Pierce's Disease
Research Updates


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

Biocontrol of disease caused by virulent strains of Xylella fastidiosa by cross protection with benign strains of Xylella fastidiosa

  • Author(s): Hopkins, DL;
  • Abstract: This invention involves the introduction of "benign" strains of X. fastidiosa into desirable plants that are normally susceptible to Pierce's disease (PD). In certain embodiments, plants are injected with the benign biocontrol strain prior to transplanting into the vineyard, or immediately after transplanting. Such inoculated plants are, typically, resistant to PD for at least about 3-4 years. Various embodiments of the subject invention also provide for "booster injections" every 3-4 years. The subject invention also provides "benign" bacterial strains suitable for control of PD and compositions comprising the aforementioned "benign" bacterial strains
  • Publication Date: Mar 2009
  • Journal: Official Gazette Of The United States Patent And Trademark Office Patents