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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

ASSOCIATIVE LEARNING OF HOST-PLANT CHEMICAL STIMULI IN IMMATURE GLASSY-WINGED SHARPSHOOTERS

  • Author(s): Patt, Joseph; S?tamou, Mamoudou; Cavazos, Javier; Zamora, Orlando;
  • Abstract: Olfactory conditioning may provide the immature glassy-winged sharpshooter (GWSS) with a mechanism by which they can effectively track their host-plants in space and time. In the presence of vanilla scent, nymphs that ingested vanilla-flavored xylem fluid were significantly more attracted to a neutral visual target than were nymphs that had ingested unflavored xylem fluid. These results are consistent with our previous finding that GWSS response to visual stimuli is enhanced by exposure to host-plant odor.
  • Publication Date: Nov 2006
  • Journal: 2006 Pierce's Disease Research Symposium

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