Data/hora: 09/06/2024 01:03:53

Provedor de dados: | Brazilian Archives of Biology and Technology
País: | Brazil
Título: | Effect of the aqueous extracts of the seeds of Talisia esculenta and Sapindus saponaria on fall armyworm
Autores: | Santos,Wander Laizo dos; Freire,Maria das Graças M.; Bogorni,Paulo Cesar; Vendramim,José Djair; Macedo,Maria Lígia R.
Data: | 2008-04-01
Ano: | 2008
Palavras-chave: | Talisia esculenta; Sapindus saponaria; Sapindaceae; Spodoptera frugiperda; Natural insecticide.
Resumo: | The effect of aqueous extracts of Talisia esculenta (T.E.) and Sapindus saponaria (S.S.), were evaluated on the development and mortality of 8-14th day-life Spodoptera frugiperda, an important pest of maize. Corn leaves were dipped in the aqueous extracts (1% w/v) and offered as food to the caterpillars. The treated corn leaves with the extracts caused larval mortality (26.71%/T.E.; 63.3%/S.S.) and also showed effect on the larval weight (237.50 mg/T.E.; 86.65 mg/S.S.) when compared with the control (11.3% and 293.45 mg), mortality and larval weight, respectively. The electrophoresis with gelatin (0.1%) showed two very clear white areas (trypsin activity) in the caterpillars midgut of all the treatments. Only the caterpillar treated with S. saponaria presented significant differences, showing trypsin activity (10.59%). Sapindus saponaria appeared better than Talisia esculenta and showed good potential to be used as control agent for S. frugiperda.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000200018
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132008000200018
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.51 n.2 2008
Fonte: | info:eu-repo/semantics/openAccess