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Dynamic Benefit–Cost Analysis for Controlling Perennial Pepperweed (Lepidium latifolium): A Case Study

Published online by Cambridge University Press:  20 January 2017

Mark E. Eiswerth ,
Loretta Singletary ,
John R. Zimmerman  and
Wayne S. Johnson
Mark E. Eiswerth*
Affiliation:
Department of Economics, University of Wisconsin–Whitewater, 800 West Main Street, Whitewater, WI 53190
Loretta Singletary
Affiliation:
University of Nevada Cooperative Extension, Lyon County Office, 504 S. Main Street, Yerington, NV 89447
John R. Zimmerman
Affiliation:
University of Nevada, Reno, Reno, NV 89557
Wayne S. Johnson
Affiliation:
Department of Resource Economics, MS204, University of Nevada, Reno, Reno, NV 89557
*
Corresponding author's E-mail: [email protected]
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Abstract

Perennial pepperweed, found throughout the western United States, reduces biodiversity and causes economic losses in the form of control costs as well as decreased quantity and quality of agricultural yields. The future stream of net benefits of weed management and the future point in time at which they will have accumulated enough to equal total management costs were estimated under different land-use and expansion rate scenarios. Benefits and costs were calculated in present value terms by applying a rate of discount to future values. On land used solely for grazing, the total economic returns from management did not equal total costs until 15 yr after initial treatment. However, on land used for grazing plus hay harvest, cumulative benefits equaled and began to exceed cumulative costs after 4 to 5 yr. The costs and benefits of management efforts were also estimated for a landowner, who controls an adjacent infestation before it spreads. This landowner benefited economically from weed management in as little as 5 to 6 yr, highlighting the importance of cooperative efforts to control nearby weed infestations.

Keywords

Perennial pepperweedLepidium latifolium L. # LEPLAEconomic externalityeconomic impactseconomic thresholdGISGPSinvasive speciesinvasive weedsnonnative speciesAUM, animal unit monthsGIS, Geographic Information SystemGPS, Global Positioning System
Type
Research Article
Information
Weed Technology , Volume 19 , Issue 2 , June 2005 , pp. 237 - 243
Copyright
Copyright © Weed Science Society of America 

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