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	Provedor de dados Anais da SEB (1) Ciência e Agrotecnologia (1) Autor Costa,Adilson Vidal (1) Furiatti,Rui S. (1) M. N. Lázzari,Sonia (1) Marcelino,Tiago de Paula (1) Pinheiro,Patrícia Fontes (1) Pratissoli,Dirceu (1) Queiroz,Vagner Tebaldi de (1) Rondelli,Vando Miossi (1) Mais... Palavra-chave Green peach aphid (2) Colorimetric assay (1) Cymbopogon winterianus (1) Insecta (1) Natural insecticide (1) Pirimicarb resistance (1) Resistance frequency (1) Thrips (1) Total esterases (1) Volatile components (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2013 (1) 2000 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Effect of pirimicarb application on field ppulations of Myzus persicae (Sulz.) (Homoptera: Aphididae) with different esterase levels Anais da SEB Furiatti,Rui S.; M. N. Lázzari,Sonia. The frequency and intensity of Myzus persicae (Sulz.) resistance were studied using bioassays and biochemical tests in two potato crops in Ibicoara, Bahia. Both areas received several insecticide applications which failed to control M. persicae. By the end of the crop season, one of the areas received two applications of pirimicarb and the other was not sprayed. Six samples of 700 aphids each were randomly collected before and after the pirimicarb applications, with an interval of four days. Specimens of M. persicae were also collected from isolated potato plants. At the laboratory, the samples were characterized by the CL50 based on insecticide bioassays and by total esterase activity using colorimetric assays. After the pirimicarb applications, the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Pirimicarb resistance; Resistance frequency; Total esterases; Colorimetric assay; Green peach aphid. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000400014 Insecticidal activity of citronella grass essential oil on Frankliniella schultzei and Myzus persicae Ciência e Agrotecnologia 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 Registros recuperados: 2 Primeira ... 1 ... Última

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