1. CDFA Home
  2. Pierce's Disease Control Program
  3. Research Updates

Pierce's Disease
Research Updates

piercesdisease.cdfa.ca.gov

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

CONTROL OF PIERCES DISEASE THROUGH DEGRADATION OF XANTHAN GUM

  • Author(s): Cooksey, Donald; Bianco, Rosina; Dumenyo, Korsi; Lee, Seung-Don; Schiller, Neal;
  • Abstract: Acinetobacter johnsonii GX123, a Xylella gum-degrading endophyte was co-inoculated with Xylella fastidiosa strain Texas in oleander plants to determine its efficacy as a biocontrol agent in preliminary experiments. Symptoms appeared in both plants inoculated with X. fastidiosa alone and plants co-inoculated with the endophyte. However, symptoms were more severe and appeared earlier in plants inoculated with X. fastidiosa than in those co-inoculated with the endophyte. A. johnsonii GX123 seems to be a promising candidate to control X. fastidiosa. Experiments using a sequential strategy of inoculating the Xylella gum-degrader endophyte prior to X. fastidiosa are ongoing and its effects on symptom expression are still under investigation.
  • Publication Date: Dec 2004
  • Journal: 2004 Pierce's Disease Research Symposium

Navigation

Actions

Researcher Login

Sponsors