribution patterns of Centaurea solstitialis and two native perennials. Restor. Ecol. 18:323333.Google Scholar
Young, S. L., Barney, J. N., Kyser, G. B., Claassen, V. P., and DiTomaso, J. M. 2011. The role of light and soil moisture in plant community resistance to invasion by yellow starthistle (Centaurea solstitialis). Restor. Ecol. doi: 10.1111/j.1526-100X.2010.00686.x 19(5): (in press).Google Scholar