Biological characteristics of black armyworm Spodoptera cosmioides on genetically modified soybean and corn crops that express insecticide Cry proteins
| Autor: | O. C. Bortolotto, Antonio Cesar dos Santos, Adeney de Freitas Bueno, G. V. Silva, Aline Pomari-Fernandes |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Genetically modified maize fungi food and beverages Plant resistance 04 agricultural and veterinary sciences Genetically modified crops Biology 01 natural sciences Genetically modified soybean Genetically modified organism 010602 entomology Agronomy Cry1Ac Genetically modified organisms Insect Science Non-target pests lcsh:Zoology 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Instar PEST analysis lcsh:QL1-991 Black armyworm Hybrid |
| Zdroj: | Revista Brasileira de Entomologia, Vol 60, Iss 3, Pp 255-259 (2016) Revista Brasileira de Entomologia, Volume: 60, Issue: 3, Pages: 255-259, Published: SEP 2016 Revista Brasileira de Entomologia v.60 n.3 2016 Revista brasileira de entomologia Sociedade Brasileira De Entomologia (SBE) instacron:SBE |
| ISSN: | 1806-9665 |
| Popis: | This 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. Keywords: Black armyworm, Genetically modified organisms, Non-target pests, Plant resistance |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|