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Assessment Of The Extent And Success Of Leafy Spurge Biological Control Agents

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  • Hodur, Nancy M.
  • Leistritz, F. Larry
  • Bangsund, Dean A.

Abstract

Leafy spurge is an exotic, noxious, perennial weed which is widely established in the north central United States and is an especially serious problem in the northern Great Plains. In 1997, the Agricultural Research Service and the Animal and Plant Health Inspection Service of the U.S. Department of Agriculture (USDA), initiated a major Integrated Pest Management (IPM) research and demonstration project, TEAM Leafy Spurge (TLS), to develop and demonstrate ecologically based IPM strategies that can produce effective, affordable leafy spurge control. A key component of the project was to expand the use of biological control (biocontrol) agents, specifically flea beetles. To assess the level of insect establishment and the level of current and perceived future control of leafy spurge, a mail survey was conducted of 468 individuals who obtained biocontrol agents (insects) at TLS-sponsored events, as well as County Weed Boards in North Dakota, South Dakota, Montana, and Wyoming. Respondents reported basic information about the number and characteristics of release sites, characteristics of leafy spurge stands, as well as the level of control to date and perceived level of eventual control. Substantial numbers of landowners and County Weed Boards have utilized biocontrol agents as part of their leafy spurge control efforts, as well as collected flea beetles from release sites for redistribution. Respondents indicated biocontrol efforts are affecting at least some level of control and, in some cases, reported substantial reductions in spurge stands.

Suggested Citation

  • Hodur, Nancy M. & Leistritz, F. Larry & Bangsund, Dean A., 2004. "Assessment Of The Extent And Success Of Leafy Spurge Biological Control Agents," Agribusiness & Applied Economics Report 23643, North Dakota State University, Department of Agribusiness and Applied Economics.
    • Handle: RePEc:ags:nddaae:23643
    DOI: 10.22004/ag.econ.23643
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    References listed on IDEAS

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    1. Hodur, Nancy M. & Leistritz, F. Larry & Bangsund, Dean A., 2002. "Perceptions Of Leafy Spurge And Evaluation Of The Team Leafy Spurge Project, By Public Land Managers, Local Decision Makers, And Ranch Operators," Agribusiness & Applied Economics Report 23539, North Dakota State University, Department of Agribusiness and Applied Economics.
    2. Hodur, Nancy M. & Leistritz, F. Larry & Bangsund, Dean A., 2002. "Ranch Operators' Perceptions Of Leafy Spurge Management And Evaluation Of The Team Leafy Spurge Project," Agribusiness & Applied Economics Report 23522, North Dakota State University, Department of Agribusiness and Applied Economics.
    3. Leistritz, F. Larry & Hodur, Nancy M. & Bangsund, Dean A., 2002. "Perceptions Of Leafy Spurge And Evaluation Of The Team Leafy Spurge Project By Public Land Managers, Local Decision Makers, And Ranch Operators--Summary," Agribusiness & Applied Economics Report 23544, North Dakota State University, Department of Agribusiness and Applied Economics.
    4. 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.
    5. Bangsund, Dean A. & Leitch, Jay A. & Leistritz, F. Larry, 1996. "Economics Of Herbicide Control Of Leafy Spurge (Euphorbia Esula L.)," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 21(2), pages 1-15, December.
    6. Bangsund, Dean A. & Leistritz, F. Larry & Leitch, Jay A., 1997. "Predicted Future Economic Impacts Of Biological Control Of Leafy Spurge In The Upper Midwest," Agricultural Economics Reports 23130, North Dakota State University, Department of Agribusiness and Applied Economics.
    7. Bangsund, Dean A. & Leistritz, F. Larry & Leitch, Jay A., 1997. "Predicted Future Economic Impacts Of Biological Control Of Leafy Spurge In The Upper Midwest; Summary," Agricultural Economics Reports 23232, North Dakota State University, Department of Agribusiness and Applied Economics.
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