Spring 2026 Newsletter

SPRING 2026

THE ROOT annual newsletter

THE ROOT

Welcome Dear Friends and Partners, Welcome to our annual newsletter. As we move through another productive season at Sunridge Nurseries, I want to take a moment to thank our customers, partners, and team members for your continued trust and collaboration. Our commitment to advancing the nursery industry remains at the core of everything we do through innovation, research, and a strong focus on quality plant material.

In this edition, we are excited to share several updates that reflect both our progress and our people. You’ll find an overview of plans for our new laboratory and research facility, a step forward in strengthening our diagnostic and scientific capabilities to better serve the industry. We also highlight our continued investment in technology, including the growing role of thermal imaging in improving plant health monitoring and operational precision.

Equally important are the people who make this work possible. This issue celebrates the Stoller family scholarship recipients, introduces new employee experts who have joined our team, and honors longtenured team members whose dedication has helped shape Sunridge into what it is today.

Each of these stories reflects the same guiding principle: a longterm commitment to supporting growers and advancing the agricultural industry we are proud to be part of. Thank you for being part of that journey with us.

Rick Burnes, President

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Contents 01 02 03 04 05 06 07 08 09 10 11 12 13 14

Sales Contact Information

Welcome Note Table of Contents / Sales Contact Info

New Lab and Research Facility

Andrew Jones VP of Sales - Wine Grapes 805.234.4920 andrew@sridge.net

Dustin Hooper VP of Sales - Table Grapes 661.301.7399 dustin@sridge.net

New Lab and Research Facility Thermal Imaging Technology

Annie Steimle Regional Sales Manager CA North Coast 707.974.2642 annie@sridge.net

Cuyama CIMIS Station Variety Highlight - Pineau d’Aunis

Variety Highlight - Grolleau Noir Stoller Family Scholarship Stoller Family Scholarship Sunridge Welcomes Dr. Tefera Mekuria & Beau Bryson Sunridge Welcomes Juan Ochoa & Pedro Trigueros Celebrating Employee Anniversaries Celebrating Employee Anniversaries

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Dave Haggmark Regional Sales Manager CA Central Coast 805.391.0905 dave@sridge.net

Nicholas Podsakoff Regional Sales Manager CA Northern Interior 808.333.9394 nicholas@sridge.net

Sebastian Traviesa Regional Sales Manager Pacific Northwest, Eastern States, Baja CA 707.975.3646 sebastian@sridge.net

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Advancing Plant Health: Sunridge Expands Scientific Excellence and Research Capabilities Plans for our new accredited lab and future research facility At the start of this season, Sunridge Nurseries proudly announced that our laboratory achieved accreditation in Biological Testing through the American Association for Laboratory Accreditation (A2LA), the largest and most widely recognized accrediting body for testing laboratories in the United States. This accomplishment marked a significant milestone for our organization and reinforces our ongoing commitment to quality, innovation, and scientific excellence.

Our ring-tested, ISO-certified plant pathology laboratory operates at the highest industry standards, utilizing advanced diagnostic technologies to ensure the health and integrity of our plant material. Through the use of QPCR-based virus detection and other cutting-edge methodologies including PCR, RT-PCR, and TaqMan analysis, our lab is equipped to accurately identify a wide range of plant pathogens. These include viruses, fungi, and bacteria across various grapevine tissues, enabling us to maintain the highest level of cleanliness and ensure our mother blocks meet rigorous health standards.

Looking ahead, Sunridge Nurseries is actively planning the development of an on-site research facility that will further expand our capabilities. This facility will complement our existing plant pathology program while creating new and improved opportunities for further collaboration with leading researchers and institutions focused on plant health and disease prevention. Our team is excited to continue working alongside respected experts such as Dr. Philippe Rolshausen from University of California, Riverside, Dr. Luis Diaz Garcia and Dr. Akif Eskalen from University of California, Davis, and Christopher Wallis, Research Plant Pathologist at the United States Department of Agriculture Agricultural Research Service.

