Incidence of Dilobopterus costalimai Young and Acrogonia citrina Marucci Cavichioli, in citrus orchards in Northwestern Parana/Incidencia de Dilobopterus costalimai Young e Acrogonia citrina Marucci Cavichioli, em pomares citricos no noroeste paranaense

• Published in: Acta scientiarum. Agronomy 2008-07, Vol.30 (3), p.321
• Main Authors: Goncalves, Aline Maria Orbolato, Molina, Rubia de Oliveira, Nunes, William Mario de Carvalho, Zanutto, Carlos Alexandre
• Format: Article
• Language: Portuguese
• ISSN: 1679-9275

The sharpshooters of the families Cicadellidae and Cercopidae are vectors of Xylella fastidiosa (Wells), which causes citrus variegated chlorosis. This disease causes severe damage to the Parana citrus industry, and it has been studied in Brazil since 1987, when it was discovered for the first time in the area of Colina, SP. The vectors transmit X. fastidiosa when they feed on the xylem sap, where the bacteria settles, obstructing the passage of the sap. This work had the objective of evaluating the occurrence of the vector sharpshooter Dilobopterus costalimai and Acrogonia citrina in a commercial citrus orchard during the period between July 2004 and August 2006. The experiment was accomplished in the Laranjeiras I farm, in the city of Nova Esperanca, northwestern Parana. The collections were undertaken monthly, and yellow stick traps (Biocontrole®) was used as a sampling method in Folha murcha, Valencia, Pera and Natal oranges trees [Citrus sinensis (L.) Osbeck]. In Pera and Valencia trees, the most often captured sharpshooter was Dilobopterus costalimai. The months of higher occurrence of these species were between December and May of each year. Key words: Cicadellidae, Citrus sinensis, Xylella fastidiosa, citrus variegated chlorosis. As cigarrinhas das familias Cicadellidae e Cercopidae sao vetores da bacteria Xylella fastidiosa Wells, causadora da Clorose variegada dos citros. Esta doenca traz serios prejuizos a lavoura de citros no Noroeste Paranaense, e e estudada no Brasil desde 1987, quando foi descoberta pela primeira vez na regiao de Colina, Sao Paulo. Os vetores transmitem a X. fastidiosa quando se alimentam sugando a seiva do xilema, local onde a bacteria se instala, obstruindo a passagem da seiva. Este trabalho teve o objetivo de avaliar a ocorrencia das cigarrinhas vetoras Dilobopterus costalimai e Acrogonia citrina em pomar comercial de citros. O experimento foi realizado no sitio "Laranjeiras I", municipio de Nova Esperanca, regiao noroeste do Parana, no periodo de julho de 2004 a agosto de 2006. Foram feitas amostragens mensais, por meio de armadilhas adesivas amarelas (Biocontrole®), nas variedades de laranjeiras [Citrus sinensis (L.) Osbeck] Folha Murcha, Valencia, Pera e Natal. Nas variedades Pera e Valencia, a cigarrinha mais capturada foi Dilobopterus costalimai. Os meses de maior ocorrencia das especies foram entre dezembro e maio de cada ano. Palavras-chave: Cicadellidae, Citrus sinensis, Xylella fastidiosa, clorose variegada dos c