Consulta: creatorFacets:"Rondelli,Vando Miossi"
Registros recuperados: 3
Data/hora: 16/06/2024 03:47:46

Insecticidal activity of citronella grass essential oil on Frankliniella schultzei and Myzus persicae
Provedor de dados: 64
Autores: Pinheiro,Patrícia Fontes; Queiroz,Vagner Tebaldi de; Rondelli,Vando Miossi; Costa,Adilson Vidal; Marcelino,Tiago de Paula; Pratissoli,Dirceu.
The thrips, Frankliniella schultzei, and green peach aphid, Myzus persicae, cause direct damage to plants of economic importance and transmit phytoviruses, causing large economic losses. Chemical constituents of essential oils present a wide range of biological activities. The aim of this work was to evaluate insecticidal activity of essential oil from citronella grass, Cymbopogon winterianus, on F. schultzei and M. persicae. This essential oil was obtained by steam distillation and components were identified by GC/FID and GC/MS. A Potter spray tower was used to spray insects with the essential oil. The major constituents are geraniol (28.62%), citronellal (23.62%) and citronellol (17.10%). Essential oil of C. winterianus at 1% (w v-1) causes mortality in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cymbopogon winterianus; Thrips; Green peach aphid; Volatile components; Natural insecticide.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000200004

Ethanol extract of Cymbopogon winterianus on mortality and number of eggs of Tetranychus urticae
Provedor de dados: 65
Autores: Vicentini,Victor Bernardo; Pratissoli,Dirceu; Queiroz,Vagner Tebaldi de; Costa,Adilson Vidal; Pinheiro,Patrícia Fontes; Zinger,Fernando Domingo; Rondelli,Vando Miossi.
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...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Two-spotted spider mite; Alternative control; Neem; Plant extracts.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701154

Associação do óleo de mamona com Beauveria bassiana no controle da traça-das-crucíferas
Provedor de dados: 86
Autores: Rondelli,Vando Miossi; Pratissoli,Dirceu; Polanczyk,Ricardo Antonio; Marques,Edmilson Jacinto; Sturm,Gustavo Martins; Tiburcio,Marcel Oliveira.
O objetivo deste trabalho foi avaliar a eficiência, a estabilidade, a forma de aplicação e a compatibilidade do óleo de mamona com o fungo entomopatogênico Beauveria bassiana no controle da traça-das-crucíferas, Plutella xylostella. No primeiro experimento, foram avaliadas a eficiência, a estabilidade após 70 dias de armazenamento e a forma de aplicação do óleo de mamona. No segundo experimento, foi avaliada a compatibilidade do óleo de mamona com B. bassiana. A atividade inseticida do óleo de mamona é instável ao longo do tempo. O óleo de mamona é compatível com B. bassiana no controle de P. xylostella.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beauveria bassiana; Plutella xylostella; Ricinus communis; Fungo entomopatogênico.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000200014