California PD/GWSS Board logo, partnership for winegrape solutions, highlights

May 2024

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  • PD/GWSS Board Grants $2.7 Million in New Research Funding


  • PD/GWSS Board Funds Critical GWSS Survey and Inspection Activities Statewide


  • New PD/GWSS Board Newsletter Issue Now Online


  • Premier US Grape Collection Moves into Protected Greenhouse
2024 Research Funding

PD/GWSS Board Grants $2.7 Million in New Research Funding


To support cutting-edge research to find solutions to winegrape pests and diseases, the Pierce’s Disease and Glassy-Winged Sharpshooter Board recommended $2.7 million in new funding for 15 research projects over the next three years. The Board also continued funding eight previously approved multi-year projects for $685,308 for the fiscal year 2024 – 2025. The recommendation was approved by California Department of Food and Agriculture Secretary Karen Ross.


The Board has invested over $57.7 million since 2001 in research and outreach to protect vineyards, prevent the spread of pests and diseases, and deliver practical and sustainable solutions. The steadfast funding provided by the PD/GWSS winegrape grower assessment ensures that California's winegrape industry can engage leading scientists in discovering solutions for PD and other serious pests and diseases of winegrapes. Click to learn more about Board-funded research.


Surveying for the glassy-winged sharpshooter

PD/GWSS Board Funds Critical GWSS Survey and Inspection Activities Statewide


The PD/GWSS Board earmarked $850,000 as a one-time funding strategy for glassy-winged sharpshooter (GWSS) survey and inspection activities conducted by counties statewide. Without the additional funding, the Pierce’s Disease Control Program (PDCP) would have to reduce funding to the counties, decreasing vital GWSS surveying and inspections, which are essential to slow the spread of GWSS and minimize the impact of Pierce’s disease throughout California.


“The Board recognized the importance of maintaining these surveys and inspections as part of the larger statewide effort to keep PD and GWSS in check. Last year’s larger-than-expected harvest, combined with funding previously set aside for county backfill, allowed us to provide this important one-time funding,” said Randy Heinzen, PD/GWSS Board Chair.


The PDCP provides much-needed protection to the state’s valuable wine and grape industry with five core strategies: contain the spread, statewide survey and detection, rapid response, outreach, and research. The PDCP continues to face financial challenges as annual federal funding hasn’t increased since 2015 and annual state funding ceased altogether in 2011. To keep essential prevention activities in place, the Board has increased its ongoing support to PDCP over the years to support county activities including urban and nursery treatments, delimitation responses, and trapping.

PD Newsletter - spring 2024 cover

New PD/GWSS Board Newsletter Now Online


In the latest issue:



  • New Research Funding in 2024 and List of Projects (page 1)


  • Bill Introduced to Extend the Pierce’s Disease Control Program and PD/GWSS Board (page 4)


  • Winegrape Growers, Researchers, and Stakeholders Gather to Strategize About Grapevine Viruses (page 4)


  • On the Research Front (page 3)
  • Modeling Sharpshooter Feeding Behavior with a Novel 3D Approach to Insect Behavioral Visualization
  • Interaction Between the Spotted Lanternfly and Pierce’s Disease of Grapevines
  • Using a Stable, Plant-Derived, Antimicrobial Peptide to Control Pierce’s Disease
Impacts of the Pierce's Disease Control Program
FPS Grape Greenhouse Move In Video

Premier US Grape Collection Moves into Protected Greenhouse


There are now grapevines in the new industry-supported Foundation Plant Services (FPS) Greenhouse. At the beginning of March, FPS re-potted and relocated 1,308 plants, representing 654 clonal families. The PD/GWSS Board is funding the propagation, testing, and treatment of the priority grapevine selections so they can be maintained in the FPS greenhouse as a source of high-quality grapevine stock for distribution to nurseries. The greenhouse will ultimately house approximately 2,000 vines, or 250-750 selections depending on the number of vines per selection, with industry-ranked selections prioritized.

Next Meeting:

June 25, 2024

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