Biological characteristics of black armyworm Spodoptera cosmioides on genetically modified soybean and corn crops that express insecticide Cry proteins.

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dc.contributorGABRIELA VIEIRA SILVA, UFPR; ADENEY DE FREITAS BUENO, CNPSO; ORCIAL CEOLIN BORTOLOTTO, UFPR; ANTÔNIO CÉSAR DOS SANTOS, Dow AgroSciences; ALINE POMARI-FERNANDES, Universidade Federal da Fronteira Sul.
dc.creatorSILVA, G. V.
dc.creatorBUENO, A. de F.
dc.creatorBORTOLOTTO, O. C.
dc.creatorSANTOS, A. C. dos
dc.creatorPOMARI-FERNANDES, A.
dc.date2016-08-19T11:11:11Z
dc.date2016-08-19T11:11:11Z
dc.date2016-08-19
dc.date2016
dc.date2017-06-21T11:11:11Z
dc.date.accessioned2026-07-07T11:54:02Z
dc.descriptionThis study aimed to evaluate the development and reproduction of the black armyworm, Spodoptera cosmioides when larvae fed on leaves of Bt-corn hybrids, expressing a single Cry1F and also Cry1F, Cry1A.105 and Cry2Ab2 in pyramided corn and their non-Bt-isoline (hybrid 2B688), as well as on leaves of two soybean isolines expressing the Cry1Ac protein and its non-Bt isoline (A5547-227). We also assessed the effect of these Bt and non-Bt plants on the leaf consumption rate of S. cosmioides larvae. This pest was unable to develop when fed on any of the corn isolines (Bt and non-Bt). When both 1st and 3rd instar larvae were fed on corn leaf, mortality was 100% in both Bt and non-Bt corn. In contrast, when corn leaves were offered to 5th instar larvae, there were survivors. Defoliation and leaf consumption was higher with non-Bt corn than with both of the Bt corn isolines. There was no negative effect of Bt soybean leaves on the development and reproduction of S. cosmioides with respect to all evaluated parameters. Our study indicates that both Bt and non-Bt corn adversely affect the development of S. cosmioides while Bt soybean did not affect its biology, suggesting that this lepidopteran has major potential to become an important pest in Bt soybean crops.
dc.identifierRevista Brasileira de Entomologia, v. 60, n. 3, p. 255-259, Sept. 2016.
dc.identifier1806-9665
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1051300
dc.identifier.urihttp://hdl.handle.net/123456789/516825
dc.languageeng
dc.rightsopenAccess
dc.subjectPlant transgênica
dc.subjectPraga de planta
dc.subjectSoja
dc.subjectMilho
dc.subjectInseticida
dc.subjectLagarta
dc.subjectPlant pests
dc.subjectInsect pests
dc.subjectCrop entomology
dc.subjectInsecticides
dc.subjectSoybeans
dc.subjectCorn
dc.subjectTransgenic plants
dc.subjectSpodoptera cosmioides
dc.subjectLarvae
dc.titleBiological characteristics of black armyworm Spodoptera cosmioides on genetically modified soybean and corn crops that express insecticide Cry proteins.
dc.typeArtigo de periódico

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