Efficacy of Soybean's Event DAS-81419-2 Expressing Cry1F and Cry1Ac to Manage Key Tropical Lepidopteran Pests under Field Conditions in Brazil

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dc.contributor.authorMarques, L. H.
dc.contributor.authorCastro, B. A.
dc.contributor.authorRossetto, J.
dc.contributor.authorSilva, O. A.B.N.
dc.contributor.authorMoscardini, V. F.
dc.contributor.authorZobiole, L. H.S.
dc.contributor.authorSantos, A. C.
dc.contributor.authorValverde-Garcia, P.
dc.contributor.authorBabcock, J. M.
dc.contributor.authorRule, D. M.
dc.contributor.authorFernandes, O. A. [UNESP]
dc.contributor.institutionDow AgroSciences Industrial Ltda
dc.contributor.institutionDow AgroSciences LLC
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:05:16Z
dc.date.available2018-12-11T17:05:16Z
dc.date.issued2016-08-01
dc.description.abstractBacillus thuringiensis (Bt) event DAS-81419-2 (Conkesta technology) in soybean, Glycine max (L.) Merrill, expresses Cry1F and Cry1Ac proteins to provide protection from feeding by several lepidopteran pests. A total of 27 field experiments across nine locations were conducted from 2011 to 2015 in southern and central Brazil to characterize the efficacy of DAS-81419-2 soybean infested with Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae), Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae), Heliothis virescens (F.) (Lepidoptera: Noctuidae), and Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae) during vegetative (V4) and reproductive (R2 and R4) crop developmental stages. The efficacy of DAS-81419-2 was compared to that of a non-Bt isogenic variety managed with or without applications of commercial foliar insecticides for lepidopteran control. DAS-81419-2 soybean consistently experienced defoliation levels of 0.5% or less (compared with 20.05-56.74% in the non-Bt, nonsprayed treatment) and larval survival of < 0.1% in all four species across the vegetative and reproductive plant stages evaluated. The efficacy of DAS-81419-2 was significantly higher than commercial foliar insecticides applied to the non-Bt variety. DAS-81419-2 soybeans containing two highly effective Bt proteins are expected to be a more robust IRM tool compared to single-trait Bt technologies. The consistent efficacy of DAS-81419-2 soybeans across years, locations, and crop stages suggests that it will be a valuable product for management of hard-to-control key lepidopteran pests in South American soybean production.en
dc.description.affiliationDow AgroSciences Industrial Ltda, Av. Nações Unidas 14.171 - Diamond Tower
dc.description.affiliationDow AgroSciences LLC, 9330 Zionsville Rd.
dc.description.affiliationDepartamento de Fitossanidade FCAV/UNESP
dc.description.affiliationUnespDepartamento de Fitossanidade FCAV/UNESP
dc.format.extent1922-1928
dc.identifierhttp://dx.doi.org/10.1093/jee/tow153
dc.identifier.citationJournal of Economic Entomology, v. 109, n. 4, p. 1922-1928, 2016.
dc.identifier.doi10.1093/jee/tow153
dc.identifier.file2-s2.0-84983755289.pdf
dc.identifier.issn0022-0493
dc.identifier.scopus2-s2.0-84983755289
dc.identifier.urihttp://hdl.handle.net/11449/173414
dc.language.isoeng
dc.relation.ispartofJournal of Economic Entomology
dc.relation.ispartofsjr0,936
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAnticarsia gemmatalis
dc.subjectChrysodeixis includens
dc.subjectConkesta
dc.subjectHeliothis virescens
dc.subjectSpodoptera cosmioides
dc.titleEfficacy of Soybean's Event DAS-81419-2 Expressing Cry1F and Cry1Ac to Manage Key Tropical Lepidopteran Pests under Field Conditions in Brazilen
dc.typeArtigo

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