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Effects of transgenic Bacillus thuringiensis cotton on insecticide use, heliothine counts, plant damage, and cotton yield: A meta-analysis, 1996-2015

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dc.contributor.authorFleming, Danielen
dc.contributor.authorMusser, Freden
dc.contributor.authorReisig, Dominicen
dc.contributor.authorGreene, Jeremy K.en
dc.contributor.authorTaylor, Sally V.en
dc.contributor.authorParajulee, Meghaen
dc.contributor.authorLorenz, Gusen
dc.contributor.authorCatchot, Angusen
dc.contributor.authorGore, Jeffreyen
dc.contributor.authorKerns, Daviden
dc.contributor.authorStewart, Scotten
dc.contributor.authorBoykin, Deborahen
dc.contributor.authorCaprio, Michaelen
dc.contributor.authorLittle, Nathanen
dc.contributor.departmentVirginia Agricultural Experiment Stationen
dc.date.accessioned2019-05-31T16:51:01Zen
dc.date.available2019-05-31T16:51:01Zen
dc.date.issued2018-07-19en
dc.description.abstractThe primary management tactic for lepidopteran pests of cotton in the United States of America (USA) is the use of transgenic cotton that produces Bacillus thuringiensis Berliner (Bt) toxins. The primary target pests of this technology are Helicoverpa zea (Boddie) and Heliothis virescens (F.) in the eastern and central Cotton Belt of the USA. Concerns over the evolution of resistance in H. zea to Bt toxins and scrutiny of the necessity of Btcrops has escalated. We reviewed published and unpublished data from field trials of Btcotton in the eastern and central Cotton Belt of the USA through 2015 to evaluate the effectiveness of Bt cotton (Bollgard, Bollgard II, WideStrike, WideStrike 3, and TwinLink). Btcotton reduced insecticide usage, reduced heliothine pest numbers and damage, and provided a yield benefit, but Bollgard II and WideStrike efficacy declined in the Midsouth over the period evaluated. In the Southeastern region, heliothine damage remained constant through 2015, but yield benefits declined from 2010 until 2015. Resistance of H. zea to several Bttoxins is the most plausible explanation for the observed changes in Btcotton efficacy. The introduction of new Bttoxins such as found in Widestrike 3 and Twinlink may preserve the benefits of Bt crops. However, while both Widestrike 3 and Twinlink had less damage than Widestrike, damage levels of both were similar to Bollgard II.en
dc.description.notesThis project was partially funded through United States Department of Agriculture Specific Cooperative Agreement USDA-SCA 58-6402-3-038 received by FM. This agreement provided support in the form of salary for one author (DF). NL was the USDA representative overseeing the agreement who participated as a co-author from idea development through paper review. Additional support came from Mississippi State University Hatch Project MIS-311280 for the support of FM.en
dc.description.sponsorshipUnited States Department of Agriculture [USDA-SCA 58-6402-3-038]; Mississippi State University [MIS-311280]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0200131en
dc.identifier.eissn1932-6203en
dc.identifier.issue7en
dc.identifier.othere0200131en
dc.identifier.pmid30024919en
dc.identifier.urihttp://hdl.handle.net/10919/89663en
dc.identifier.volume13en
dc.language.isoenen
dc.publisherPLOSen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleEffects of transgenic Bacillus thuringiensis cotton on insecticide use, heliothine counts, plant damage, and cotton yield: A meta-analysis, 1996-2015en
dc.title.serialPLOS ONEen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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