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Vineyard Underground

Vineyard Underground

By: Fritz Westover
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What if you could hang out with experienced grape growers, ask them about the science of grape growing, vineyard operations, and more; then take an insight or two to improve your vineyard and ultimately the quality of the wines you produce? That's what we do each week on the Vineyard Underground. Hosted by Fritz Westover –– viticulture expert more than 20 years of experience in the vineyard industry –– every episode is an in-depth look at grape growing methods, care, and even complicated matters of fertilization and pest and disease management? The goal is to provide you with an understanding of the complicated aspects of viticulture science so that experienced and even first-time grape growers will be able to understand and implement new practices in their vineyard.2022 Art Cooking Food & Wine
Episodes
  • 089: Red Flags for Planting a Vineyard with Dr. Mark Greenspan
    Jan 20 2026
    Planting a vineyard is a major investment, and the decisions made before the first vine goes into the ground can determine long-term success or costly failure. In this episode, Fritz sits down with renowned viticulture expert Dr. Mark Greenspan to unpack the most common red flags vineyard owners and operators should watch for when planning a new planting. Drawing on more than three decades of scientific research and hands-on field experience, Dr. Greenspan explains why many vineyard problems originate long before planting day. Fritz and Dr. Greenspan also discuss the dangers of relying on assumptions or neighboring vineyard performance instead of site-specific data and professional evaluation. Listeners will learn why thorough pre-plant assessments — including soil testing, climate analysis, and thoughtful rootstock and variety selection — are essential risk management tools rather than optional steps. This episode is especially valuable for growers considering new vineyard development, replanting existing blocks, or expanding acreage. By understanding these early warning signs, listeners can make more informed decisions, avoid expensive mistakes, and set their vineyards up for sustainable productivity and profitability. In this episode, you will hear: Common red flags that signal potential vineyard failure before planting Why site-specific soil and climate data matter more than assumptions Risks of poor variety and rootstock selection The long-term cost of cutting corners during vineyard planning Practical steps to reduce risk and improve vineyard performance Follow and Review: If you enjoyed this episode, be sure to follow the podcast and leave a 5-star review on Apple Podcasts! Your support helps us reach more listeners. 💜 Click the '+' in the top right corner of Apple Podcasts to follow now. Resources: Register for Fritz's FREE live virtual pruning event, Snip Happens: Pruning Mistakes & Fixes on January 29th at noon Central, and make sure you and your team can spot, fix, and avoid pruning mistakes this season. If you're starting a vineyard or thinking about starting a vineyard, visit VirtualViticulureAcademy.com/growsmart to get Fritz's online Prospective Winegrape Grower Course to help you get your vineyard planned and planted correctly from the start. Use the code PODCAST at checkout to save $89.00 as a thank you for being a podcast listener. If you have questions about today's episode or ideas for future episodes, go to VineyardUndergroundPodcast.com and click the Ask Fritz button. Today's Guest: Mark Greenspan is a viticulture expert with 3 decades of scientific, technical, and field experience. He is a Certified Crop Advisor (CCA), Certified Professional Agronomist (CPAg), and licensed Pest Control Advisor (PCA) in California and the founder of Advanced Viticulture, a leading vineyard services company in California. Learn more about Advanced Viticulture or connect with Mark: https://advancedvit.com/ https://www.instagram.com/advanced_viticulture/ Episode Sponsor: Today's episode was brought to you by HydroGeo Environmental and Bahco Tools. Thank you to HydroGeo Environmental for sponsoring today's episode. For over 20 years, Bubba Beasley and his team have helped vineyard growers with site assessments, mapping, soil and groundwater evaluations, and optimal vineyard layouts. Using the latest technology and industry expertise, HydroGeo brings clarity to even the most complex landscapes. Visit HydroGeoEnvironmental.com and mention the Vineyard Underground podcast for a special discount on your service. Thank you to Bahco Tools for sponsoring today's episode. As innovators for more than 165 years, Bahco has introduced the most advanced tools in the world, and Bahco products are manufactured in factories across Europe. I exclusively prune with the Bahco ERGO™ Bypass Secateurs with Elastomer Coated Fixed Handle (size medium). Visit www.bahco.com/int_en to find a dealer near you to get the best pruning tools on the market, along with loppers, hedging tools, cutting blades, files, and more. Episode Credits If you like this podcast and are thinking of creating your own, consider talking to my producer, Emerald City Productions. They helped me grow and produce the podcast you are listening to right now. Find out more at https://emeraldcitypro.com. Let them know we sent you.
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    40 mins
  • 088: Pruning Q&A with Fritz Westover
    Jan 6 2026

    Pruning is one of the most influential decisions vineyard owners and operators make each season, and in this solo Q&A episode, Fritz tackles the most common — and most misunderstood — questions he hears in the field. Drawing on hands-on experience, Fritz walks listeners through the practical realities of dormant pruning, why it matters far beyond vine appearance, and how pruning choices directly impact vine balance, yield, and long-term vineyard health.

