02336nam a2200241 a 450000100080000000500110000800800410001910000220006024501780008226001670026030000180042752014660044565000090191165000140192065000350193465000110196965000100198065000270199070000170201770000200203470000210205470000190207520035742017-05-09       2014    bl uuuu     u00u1 u    #d1 aBORTOLOTTO, O. C.  aThe influence of Bt-maize on biological traits of Spodoptera eridania (Cramer, 1782) and Spodoptera frugiperda (Smith, 1789) (LepidopterabNoctuidae).h[electronic resource]  aIn: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 25., 2014, Goiânia. Entomologia integrada à sociedade para o desenvolvimento sustentável: anais. [Londrina]: SEBc2014  anão paginado  aThe 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.  aCorn  aCorn cobs  aGenetically modified organisms  aEspiga  aMilho  aOrganismo transgênico1 aSILVA, G. V.1 aBUENO, A. de F.1 aRODRIGUES, R. B.1 aQUEIROZ, A. P.