Homalodisca vitripennis

Glassy-winged Sharpshooter

Homalodisca vitripennis, Sharpshooter, Cicadellinae



Family: Cicadellidae

Subfamily: Cicadellinae

Length: 11-13 mm


Homalodisca vitripennis is eastern North America's most serious pest of grape. In the 1990s the species was accidentally introduced into California, where it quickly reached pest status on grape, oleander, and almond.

This attractive sharpshooter is a vector of the bacterium that causes Pierce's Disease in grape. As the bacterium grows, it causes formation of gums that block vessels and thus restrict the flow of xylem. The plant declines in vigor because of reduced flow of nutrients and water to the cells (Lauziére and Sétamou, 2010).

In this species females are significantly bigger than males. Adult females also live longer than the males. Lauziére and Sétamou noted that unmated females have the longest lives of any Homalodisca vitripennis; "mating reduced adult female longevity by 1.6 fold."


American Insects site