Mortality of Plutella xylostella larvae treated with Aspidosperma pyrifolium ethanol extracts

Pesquisa Agropecuária Brasileira

Roseane Cristina Prédes Trindade²  Paulo Pedro Da Silva²  João Xavier De Araújo-júnior¹  Ivanildo Soares De Lima²  José Elias De Paula¹  Antônio Euzébio Goulart Sant'ana¹ 

[1] ,Universidade Federal de Alagoas Centro de Ciências Agrárias Rio Largo AL ,Brazil

关键词: Brassica oleracea var. acephala;    alkaloids;    cabbage moth;    insecticidal activity;    organic extracts;    pereiro-do-sertão;    Brassica oleracea var. acephala;    alcalóides;    traça-das-crucíferas;    atividade inseticida;    extratos orgânicos;    pereiro-do-sertão;   

DOI  :  10.1590/S0100-204X2008001200024

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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