Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-26T04:10:25.472Z Has data issue: false hasContentIssue false

Effectiveness of herbicides on Lysimachia vulgaris: a 17-year case study

Published online by Cambridge University Press:  14 October 2020

Marisa R. De Luccia
Affiliation:
Undergraduate Research Assistant, School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA
Ben Peterson
Affiliation:
Aquatic Noxious Weed Specialist, King County Noxious Weed Control Program, Seattle, WA, USA
Michael J. Bradshaw
Affiliation:
Ph.D Candidate, School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA
Patrick C. Tobin*
Affiliation:
Associate Professor, School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA
*
Author for correspondence: Patrick C. Tobin, University of Washington, School of Environmental and Forest Sciences, 123 Anderson Hall, 3715 W. Stevens Way NE, Seattle, WA98195. (Email: pctobin@uw.edu)

Abstract

Garden loosestrife (Lysimachia vulgaris L.), is an invasive wetland plant that is subject to management in King County, WA, USA. Large-scale management efforts are generally conducted using herbicides. In this case study, we analyzed 17 yr of monitoring and treatment data in four riparian areas in King County to estimate the rate of spread of L. vulgaris and the efficacy of herbicidal treatments against L. vulgaris populations. In each area, herbicide treatments were applied annually. In three of the areas, the area infested with L. vulgaris did not change over time, while in the fourth area populations of L. vulgaris were spreading at a rate of 0.79 m2 yr−1. There were a greater number of sampled locations infested with L. vulgaris over the 17-yr period, and because populations were either not spreading or spreading slowly, it is possible that populations were becoming more fragmented. There was no relationship between the percentage of the infested area treated with herbicides and the area infested in the following year. However, there was a negative relationship between the area treated and the percent change in the invaded area; specifically, in years when <80% of the infested area was treated, there was an increase in the percent change of the invaded area between the year of treatment and the following year. The results of this study suggest that at the current level of management effort, the spatial extent of L. vulgaris did not retract over the 17-yr study period.

Type
Case Study
Copyright
© The Author(s), 2020. Published by Cambridge University Press on behalf of the Weed Science Society of America

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Associate Editor: Steven S. Seefeldt, Washington State University

References

Bureau of Land Management (2015) Integrated Invasive Plant Management: Environmental Assessment. Burns District, OR: U.S. Department of the Interior. 66 pGoogle Scholar
Dahl, TE (1990) Wetlands: losses in the United States 1780s to 1980s. Washington, DC: U.S. Department of the Interior, Fish and Wildlife Service. 13 pGoogle Scholar
Dillon, K, Reichard, SH (2014) Effect of temperature of the seed germination of garden loosestrife (Lysimachia vulgaris L.). Nat Areas J 34:212215 CrossRefGoogle Scholar
Gianelli, VR, Bedmar, F, Costa, JL (2013) Persistence and sorption of imazapyr in three Argentinean soils. Environ Toxicol Chem 33:2934 CrossRefGoogle ScholarPubMed
Gilbert, M, Liebhold, AM (2010) Comparing methods for measuring the rate of spread of invading populations. Ecography 33:809817 CrossRefGoogle Scholar
Kauffman, JB (1988) The Status of Riparian Habitats in Pacific Northwest Forests. Boise, ID: U.S. Department of Agriculture, Forest Service. 11 pGoogle Scholar
Klinkenberg, B (2019) E-Flora BC: Electronic Atlas of the Flora of British Columbia. Vancouver: Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia. https://ibis.geog.ubc.ca/biodiversity/eflora/. Accessed: January 21, 2019Google Scholar
McDowell, RW, Condron, LM, Main, BE, Dastgheib, F (1997) Dissipation of imazapyr, flumetsulam and thifensulfuron in soil. Weed Res 37:381389 CrossRefGoogle Scholar
Messick, KS, Kerr, D (2007) Garden loosestrife (Lysimachia vulgaris), a spreading threat in western waterways. Pages 5358 in Harrington, TB, Reichard, SH, tech. eds. Meeting the Challenge: Invasive Plants in Pacific Northwest Ecosystems. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station Gen. Tech. Rep. PNW-GTR-694Google Scholar
R Core Team (2018) R: A Language and Environment for Statistical Computing. Vienna, Austria: R Foundation for Statistical Computing. http://www.R-project.org Google Scholar
Shigesada, N, Kawasaki, K (1997) Biological Invasions: Theory and Practice. New York: Oxford University Press. 205 p Google Scholar
Taylor, KM (2017) Competitive Interactions and Rhizome Reproductive Capacity of an Invasive Plant, Garden Loosestrife (Lysimachia vulgaris L.). MS thesis. Seattle, WA: University of Washington. 47 pGoogle Scholar
Tobin, PC, Berec, L, Liebhold, AM (2011) Exploiting Allee effects for managing biological invasions. Ecol Lett 14:615624 CrossRefGoogle ScholarPubMed
Tobin, PC, Liebhold, AM, Roberts, EA (2007) Comparison of methods for estimating the spread of a non-indigenous species. J Biogeogr 34:305312 CrossRefGoogle Scholar
U.S. Environmental Protection Agency (2006) Reregistration Eligibility Decision for Imazapyr. Washington, DC: Prevention, Pesticides and Toxic Substances, U.S. Environmental Protection Agency. Pp 717 Google Scholar
Washington State Noxious Weed Control Board (2019) Written Findings of the Washington State Noxious Weed Control Board (Lysimachia vulgaris L). https://www.nwcb.wa.gov/images/weeds/Lysimachia-vulgaris-1998.pdf. Accessed: October 15, 2019Google Scholar
Zedler, JB, Kercher, S (2004) Causes and consequences of invasive plants in wetlands: opportunities, opportunists, and outcomes. Crit Rev Plant Sci 23:431452 CrossRefGoogle Scholar