Browsing Agronomía by Author "Aguilar Alvarez, Estela Yamileth"

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    • Confirmation of Xylella fastidiosa infecting grapes (Vitis vinifera) in Costa Rica 

      Aguilar Alvarez, Estela Yamileth; Moreira Carmona, Lisela; Rivera Herrero, Carmen (2008-11)
      In 2003, symptoms of Pierce Disease (PD) were observed in two vineyards established in two different localities in San Jose province (Santa Ana and La Uruca) and in La Garita, Alajuela province. Twenty four symptomatic ...

    • First Report of Xylella fastidiosa Infecting Citrus in Costa Rica 

      Aguilar Alvarez, Estela Yamileth; Villalobos Muller, William; Moreira Carmona, Lisela; Rodríguez Solís, Carlos Mario; Kitajima, Elliot Watanabe; Rivera Herrero, Carmen (2005-06)
      Citrus variegated chlorosis (CVC) is an important disease mainly of sweet orange (Citrus sinensis (L.) Osbeck) cultivars. It was first described in Brazil in the state of Sā Paulo in 1987 (4). The disease has spread to all ...

    • Genetic Diversity of Xylella fastidiosa Strains from Costa Rica, São Paulo, Brazil, and United States 

      Montero Astúa, Mauricio; Hartung, John; Aguilar Alvarez, Estela Yamileth; Chacón Díaz, Carlos; Li, Wenbin; Albertazzi Castro, Federico José; Rivera Herrero, Carmen (2007-10)
      The diversity of 42 Xylella fastidiosa strains from Costa Rica, São Paulo, Brazil, and the United States were analyzed using the sequence of the 16S rRNA gene by variable number of tandem repeat (VNTR) fragment analysis ...

    • Isolation and molecular characterization of Xylella fastidiosa from coffee plants in Costa Rica 

      Aguilar Alvarez, Estela Yamileth; Rodríguez Solís, Carlos Mario; Garita Salazar, Laura Cristina; Villalobos Muller, William; Moreira Carmona, Lisela; Hartung, John; Rivera Herrero, Carmen; Montero Astúa, Mauricio; Chacón Díaz, Carlos (2008-10)
      Coffee plants exhibiting a range of symptoms including mild to severe curling of leaf margins, chlorosis and deformation of leaves, stunting of plants, shortening of internodes, and dieback of branches have been reported ...