May 19, 2026 — The Pierce’s Disease and Glassy-Winged Sharpshooter Board is investing $1.99 million in nine new research projects over the next two years to help protect vineyards and address pest and disease challenges facing grape growers. The Board is also continuing support for seven previously approved multi-year projects, with $866,277 allocated for fiscal year 2026/27.
Projects funded this year range from early-stage studies to applied research focused on PD, grapevine viruses and the insects that spread them. With the industry continuing to face financial pressure, the Board emphasized careful, targeted investments designed to deliver the greatest value to growers.
“We reviewed many strong proposals this year, but we had to be selective,” said Board Chair Trey Irwin. “We focused on funding a diverse set of projects that address the range of challenges growers are facing and will deliver the greatest value in the vineyard.”
Since 2001, the grower-funded research program has supported 320 research grants, investing $44.8 million in PD and GWSS research and $17.3 million in research on other pests and diseases.
Learn more at bit.ly/PDBoardResearch.