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These collaborations are focused on advancing research in areas such as new rootstock and varietal breeding for improved disease and pest resistance, as well as the development and application of biocontrol agents. Beneficial microorganisms including Trichoderma and Bacillus subtilis play an increasingly important role in protecting plant health, supporting the viability of cuttings and dormant material during cold storage, and enhancing growth performance in both greenhouse and field nursery environments.

Sunridge Nurseries is especially proud of the exceptional team driving these efforts forward. This includes Lab Director, Dr. Tefera Mekuria, Vice President of Operations Dr. Adam Lovgren, and Horticulturist and Agronomist Linsi Luckett.

Tefera brings decades of global plant pathology expertise with his Ph.D. in Plant Pathology (Plant Virology), advanced training in horticulture, biotechnology and postdoctoral research at Washington State University focused on grapevines and tree fruit along with extensive contributions to scientific literature and industry forums. Linsi complements this expertise with a strong academic and applied background holding her master’s degree in Traditional Biology with an emphasis in Plant Pathology. Her strong laboratory and field experience, supported by her background as a licensed PCA, provides valuable insight into realworld grapevine disease and pest management.

Adam’s expertise in data analysis, supported by his Ph.D. in Agricultural Economics and Econometrics as well as his leadership role as Research Chair of the Grapevine Rootstock Improvement Commission strengthens our data-driven approach. This team truly provides a strong strategic advantage as we continue to innovate and grow.

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A New Lens on Field Performance New thermal imaging technology to enhance our field operations At Sunridge Nurseries, innovation continues to play a key role in how we refine our growing practices and deliver the highest quality vines. One of the latest tools enhancing our field operations is thermal imaging technology, providing our team with a new level of visibility into irrigation performance across our blocks. By using thermal imaging, we are able to monitor distribution uniformity with precision, allowing us to track not only the movement of water, but also fertilizers and plant protection materials applied through our irrigation systems. This real-time insight helps ensure that inputs are being delivered evenly and effectively throughout the field.

Many of our vines are grown directly on the ground, limiting access to rows during much of the growing season. As a result, irrigation issues such as leaks or clogged emitters could go undetected until visible signs of plant stress appeared. Thermal imaging has transformed this process by allowing us to identify irregularities early, pinpointing areas that are too dry or receiving excess water before they impact vine health.

With this technology, our team can respond quickly, making timely adjustments that improve efficiency, conserve resources, and support overall crop performance. It’s another example of how we are leveraging innovation to strengthen our commitment to quality from the ground up.

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Cuyama’s New Irrigation Advantage Supporting smarter irrigation with new CIMIS station We’re proud to share that the CIMIS station at Cuyama Ranch is now fully operational, marking a meaningful step forward in advancing water management and sustainability in the Cuyama Valley.

Last year, Sunridge generously donated land at our Cuyama Ranch to support the installation of this station and continues to oversee maintenance of the six-acre site. This commitment reflects a shared investment in providing valuable, long-term resources to the region’s agricultural community.

The new station enhances our ability to monitor and manage irrigation practices by delivering accurate, real-time weather data. As part of the CIMIS network, the station collects key environmental metrics used to calculate evapotranspiration (ET), helping growers make more informed irrigation decisions. This leads to more efficient water use, improved crop performance, and stronger stewardship of limited resources.

In a drought-impacted region like the Cuyama Valley, access to reliable, localized data is critical. The station plays a central role in supporting water conservation efforts while equipping growers with the tools they need to farm more sustainably.

Data from the station is publicly available through the CIMIS network, allowing growers, researchers, and industry professionals to access insights that support better decision-making across the valley.

We’re excited to see the positive impact this station will have and remain committed to supporting innovation and sustainability in agriculture.

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Distinct Expressions from the Loire Exploring lesser-known varieties Pineau d’Aunis & Grolleau Noir

Pineau d’Aunis A Spicy Legacy With origins tracing back to the Middle Ages, Pineau d’Aunis takes its name from the Prieuré d’Aunis, a monastery situated between Saumur and Champigny. This dark-skinned variety has long played a role in the Loire’s winemaking tradition, particularly in rosé wines where it contributes a signature peppery spice.

