期刊论文详细信息
Pesquisa Agropecuária Brasileira
Bioactivity of Piper extracts on Tuta absoluta (Lepidoptera: Gelechiidae) in tomato
Elaine Ferrari De Brito1  Edson Luiz Lopes Baldin1  Roney De Carvalho Macedo Silva1  Leandro Do Prado Ribeiro1  José Djair Vendramim1 
关键词: Piper amalago var. medium;    botanical extracts;    piperamides;    tomato leafminer.;    Piper amalago var. medium;    extratos botânicos;    piperamidas;    traça-do-tomateiro.;   
DOI  :  10.1590/S0100-204X2015000300002
来源: SciELO
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【 摘 要 】

The objective of this work was to evaluate the bioactivity of ethanolic leaf extracts from four species of the genus Piper against the tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) under laboratory conditions. The evaluated species were: P. amalago var. medium, P. glabratum, P. mikanianum, and P. mollicomum. In the initial screening assay (extract concentration of 2,000 mg L-1), all tested extracts caused significant larval mortality, particularly the extract of P. amalago var. medium; however, no extracts reduced the weight of the surviving larvae. The extract from P. amalago var. medium at the concentration of 1,011 mg L-1 caused a significant lengthening of the larval and pupal stages. The ethanolic leaf extract of P. amalago var. medium is promising for the control of T. absoluta larvae in tomato, since it exhibits acute toxicity toward these caterpillars at the concentration of 2,000 mg L-1 and affects the insect's development by reducing its survival and lengthening the larval and pupal stages.

【 授权许可】

CC BY   
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