news and research about Pierce's Disease

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.

Low temperature storage combined with sulfur dioxide slow release pads for quarantine control of omnivorous leafroller platynota stultana (lepidoptera : tortricidae)

  • Author(s): Yokoyama, V.; Miller, G.; Crisosto, C.;
  • Abstract: Low temperature storage combined with sulfur dioxide slow release pads caused 100% mortality of omnivorous leafroller, Platynota stultana Walshingham, 2nd instar (the least susceptible stage to low temperature storage) after 3 wk of exposure in table grapes, Vitis vinifera L. Temperatures in packed grape clusters decreased from ambient to 2 degrees C within approximate to 2 d after placement in storage. Sulfur dioxide concentrations in the grape clusters ranged between 0.2 and 1.0 ppm during the to 6-wk storage period The combination treatment incorporates existing packinghouse facilities and has potential to be used as an alternative to chemical fumigants such as methyl bromide to control pests of regulatory concern in exported table grapes.
  • Publication Date: Feb 1999
  • Journal: Journal Of Economic Entomology
  • Direct Link: http://scholar.google.com/scholar?hl=en&lr=&ie=...