| initial genetic analysis of xylella fastidiosa in texas. | xylella fastidiosa is the causative agent of pierce's disease of grape. no published record of x. fastidiosa genetics in texas exists despite growing financial risk to the u.s. grape industry, a texas population of the glassy-winged sharpshooter insect vector (homalodisca vitripennis) now spreading in california, and evidence that the bacterium is ubiquitous to southern states. using sequences of conserved gyrb and mopb genes, we have established at least two strains in texas, grape strain and r ... | 2008 | 18172717 |
| seasonal increase of xylella fastidiosa in hemiptera collected from central texas vineyards. | yellow sticky traps were placed in six vineyards in central texas from 2003 to 2006 and in locations outside the vineyards in 2004-2006. in total, 72 collections on 55 dates were examined. xylem fluid-feeding insects were removed and identified to species and then analyzed by polymerase chain reaction to determine the presence or absence of xylella fastidiosa wells et al. of the 1318 insects removed, 13 species were found, dominated by homalodisca vitripennis (germar), clastoptera xanthocepahala ... | 2009 | 19886437 |
| detection and analysis of the bacterium, xylella fastidiosa, in glassy-winged sharpshooter, homalodisca vitripennis, populations in texas. | the glassy-winged sharpshooter, homalodisca vitripeninis germar (hemiptera: cicadellidae), is a xylophagous insect that is an endemic pest of several economically important plants in texas. h. vitripennis is the main vector of xylella fastidiosa wells (xanthomonadales: xanthomonadaceae), the bacterium that causes pierce's disease of grapevine and can travel long distances putting much of texas grape production at risk. understanding the movement of h. vitripennis populations capable of transmitt ... | 2010 | 21062210 |
| seasonal abundance and spatio-temporal distribution of dominant xylem fluid-feeding hemiptera in vineyards of central texas and surrounding habitats. | a survey of xylem fluid-feeding insects (hemiptera) exhibiting potential for transmission of xylella fastidiosa, the bacterium causing pierce's disease of grapevine, was conducted from 2004 to 2006 in the hill country grape growing region of central texas. nineteen insect species were collected from yellow sticky traps. among these, two leafhoppers and one spittlebug comprised 94.57% of the xylem specialists caught in this region. homalodisca vitripennis (germar), graphocephala versuta (say), an ... | 2008 | 18801258 |