Cooperators:

The glassy-winged sharpshooter, Homolodisca coagulata, spreads the causative agent of Pierce’s disease, the bacterium Xylella fastidiosa (Xf). Depending on whether the glassy-winged sharpshooter can establish itself in Northern California, Pierce’s disease may represent a multi-billion dollar threat to the grape and wine industry and the associated tourist trade. The symptoms of Pierce’s disease include a yellowing and gradual necrosis (scorching) of grapevine leaf edges, stunting o