Data/hora: 15/06/2024 15:51:23

Biblioteca(s): | Embrapa Soja.
Data corrente: | 23/12/2014
Data da última atualização: | 09/05/2017
Autoria: | BORTOLOTTO, O. C.; SILVA, G. V.; BUENO, A. de F.; RODRIGUES, R. B.; QUEIROZ, A. P.
Afiliação: | ORCIAL C. BORTOLOTTO, UFPR; GABRIELA V. SILVA, UEL; ADENEY DE FREITAS BUENO, CNPSO; ROSENILDA B. RODRIGUES, UENP; ANA PAULA QUEIROZ, IAPAR.
Título: | The influence of Bt-maize on biological traits of Spodoptera eridania (Cramer, 1782) and Spodoptera frugiperda (Smith, 1789) (Lepidoptera: Noctuidae).
Ano de publicação: | 2014
Fonte/Imprenta: | In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 25., 2014, Goiânia. Entomologia integrada à sociedade para o desenvolvimento sustentável: anais. [Londrina]: SEB, 2014.
Páginas: | não paginado
Idioma: | Inglês
Conteúdo: | The cultivation of genetically modified plants (e.g. Bt-maize) is currently an alternative method of controlling major crops pests. Therefore, is important to know the influence of Bt-plants on pest and non-pest insects. This study aimed evaluate the impact of Cry1F and Cry1F+Cry1A.105+Cry2Ab2 proteins Bt expressed in corncobs on larval development of Spodoptera eridania (Cramer, 1782) and Spodoptera frugiperda (Smith, 1789) (Lepidoptera: Noctuidae). The immature grains were offered ad libitum to new-hatched larvae (until 24 hs old), to compare the development of the specimens fed to non-Bt corn (DOW 2B688) and two isogenic Bt, that express one (Cry1F) and three insecticides protein (Cry1F+Cry 1A.105+Cry2Ab2). The larvae survived less than two days when consumed both Bt immature grains and reach 100% of mortality. Spodoptera eridania reared on non-Bt corns grains shows a longer longevity (21.6 days) than S. frugiperda (18.4 days), but a lower viability (56.5% and 80.2% to S. eridania and S. frugiperda, respectively). Interesting, S. eridania consume a more amount immature grains (5.4g) than S. frugiperda (3.9 g). In summary, this study confirms that the toxins Cry1F, Cry1F+Cry 1A.105+Cry2Ab2 expressed in fresh corncobs are an important tool to protect the corn ears against S. frugiperda and the nontarget pest S. eridania, however is important monitored the non-Bt corn fields due the possibility of this species caused damage in ears corn.
Thesagro: | Espiga; Milho; Organismo transgênico.
Thesaurus Nal: | Corn; Corn cobs; Genetically modified organisms.
Categoria do assunto: | O Insetos e Entomologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/114488/1/adeney...influence.pdf
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (35626-1) - UPC - RA - DD -  -  -  - DIS