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

Two new species of the neotropical leafhopper genus Caldwelliola Young (Hemiptera : Cicadellidae) with a key to males


  • Author(s): McKamey, Stuart;
  • Abstract: Two new species of Caldwelliola- are described, C. sinuata from Honduras and C trilineata, from Ecuador, bringing the current total valid species in the genus to eleven. A key to males of all-species is presented. The species C bipunctata Nielson and Godoy, 1995, is placed in-synonymy under C lutea Signoret, 1855, n. syn. One species, C caucana, Young has been implicated- as a likely vector of the bacterium Xylella fastidiosa Wells, which causes the crespera disease, coffee leaf scorch, in Colombia and elsewhere, in the Neotropical Region.
  • Publication Date: Jul 2006
  • Journal: Proceedings Of The Entomological Society Of Washington