Mortality of Plutella xylostella larvae treated with Aspidosperma pyrifolium ethanol extracts
The objective of this work was to assess the effects of Aspidosperma pyrifolium ethanol extracts on cabbage moth (Plutella xylostella) larvae. The ethanol extracts of the stem bark, fruits and roots of A. pyrifolium were obtained by classical phytochemical methods, and the resulting subfractions wer...
| Main Authors: | Trindade, Roseane Cristina Prédes, Silva, Paulo Pedro da, Araújo-Júnior, João Xavier de, Lima, Ivanildo Soares de, Paula, José Elias de, Sant'Ana, Antônio Euzébio Goulart |
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| Format: | Artigo |
| Language: | English |
| Published: |
Embrapa Informação TecnológicaPesquisa Agropecuária Brasileira
2017
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| Subjects: | |
| Online Access: |
http://repositorio.unb.br/handle/10482/27191 |
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| Summary: |
The objective of this work was to assess the effects of Aspidosperma pyrifolium ethanol extracts on cabbage moth (Plutella xylostella) larvae. The ethanol extracts of the stem bark, fruits and roots of A. pyrifolium were obtained by classical phytochemical methods, and the resulting subfractions were tested on P. xylostella, using 4 and 5 mg L-1. The crude ethanol extract of the stem bark was more lethal. The alkaloid-rich aqueous subfraction derived from the stem bark extract caused 100% larval mortality at 4 mg L-1. Insecticidal activity was associated with the presence of the monoterpenoid indole alkaloids aspidofractinine, 15-demethoxypyrifoline, and N-formylaspidofractinine. These alkaloids presented excellent insecticidal properties against P. xylostella. |
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