Data/hora: 17/06/2024 19:45:38

Provedor de dados: | 65
País: | Brazil
Título: | Ethanol extract of Cymbopogon winterianus on mortality and number of eggs of Tetranychus urticae
Autores: | Vicentini,Victor Bernardo; Pratissoli,Dirceu; Queiroz,Vagner Tebaldi de; Costa,Adilson Vidal; Pinheiro,Patrícia Fontes; Zinger,Fernando Domingo; Rondelli,Vando Miossi.
Data: | 2015-07-01
Ano: | 2015
Palavras-chave: | Two-spotted spider mite; Alternative control; Neem; Plant extracts.
Resumo: | Plant extracts have been studied as a promising source of natural insecticides. This study assessed the effect of the ethanol extract of Cymbopogon winterianus Jowitt (citronella grass) in comparison with an insecticide containing azadirachtin (ICA) on mortality and number of eggs of Tetranychus urticae Koch (Acari: Tetranychidae) in laboratory conditions. For the tests, the mites were sprayed with the aid of a Potter spray tower. To assess the mortality of females, LC50 value for extract of citronella grass and ICA was, respectively, 2.63 and 2.83%. With respect to the number of eggs, the greatest reduction was observed at a concentration of 5% for the evaluation period of 120h, both for the extract of citronella grass (86%) and for ICA (81%). These results suggest the potential of the ethanol extract of citronella grass to control of T. urticae. However, experiments, under field conditions, involving other populations of T. urticae should be performed to verify the efficacy of this extract as an alternative to be used in pest management programs
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701154
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20140175
Formato: | text/html
Fonte: | Ciência Rural  v.45 n.7 2015
Fonte: | info:eu-repo/semantics/openAccess