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	Provedor de dados Scientia Agricola (3) Rev. Bras. entomol. (1) Rev. Bras. Frutic. (1) Autor Lopes,João Roberto Spotti (5) Almeida,Rodrigo Piacentini Paes de (2) Botton,Marcos (2) Miranda,Marcelo Pedreira de (2) Ringenberg,Rudiney (2) Azevedo Filho,Wilson Sampaio de (1) Azevedo-Filho,Wilson Sampaio de (1) Bonani,Jean Patrick (1) Borgatto,Adriano Ferreti (1) Carvalho,Gervásio Silva (1) Demétrio,Clarice Garcia Borges (1) Giustolin,Teresinha Augusta (1) Marques,Rodrigo Neves (1) Marucci,Rosangela Cristina (1) Miquelote,Helen (1) Müller,Cristiane (1) Paladini,Andressa (1) Paranhos,Beatriz Aguiar Jordão (1) Prado,Simone de Souza (1) Viola,Denise Nunes (1) Mais... Palavra-chave Citrus variegated chlorosis (2) Coffee leaf scorch (2) Vitis vinifera (2) Bacterial population (1) Cicadellinae (1) Clorose variegada dos citros (1) Comportamento alimentar (1) Epidemiology (1) Homalodisca spottii (1) Inoculum concentration (1) Insecta (1) Leafhopper (1) Oviposition (1) Pierce's disease (1) Rearing technique (1) Sharpshooter vectors (1) Taxonomy (1) Vernonia condensata (1) Mais... Tipo do documento Info:eu-repo/semantics/article (5) Ano 2014 (1) 2008 (3) 2003 (1) País Brazil (5) Idioma Inglês (4) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 5 Primeira ... 1 ... Última Survey of potential sharpshooter and spittlebug vectors of Xylella fastidiosa to grapevines at the São Francisco River Valley, Brazil Rev. Bras. entomol. Ringenberg,Rudiney; Lopes,João Roberto Spotti; Müller,Cristiane; Azevedo-Filho,Wilson Sampaio de; Paranhos,Beatriz Aguiar Jordão; Botton,Marcos. Survey of potential sharpshooter and spittlebug vectors of Xylella fastidiosa to grapevines at the São Francisco River Valley, Brazil. Pierce's disease of grapevines, caused by Xylella fastidiosa, is a serious problem in some regions of North America, not yet reported in Brazil. In this study, a survey of potential sharpshooter (Hemiptera, Cicadellidae, Cicadellinae) and spittlebug (Hemiptera, Cercopidae) vectors of X. fastidiosa was conducted in vineyards at the São Francisco River Valley, a major grape growing region in Brazil. Four vineyards of Vitis vinifera L. were sampled fortnightly from June/2005 to June/2007, using yellow sticky cards, each placed at two different heights (45 cm aboveground and 45 cm above the crop canopy) in 10 sampling... Tipo: Info:eu-repo/semantics/article Palavras-chave: Homalodisca spottii; Insecta; Pierce's disease; Vitis vinifera. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000200013 Locais e período de alimentação da cigarrinha vetora de Xylella fastidiosa, Bucephalogonia xanthophis (Berg) (Hemiptera: Cicadellidae), em mudas cítricas Rev. Bras. Frutic. Miranda,Marcelo Pedreira de; Viola,Denise Nunes; Marques,Rodrigo Neves; Bonani,Jean Patrick; Lopes,João Roberto Spotti. A cigarrinha Bucephalogonia xanthophis (Berg) (Hemiptera: Cicadellidae) é um importante vetor da bactéria Xylella fastidiosa, agente causal da clorose variegada dos citros. Este trabalho teve como objetivo identificar o local preferido de alimentação e o período de maior atividade alimentar desta cigarrinha em citros, no sentido de elucidar o comportamento alimentar relacionado à transmissão da bactéria. O local de alimentação foi estudado em ensaio de escolha, no qual 30 insetos adultos foram liberados em gaiolas de observação (n = 10) contendo uma muda de laranja-doce [Citrus sinensis (L.) Osbeck]. Após 1; 15; 21; 25; 39; 45 e 49 h da liberação, contaram-se os insetos na parte superior (ramos com brotações) e inferior (haste principal, até H"40 cm de... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cicadellinae; Comportamento alimentar; Clorose variegada dos citros. