Adult glassy-winged sharpshooter, Homalodisca vitripennis, on grape leaf.

The glassy-winged sharpshooter is the culprit behind the spread of Pierce's disease among grapevines. The insect infects the plant with the bacterium <i>Xylella fastidiosa</I> when it feeds on the sap from the xylem tissue of a vine. Credit: Reyes Garcia III, USDA Agricultural Research Service, Bugwood.org
Credit: Reyes Garcia III, USDA Agricultural Research Service, Bugwood.org