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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

Redescription of Gonatocerus atriclavus Girault (Hymenoptera : Mymaridae), with notes on other egg parasitoids of sharpshooters (Homoptera : Cicadellidae : Proconiini) in northeastern Mexico

  • Author(s): Bezark, L.; Morgan, David; Triapitsyn, Serguei;
  • Abstract: The mymarid wasp Gonatocerus atriclavus Girault, NEW STATUS, described originally from Trinidad as a variety of G. triguttatus Girault, is redescribed and illustrated based on specimens reared from an egg mass of the sharpshooter Oncometopia clarior (Walker), collected in Ciudad Victoria, Tamaulipas, Mexico. This is the first known host record for this parasitoid species. Proconiine leafhopper host associations are also reported for three other economically important Gonatocerus species from the ater species group in North America: G. ashmeadi Girault, G. morrilli (Howard), and G. triguttatus Girault.
  • Publication Date: Jan 2002
  • Journal: Pan-Pacific Entomologist

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