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Pierce's Disease
Research Updates

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What is Pierce's Disease?

Pierce's Disease is a bacterial infection, which is spread by bugs that feed on grapevines, particularly the "glassy winged sharpshooter." Grapevines that become infected with PD can quickly become sick and die.

glassy-winged sharpshooter

CHARACTERIZATION AND STUDIES ON THE FUNDAMENTAL MECHANISMS OF XYLELLA FASTIDIOSA TRANSMISSION TO GRAPEVINES BY THE GLASSY-WINGED SHARPSHOOTER

  • Author(s): Purcell, Alexander;
  • Abstract: Current attempts to reduce the economic impact of the glassy-winged sharpshooter, Homalodisca coagulata, (GWSS) to important crops in California have focused on GWSS or the causal pathogen, Xylella fastidiosa,(Xf), but little attention has been given to an essential step of Xf-diseases: the transmission of the pathogen by its insect vector. Xf has been causing diseases in California for a long time, but GWSS is apparently a more effective vector than other sharpshooters previously involved in California. Our objectives are to characterize Xf transmission by GWSS to grapevines, since this is a vital but understudied area of PD. Because of space limits, this report emphasizes objective #1.
  • Publication Date: Dec 2002
  • Journal: 2002 Pierce's Disease Research Symposium

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