Viticulture In the vineyard, Pineau d’Aunis presents a thoughtful challenge. It is a mid-vigor variety with sensitivity to sunburn, and its compact clusters can make it susceptible to bunch rot and botrytis. With a late bud break and a maturity timeline similar to Cabernet Franc, careful management is key to achieving balanced results.

In the glass, Pineau d’Aunis is anything but ordinary. It delivers a striking aromatic profile, layered with white and black pepper notes alongside vibrant red fruit such as strawberries, black cherries, and even hints of watermelon. The result is a wine that is both rustic and expressive, delivering a refreshing break from more traditional styles while inspiring a sense of creativity in every pour.

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Grolleau Noir Vibrancy and Versatility Grolleau Noir, believed to be related to the ancient Gouais Blanc, derives its name from the French word grolle, meaning “crow”, a nod to the grape’s deep, dark color. Today, it stands as one of the Loire Valley’s most widely planted red varieties, known for its versatility across sparkling, rosé, and still wines.

Viticulture In the vineyard, Grolleau Noir is notably vigorous and capable of producing consistently high yields, even following spring frost events. It is an early riser, with budbreak occurring about a week before Cabernet Franc, and it reaches maturity slightly ahead as well. While hardy in many respects, its canes can be sensitive to strong winds, requiring thoughtful site selection and management.

Despite its dark appearance, Grolleau Noir produces wines with a lighter structure due to its thin skins and naturally lower tannin levels. When carefully managed, particularly through yield control, it reveals a lively and refreshing profile. Bright acidity carries notes of strawberry, raspberry, cherry, and citrus, often complemented by delicate floral tones and a playful hint of red candy.

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The Stoller Family Scholarship Congratulations to our 2025/2026 scholarship recipients The Sunridge Family Scholarship, established in 2023, reflects a long-standing vision of Co-founder Terrie Stoller to give back to the families of our dedicated employees, those who play an essential role in the continued success and growth of our company. This scholarship was created not only to support higher education, but to recognize the hard work, determination, and bright futures of the next generation.

Each year, we are honored to celebrate a group of outstanding students who are pursuing their unique educational paths and aspirations. The photos featured here highlight the 2025–2026 scholarship recipients.

From diverse academic interests to personal achievements, these students embody the values that define the Sunridge community.

We are proud to support their journeys and look forward to seeing all they will accomplish in the years ahead.

Aida Tefera Asamenew

Tyler Burnes

UCLA Psychobiology

Grand Canyon University Aerospace Engineering

Diego Excontitta

Garrett Haggmark

Tristan Kempton

CSU Bakersfield Electrical Engineering

Seattle University Psychology

University of Arizona Biology - Medicine

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The Stoller Family Scholarship Congratulations to our 2025/2026 scholarship recipients

Ubertino Leon Jr

Kiana Lovgren

Valeria Maldonado

CSU, Bakersfield Electrical Engineering

UC Berkeley Environmental Economics and Policy

CSU, Bakersfield Criminal Justice

Karina Martinez

Lizbeth Moreno

CSU, Bakersfield Psychology

CSU, Bakersfield Liberal Studies

Justine Morgan

Janie Rangel

Leonardo Villanueva

Angeles College Nursing

Bakersfield College Radiology Technician

CSU, Bakersfield Agricultural Science

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SUNRIDGE WELCOMES our newest experts Tefera Mekuria, PhD

Lab Director Dr. Tefera Mekuria joined Sunridge in August 2025 as Director of the laboratory, where he leads efforts to expand plant pathogen diagnostics across a wide range of crops.

Born and raised in Ethiopia, Tefera developed an early passion for agriculture and began his career with the Ethiopian Institute of Agricultural Research after earning his BSc in Plant Sciences. He later completed his MSc in Horticulture in India and contributed to Ethiopia’s national potato improvement program before advancing his training in biotechnology in Germany.

