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The Impact Of Knapweed On Montana'S Economy

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  • Hirsch, Steven A.
  • Leitch, Jay A.
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    Abstract

    The economic impact of three invasive, exotic weeds--diffuse, spotted, and Russian knapweed (Centaurea diffusa, C. maculosa, and Acroptilon repens)--on Montana's economy was estimated using a procedure developed for another invasive weed species. Published data and that from a survey of county weed boards were used to estimate direct negative impacts of over $14 million annually due to infestation of over 2 million acres of rangeland and wildland. This amounts to about $10.63 on each infested grazing land acre and $3.95 on each infested wildland acre. Direct plus secondary economic impacts, estimated using an input-output model, are about $42 million annually, which could support over 500 jobs in the state's economy. This first approximation suggests the knapweed infestation problem in Montana deserves attention, although more work could be done to refine these estimates and to allow estimation of the impacts at sub-state levels.

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    Bibliographic Info

    Paper provided by North Dakota State University, Department of Agribusiness and Applied Economics in its series Agricultural Economics Reports with number 23289.

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    Date of creation: 1996
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    Handle: RePEc:ags:nddaer:23289

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    Postal: PO Box 5636, Fargo, ND 58105-5636
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    Web page: http://www.ext.nodak.edu/homepages/aedept/
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    Keywords: knapweed (Centaurea diffusa; C. maculosa; and Acroptilon repens); Montana; economic impact; invasive weeds; rangeland; wildland; Resource /Energy Economics and Policy;

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    1. Leitch, Jay A. & Leistritz, F. Larry & Bangsund, Dean A., 1994. "Economic Effect of Leafy Spurge in the Upper Great Plains: Methods, Models, and Results," Agricultural Economics Reports 23196, North Dakota State University, Department of Agribusiness and Applied Economics.
    2. Coon, Randal C. & Leistritz, F. Larry & Hertsgaard, Thor A. & Leholm, Arlen G., 1985. "The North Dakota Input-Output Model: A Tool for Analyzing Economic Linkages," Agricultural Economics Reports 23304, North Dakota State University, Department of Agribusiness and Applied Economics.
    3. Bangsund, Dean A. & Leistritz, F. Larry, 1991. "Economic Impact of Leafy Spurge in Montana, South Dakota, and Wyoming," Agricultural Economics Reports 23433, North Dakota State University, Department of Agribusiness and Applied Economics.
    4. Bangsund, Dean A. & Baltezore, James F. & Leitch, Jay A. & Leistritz, F. Larry, 1993. "Economic Impact of Leafy Spurge on Wildland in Montana, South Dakota, and Wyoming," Agricultural Economics Reports 23131, North Dakota State University, Department of Agribusiness and Applied Economics.
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    Cited by:
    1. Roxana Julia & David W. Holland & Joseph Guenthner, 2007. "Yellow starthistle (Centaurea solsitialis, L.) is an invasive weed that creates problems for the management of Idaho's rangelands. A bioeconomic approach combined with an input-output economic model i," Rensselaer Working Papers in Economics 0702, Rensselaer Polytechnic Institute, Department of Economics.

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