Show simple item record

dc.contributor.authorGriffith, D.
dc.contributor.authorLacey, J. R.
dc.date.accessioned2020-09-24T02:29:22Z
dc.date.available2020-09-24T02:29:22Z
dc.date.issued1991-01-01
dc.identifier.citationGriffith, D., & Lacey, J. R. (1991). Economic evaluation of spotted knapweed [Centaurea maculosa] control using picloram. Journal of Range Management, 44(1), 43-47.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4002636
dc.identifier.urihttp://hdl.handle.net/10150/644850
dc.description.abstractSpotted knapweed is the most serious range weed problem in western Montana. Although picloram is often used to control knapweed, the economic feasibility of the practice has not been evaluated. We developed a model to economically evaluate spotted knapweed control on rangeland. Model functions describing the dynamics of the plant community preceding and following treatment were derived from field observations in western Montana. Economic returns per management unit were calculated for 3 scenarios: (1) no treatment, (2) containment, and (3) eradication of spotted knapweed. After tax costs and benefits of treatments were analyzed for a 20-year period and discounted to the present. An economic loss in current dollars of 2.38/ha was incurred under the no treatment strategy when 25% of the management unit was initiaily infested with spotted knapweed and the weed was spreading to new acres and replacing desirable forage. After-tax present value of added AUMs in the eradication strategy was greater than the after-tax present value of added costs, 3.41/ha and l.99/ha, respectively. As site productivity, value of an AUM, and rate of knapweed spread to new acres increased, economic returns increased relative to treatment costs. In contrast, herbicide treatment became least cost-effective as knapweed utilization by livestock increased. Thus, economic feasibility of spotted knapweed control varied with economic and biologic conditions.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectfeasibility studies
dc.subjectmathematical models
dc.subjectcost-benefit analysis
dc.subjectweed control
dc.subjectchemical control
dc.subjectpastures
dc.subjectpicloram
dc.subjectCentaurea maculosa
dc.subjectrange management
dc.subjectMontana
dc.subjectforage
dc.titleEconomic evaluation of spotted knapweed [Centaurea maculosa] control using picloram
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.noteThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume44
dc.source.issue1
dc.source.beginpage43-47
refterms.dateFOA2020-09-24T02:29:22Z


Files in this item

Thumbnail
Name:
8555-8436-1-PB.pdf
Size:
631.8Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record