He earned his PhD in Plant Pathology (Plant Virology) from Oklahoma State University in 2007, followed by postdoctoral research at Washington State University focused on grapevines and tree fruit. Prior to joining Sunridge, he held key roles at Agri-Analysis and Vintage Nurseries, where he established a nationally and internationally recognized plant diagnostics laboratory.

Tefera shares, “Being part of a team dedicated to innovation and quality, while continuously improving our diagnostics, has been a truly rewarding experience.”

Outside of work, he enjoys community service, traveling, pickleball, and staying active.

Beau Bryson Lab Supervisor Beau Bryson joined Sunridge Nurseries in August 2025, bringing nearly a decade of hands-on lab experience. As Lab Supervisor for the Plant Pathology Lab, he oversees daily operations, including qPCR analysis, sample preparation, quality control, inventory management, and training seasonal staff all while driving continuous improvements in lab efficiency and performance.

Beau previously spent five years at a local soil and tissue testing lab while studying plant science at Bakersfield College. A Bakersfield native, he brings a strong foundation in agricultural science and laboratory practices.

Beau shares, “Sunridge has been incredibly welcoming, and the team’s long tenure really speaks to the company’s strong culture and commitment to its people.”

Outside of work, he enjoys jiu-jitsu, mountain biking, dirt biking, and yoga.

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SUNRIDGE WELCOMES our newest experts Pedro Trigueros Assistant Agronomist Pedro Trigueros joined Sunridge Nurseries in June 2025 as an Assistant Agronomist, supporting crop health and performance alongside the Senior Agronomist. Notably, Pedro began his journey with Sunridge as the company’s first horticulture intern, gaining hands-on experience that helped shape his path into a full-time role.

In his current position, Pedro assists with pest and disease scouting, irrigation and fertigation programs, and field data analysis to help improve yield, efficiency, and sustainability. His strong attention to detail and proactive approach contribute to maintaining the high-quality standards Sunridge is known for.

A Bakersfield native, Pedro holds a degree in Biology from CSU Bakersfield and brings a well-rounded blend of practical agricultural experience and academic knowledge to the team.

Pedro shares, “My onboarding at Sunridge was a smooth transition, and the team has been incredibly welcoming. I enjoy that no two days are the same there’s always something new to learn.”

Outside of work, he enjoys reading, running, and attending concerts.

Juan Ochoa Lab Technician Juan Ochoa joined Sunridge Nurseries in August 2025, bringing several years of laboratory and operations experience. As a Lab Technician, he plays a key role in daily lab functions and supports the Quality Control team during the off-season, assisting with vine inspections from dormancy through shipping to ensure plants meet Sunridge’s high standards.

Prior to Sunridge, Juan gained nearly four years of lab experience and held roles at Grimmway Farms in both inventory and microbiology within Food Safety and Quality Assurance. He studied at Taft College and CSU Bakersfield and is a proud Bakersfield native.

Juan shares, “I’m impressed by the strong sense of community and the many long-standing families here, it really speaks to the company’s values.”

Outside of work, he enjoys attending live concerts across a wide range of music genres.

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Years of Dedication. Countless Contributions.

Sunridge is honored to recognize the team members whose years of service have helped define our company’s legacy. Their experience, consistency, and commitment have played a vital role in our growth and continued success. We are very thankful for their lasting contributions and dedication.

45 YEARS

Eloy Rodriguez

Roberto Rodriguez

Leonardo Villanueva

30 YEARS

Israel Maldonado

Efrain Cisneros

Abel Martinez

Joaquin Perez

Leo Villanueva

20 YEARS

15 YEARS

Jose Gallardo

Victor Montelongo

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10 YEARS

Rodolpho Benavides

Homero Perez

Victor Rodriguez

Sebastian Traviesa

Christy Villanueva

Annie Steimle

5 YEARS

Fernando Chavolla

Rigoberto Garcia

Dustin Hooper

Nicholas Podsakoff

Dave Haggmark

Blanca Pantoja

Benjamin Robb

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Juana Santoya

Sunridge Nurseries | 441 Vineland Road Bakersfield CA 93307 (661) 363-8463 | sunridgenurseries.com