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452008000400013 Egg Brochosomes of Proconiini (Hemiptera: Cicadellidae, Cicadellinae) species associated with cultivation of grapevines Scientia Agricola Azevedo Filho,Wilson Sampaio de; Botton,Marcos; Paladini,Andressa; Carvalho,Gervásio Silva; Ringenberg,Rudiney; Lopes,João Roberto Spotti. Brochosomes production is considered a feature of Cicadellidae, and may represent an outstanding innovation which has played an important role in the development and diversification of this insect group. The objective of this study was to identify the species of Proconiini that produced egg brochosomes associated with grapevines in the Serra Gaúcha region of Brazil. Egg brochosome characteristics and an identification key are also discussed. The specimens were collected using yellow sticky cards in four vineyards (Vitis vinifera L.) from October 2004 to May 2006. Eight species capable of producing egg brochosomes were identified:Acrogonia citrina Marucci & Cavichioli; Homalodisca ignorata Melichar; Molomea consolida Schröder; Molomea lineiceps... Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis vinifera; Oviposition; Leafhopper; Taxonomy. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000200015 Identification of a non-host plant of Xylella fastidiosa to rear healthy sharpshooter vectors Scientia Agricola Marucci,Rosangela Cristina; Giustolin,Teresinha Augusta; Miranda,Marcelo Pedreira de; Miquelote,Helen; Almeida,Rodrigo Piacentini Paes de; Lopes,João Roberto Spotti. Rearing leafhopper (Hemiptera: Cicadellidae) vectors free of Xylella fastidiosa is a requirement for studies of various aspects of vector-pathogen interactions. The selection of a plant that allows vector development but not bacterial multiplication is desirable to produce healthy vectors. In this study, two leafhopper hosts, Vernonia condensata ('boldo') and Aloysia virgata ('lixeira') were needle inoculated with citrus and coffee strains of X. fastidiosa to evaluate if these plants support pathogen colonization. The inoculated plants did not present symptoms and the pathogen was not detected by culture and PCR tests, neither soon after inoculation (7-14 days) nor later, at 1, 4, 6 and 12 months after inoculation. To obtain healthy adults of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Vernonia condensata; Citrus variegated chlorosis; Coffee leaf scorch; Sharpshooter vectors; Rearing technique. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000400010 Host colonization differences between citrus and coffee isolates of Xylella fastidiosa in reciprocal inoculation Scientia Agricola Prado,Simone de Souza; Lopes,João Roberto Spotti; Demétrio,Clarice Garcia Borges; Borgatto,Adriano Ferreti; Almeida,Rodrigo Piacentini Paes de. Citrus variegated chlorosis (CVC) and coffee stem atrophy (CSA) are important diseases in Brazil associated with closely-related strains of Xylella fastidiosa, but little is know about host aoverlappingnd importance of citrus and coffee as inoculum sources of these strains. In this study, reciprocal-inoculation experiments were performed to determine if CVC and CSA isolates are biologically similar within citrus and coffee plants. These two hosts were mechanically inoculated with a CVC and a CSA isolate of X. fastidiosa at four concentrations ranging between10³ and 10(9) colony forming units CFU mL-1. At two, four and eight months after inoculation, the infection efficiency and bacterial populations of the isolates in each host were determined by... Tipo: Info:eu-repo/semantics/article Palavras-chave: Citrus variegated chlorosis; Coffee leaf scorch; Inoculum concentration; Bacterial population; Epidemiology. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000300005 Registros recuperados: 5 Primeira ... 1 ... Última

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