Meet Your 2025-2026 ASEV Board Leadership

We’re excited to introduce the leadership team guiding ASEV through the coming year, led by President Dr. James Osborne from Oregon State University.

Experienced Leadership at the Helm

James Osborne brings over two decades of ASEV involvement to the presidency. A member since 2001, he’s served as Director (2019-2022), Secretary-Treasurer (2022-2023), Second Vice President (2023-2024) and First Vice President (2024-2025) giving him deep insight into both our organization and industry needs. His research in wine chemistry, sensory evaluation, and fermentation microbiology directly address challenges many members face daily.

“ASEV continues to play a vital role in advancing the science of enology and viticulture through research dissemination, professional development, and fostering collaboration across our global community,” says Dr. Osborne.

Your Leadership Team

Supporting President Osborne:

• Kristen Barnhisel (First Vice President) – Winemaker, White Wine at J. Lohr Vineyards & Wines, bringing commercial winemaking perspective
• Federico Casassa (Second Vice President) – California Polytechnic State University, San Luis Obispo, researcher and three-time AJEV Best Paper winner
• Lise Asimont (Secretary-Treasurer) – Foley Family Wines and Dot Wines, Viticulturist and winemaker
• Markus Keller (Science Editor) – Washington State University, Prosser, viticulture expert continuing AJEV’s excellence
• Hans Walter-Peterson (Technical Program Director) – Cornell University, New York, Extension specialist shaping our educational programs

Directors: Leticia Chacón-Rodríguez (University of California, Davis), Bob Coleman (Treasury Wine Estates, California), *Alec Levin (Oregon State University, Central Point), *Caroline Merrell (Jackson Family Wines, California), Elizabeth Tomasino (Oregon State University, Corvallis), and *Aude Watrelot (Iowa State University, Ames).

This board’s diverse expertise—spanning from California to New York, covering research, extension, and commercial production—ensures ASEV serves all corners of our membership. Whether you’re publishing research, solving winemaking challenges, managing vineyard issues, or starting your career, you’ll find representation in this leadership team.

*newly appointed directors