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Atividade inseticida do óleo essencial de pimenta longa (Piper hispidinervum C. DC.) sobre lagarta-do-cartucho do milho Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lima, Rafaela Karin De Cardoso, Maria Das Graças Moraes, Jair Campos Melo, Bruno Almeida De Rodrigues, Vanessa Gregório Guimarães, Paula Lasmar |
| Copyright Year | 2009 |
| Abstract | The objectives of this research were to evaluate the chemical composition and bioactivity of the essential oil from the longpepper leaves (Piper hispidinervum) and its effect on the comportment and/or mortality of the fall armyworm (Spodoptera frugiperda). The essential oil was obtained by steam stream distillation, using the modified Clevenger apparatus, the chemical composition was analyzed by GC-MS and GC. Tests of ingestion and topical application in fall armyworm of 1 st and 3 rd instar were made. The results showed that the long-pepper essential oil has insecticide activity on S. frugiperda, causing mortality and food reduction, and safrole (82%) as its majority constituent. Mortality was found in the ingestion test in larvae of 1 st instar LC 50 = 16.2 mg/mL for larvae of 3 rd instar LC 50 = 9.4 mg/mL, with reduced food CD 50 = 0.72 mg/mL; and acute toxicity test of the contact topic with LD 50 = 277.91 μg/larvae, after an interval of 96 hours, neurotoxicity symptoms were also observed, as knock-down effect. |
| Starting Page | 377 |
| Ending Page | 382 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1590/S0044-59672009000200016 |
| Volume Number | 39 |
| Alternate Webpage(s) | https://acta.inpa.gov.br/fasciculos/39-2/PDF/v39n2a16.pdf |
| Alternate Webpage(s) | https://doi.org/10.1590/S0044-59672009000200016 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
