| Registro completo |
| Provedor de dados: |
AGRIAMBI
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| País: |
Brazil
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| Título: |
Insecticidal and growth inhibiting action of the supercritical extracts of Melia azedarach on Spodoptera frugiperda
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| Autores: |
Scapinello,Jaqueline
Oliveira,José V. de
Chiaradia,Luis A.
Tomazelli Junior,Osmar
Niero,Rivaldo
Dal Magro,Jacir
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| Data: |
2014-08-01
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| Ano: |
2014
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| Palavras-chave: |
Supercritical extraction
Fall armyworm
Chinaberry
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| Resumo: |
This study evaluates the effects of supercritical carbon dioxide extracts obtained from the fruit of Melia azedarach L. (Meliaceae) on the development of Spodoptera frugiperda J.E. Smith, 1797 (Lepidoptera: Noctuidae), from the larval period until the insect adulthood. For this purpose, a laboratory-scale extraction unit was operated at 60 °C and 200 bar. Larval mortality increased by raising the extract concentration tested: the value of LC50 calculated by Probit analysis was 376.74 mg kg-1, and at a concentration of 5000 mg kg-1, the mortality was 100%. The extract exhibited insect growth inhibitory activity in the higher concentrations (500 mg kg-1, 1000 mg kg-1 and 5000 mg kg-1), due to antifeedant action, resulting in larvae and pupae with mass and body length significantly smaller than the control. At the lowest concentration tested (100 mg kg-1), bioactive effects from the adult stage of the insect were observed, with low viability pupal and adults presenting morphological deformities, hence indicating chronic toxicity effect.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014000800014
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| Editor: |
Departamento de Engenharia Agrícola - UFCG
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| Relação: |
10.1590/1807-1929/agriambi.v18n08p866-872
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Engenharia Agrícola e Ambiental v.18 n.8 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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