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Economic Assessment
In 1999 the 70th Oregon Legislative Assembly passed House Bill 2118, which instructed the Oregon Department of Agriculture (ODA) to develop a strategic plan to address the growing problem of invasive noxious weeds.  As part of the strategic planning process, ODA and Oregon State University (OSU), through the Oregon Agriculture Research Foundation, conducted an economic study to assess the impacts of 21 of the 99 weeds listed in Oregon as noxious.  This assessment focused on two aspects of concern: the existing impacts on Oregon's resources of several noxious weeds, and the potential impacts caused by continuing invasion and expansion of noxious weeds. The Economic Assessment document is lengthy for downloading so it has been broken into sections. 

All files are provided in Adobe Acrobat pdf format. A free copy of the Acrobat Reader can be downloaded from the Adobe web site.

Main Document
  • Part A Includes: Preface, Table of Contents, Executive Summary
  • Part B Includes: Introduction, Modeling Procedures, Modeling Approach, Results, Risk and Uncertainty, Policy Implications, Bibliography.
Description by Species
  • A1: pages 1-10
  • A2: pages 11-20
  • A3: pages 21-32
  • A4: pages 33-42
  • Appendix B and C Includes: Past studies by Species and affected land type
    economic evaluation model