Scope and Contents From the Series: Project files of various research trials conducted by the UCCE Napa County office. Materials reflect the work of multiple task forces and research projects including but not limited to efforts to research, monitor, and manage Pierce’s Disease (PD) and the spread of the Glassy-Winged Sharpshooter (GWSS) in viticulture by the UC Pierce’s Disease (PD) Task Force and the Pierce’s Disease/Glassy-Winged Sharpshooter (PD/GWWSS) Board; the ...