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dc.contributor.authorShewchuk, B. A.
dc.contributor.authorKerr, W. A.
dc.date.accessioned2020-09-23T20:18:29Z
dc.date.available2020-09-23T20:18:29Z
dc.date.issued1993-09-01
dc.identifier.citationShewchuk, B. A., & Kerr, W. A. (1993). Returns to grasshopper control on rangelands in southern Alberta. Journal of Range Management, 46(5), 458-462.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4002667
dc.identifier.urihttp://hdl.handle.net/10150/644619
dc.description.abstractEconomic injury levels (EILs)—the minimum density of insects that would be required to warrant treatment—were estimated for the 4 most common insecticides sprayed on grasshoppers in Alberta. The results indicate that under the assumed conditions spraying was rarely profitable unless the pests were at very high outbreak levels (>30/M2), the benefits of control lasted more than 1 season or the producers' treatment costs were substantially subsidized by a provincial government rebate program. Estimates vary considerably depending on several parameter values. The most important variables were the cost, life, and efficacy of treatments, the derived price of forage, and assumptions regarding grasshopper population dynamics.
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.subjectinsecticides
dc.subjectcost-benefit analysis
dc.subjectAlberta
dc.subjectrange management
dc.subjectrangelands
dc.subjectinsect pests
dc.titleReturns to grasshopper control on rangelands in southern Alberta
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.volume46
dc.source.issue5
dc.source.beginpage458-462
refterms.dateFOA2020-09-23T20:18:29Z


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