Resistance to Bt Corn by Western Corn Rootworm (Coleoptera: Chrysomelidae) in the U.S. Corn Belt

dc.contributor.author Cullen, Eileen
dc.contributor.author Gray, Michael
dc.contributor.author Gassmann, Aaron
dc.contributor.author Gassmann, Aaron
dc.contributor.author Hibbard, Bruce
dc.contributor.department Entomology
dc.date 2018-02-14T18:30:46.000
dc.date.accessioned 2020-06-30T02:22:13Z
dc.date.available 2020-06-30T02:22:13Z
dc.date.embargo 2014-09-25
dc.date.issued 2013-01-01
dc.description.abstract <p>Transgenic Bt corn hybrids that produce insecticidal proteins from the bacterium <em>Bacillus thuringiensis</em> Berliner have become the standard insect management tactic across the U.S. Corn Belt. Widespread planting of Bt corn places intense selection pressure on target insects to develop resistance, and evolution of resistance threatens to erode benefits associated with Bt corn, such as reduced reliance on conventional insecticides. Recognizing the threat of resistance, the U.S. Environmental Protection Agency requires seed companies to include an insect resistance management (IRM) plan when registering a Bt trait. The goal of IRM plans is to delay Bt resistance in populations of target insects. One element of IRM is the presence of a non-Bt refuge to maintain Bt-susceptible individuals within a population, and growers are required to implement IRM on-farm by planting a refuge. Field-evolved resistance has not been detected for the European corn borer, <em>Ostrinia nubilalis</em> (Hubner), even though this species has been exposed to Bt proteins common in U.S. corn hybrids since 1996. The IRM situation is unfolding differently for Bt corn targeting the western corn rootworm, <em>Diabrotica virgifera virgifera</em> LeConte. In this article, we examine the scientific evidence for <em>D. v. virgifera</em> resistance to Bt rootworm traits and the cropping system practices that have contributed to the first reports of field-evolved resistance to a Bt toxin by <em>D. v. virgifera</em>. We explain why this issue has developed, and emphasize the necessity of an integrated pest management approach to address the issue.</p>
dc.description.comments <p>This article is from <em>Journal of Integrated Pest Management</em> 4 (2013): D1, doi:<a href="http://dx.doi.org/10.1603/IPM13012" target="_self">10.1603/IPM13012</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ent_pubs/177/
dc.identifier.articleid 1176
dc.identifier.contextkey 6163072
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ent_pubs/177
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/23781
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ent_pubs/177/2013_Gassmann_ResistanceBtCorn.pdf|||Fri Jan 14 21:27:31 UTC 2022
dc.source.uri 10.1603/IPM13012
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Entomology
dc.subject.disciplines Systems Biology
dc.subject.keywords Bt corn
dc.subject.keywords IPM
dc.subject.keywords insect resistance management
dc.subject.keywords refuge
dc.subject.keywords western corn rootworm
dc.title Resistance to Bt Corn by Western Corn Rootworm (Coleoptera: Chrysomelidae) in the U.S. Corn Belt
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 59bd52a0-183d-4ea1-b353-4b07440b1e9f
relation.isOrgUnitOfPublication f47c8cad-50be-4fb0-8870-902ff536748c
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