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

December 2011 news archives

  • The sting of the vines: Scientists con Pierce's germs and their sharpshooting ...
    Santa Cruz Sentinel December 25, 2011

    The sting of the vines: Scientists con Pierces germs and their sharpshooting ... Santa Cruz Sentinel But this was just the beginning of a statewide killing spree by a new duo behind Pierces disease: the sap-sucking insect known as the glassy-winged sharpshooter and the vine-choking bacteria Xylella ...


  • Lets Talk: A Story of Interspecies Communication
    Biofortified December 13, 2011

    We have shown that not only is Ax21 present in important plant pathogens such as Xanthomonas, which infects virtually all crop plants and in a microbe that causes Pierces disease on grapes, but it is also present in a human pathogen that infects ... and more ...