(Wines&Vines) - After a decade of research, millions of dollars and the death of more than a few good vines, the battle against Pierce’s disease and its vector the glassy-winged sharpshooter carries on, but the end may be in sight. Once dreaded as the harbinger of a California winegrape industry apocalypse, the GWSS and PD have been effectively managed; research is now close to perfecting methods to treat PD and cultivate plants resistant to the disease.