| [population fluctuation of sharpshooters vectors of xylella fastidiosa wells et al. in commercial citrus groves in northwestern paraná state]. | the citrus variegated chlorosis (cvc), an important disease of citrus in brazil, is caused by the bacterium xylella fastidiosa wells et al. and transmitted by xylem-feeding sharpshooters (hemiptera: cicadellidae). this study evaluated the fluctuation of populations of species of sharpshooters belonging to the tribes cicadellini and proconiini, from subfamily cicadelinae, in a commercial sweet orange [citrus sinensis (l.) osb.] grove, located in the northwest region of paraná state, brazil, in fo ... | 2007 | 17607459 |
| [natural infectivity of xylella fastidiosa wells et al. in sharpshooters (hemiptera: cicadellidae) from coffee plantations of parana, brazil]. | xylella fastidiosa wells et al., a gram-negative and xylem limited bacterium, causes significative economic on several crops, such as the leaf scorch in coffee. it is transmitted by xylem feeding insects and four sharpshooters species have been reported as vectors of x. fastidiosa in coffee. the objective of this study was to determine the natural infectivity of x. fastidiosa in five species of sharpshooters from coffee trees: acrogonia citrina marucci & cavichioli, bucephalogonia xanthophis (be ... | 2007 | 17607462 |