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| 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 |
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| 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 |
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| 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 |
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