    Throughout the episode, Fritz addresses real-world concerns from growers, including how aggressive pruning should be, what mistakes show up most often in young versus mature vineyards, and how to adapt pruning strategies to site conditions and vine vigor.

    Fritz explains how pruning windows can influence bud burst and frost risk, and why "earlier is always better" isn't necessarily true. He highlights warning signs that a vineyard may be over- or under-pruned and offers guidance for adjusting course before problems compound over multiple seasons.

    This episode is particularly valuable for vineyard owners who want to move beyond rote pruning rules and better understand the "why" behind their pruning decisions. By the end, listeners will have clearer expectations for what good pruning should accomplish and how small, intentional changes can pay dividends in vine performance and fruit quality over time.

    In this episode, you will hear:

    • Pruning decisions directly influence vine balance, yield, and longevity
    • Over-pruning and under-pruning both create long-term vineyard challenges
    • Timing of pruning can affect bud break and frost exposure
    • Vine vigor should guide pruning intensity, not habits or tradition
    • Small adjustments made consistently can improve vineyard performance

    Follow and Review:

    If you enjoyed this episode, be sure to follow the podcast and leave a 5-star review on Apple Podcasts! Your support helps us reach more listeners. 💜 Click the '+' in the top right corner of Apple Podcasts to follow now.

    Resources:

    If you have questions about today's episode or ideas for future episodes, go to VineyardUndergroundPodcast.com and click the Ask Fritz button.

    Free Pruning Events:

    January 15th at 5 PM Central - Cut with Confidence, Not Consequences – Register here: https://www.virtualviticultureacademy.com/product/cut-with-confidence/

    January 29th at 12:00 PM Central - Snip Happens: Pruning Mistakes and Fixes – Register here: https://www.virtualviticultureacademy.com/product/snip-happens/

    Episode Sponsor:

    Today's episode was brought to you by HydroGeo Environmental and SensorInsight.

    Thank you to HydroGeo Environmental for sponsoring today's episode. For over 20 years, Bubba Beasley and his team have helped vineyard growers with site assessments, mapping, soil and groundwater evaluations, and optimal vineyard layouts. Using the latest technology and industry expertise, HydroGeo brings clarity to even the most complex landscapes. Visit HydroGeoEnvironmental.com and mention the Vineyard Underground podcast for a special discount on your service.

    Thank you to SensorInsight for sponsoring today's episode. SensorInsight is a leader in vineyard soil moisture and weather monitoring. SensorInsight designs state-of-the-art, remote satellite monitoring of soil moisture and weather, bringing actionable information for your vineyard operations straight to your phone, with real-time data so you can best decide when to turn on your irrigation, how long to run the system, and learn how the dynamics of soil moisture can change over a given season. Visit them today at https://sensorinsight.io. And don't forget to mention the code Underground to receive a discount on your SensorInsight solution.

    Episode Credits

    If you like this podcast and are thinking of creating your own, consider talking to my producer, Emerald City Productions. They helped me grow and produce the podcast you are listening to right now. Find out more at https://emeraldcitypro.com. Let them know we sent you.

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    32 mins
  • 087: Mothballing a Vineyard - What Growers Need to Know with Dr. Christopher Chen
    Dec 23 2025

    A topic that many growers consider but few understand is mothballing a vineyard. In this episode, Fritz covers it all with Dr. Christopher Chen, Integrated Vineyard Systems Advisor with the University of California Cooperative Extension. With economic pressures, market shifts, and operational challenges affecting vineyard owners across the industry, temporarily idling a vineyard can feel like a practical option — but it comes with important agronomic, legal, and financial considerations.

    Dr. Chen brings a research-based, boots-on-the-ground perspective to the conversation, helping listeners understand what "mothballing" actually means in a vineyard context. Rather than a simple shutdown, he explains that mothballing requires intentional planning to preserve vine health, soil integrity, and long-term viability. Real-world questions growers are asking get answered, such as when mothballing makes sense, how long a vineyard can remain idle, and what minimum maintenance is required to avoid costly problems down the line.

    Dr. Chen also highlights common mistakes growers make when they cut corners too aggressively, and how those decisions can significantly increase restart costs later. Listeners will walk away with a clearer framework for evaluating whether mothballing is the right strategy for their operation, along with guidance on how to do it responsibly if they choose that path.

    In this episode, you will hear:

    • What "mothballing" a vineyard really involves

    • Situations where mothballing may make economic sense

    • Minimum maintenance practices to protect vine health

    • Risks related to pests, disease, and vineyard infrastructure

    • How mothballing decisions impact future restart costs

    Follow and Review:

    If you enjoyed this episode, be sure to follow the podcast and leave a 5-star review on Apple Podcasts! Your support helps us reach more listeners. 💜 Click the '+' in the top right corner of Apple Podcasts to follow now.

    Resources:

    Register for Fritz's FREE live virtual pruning event, Cut with Confidence, Not Consequences, on January 15th at 5 PM Central, and make sure you and your crew are ready for a successful 2026 pruning season.

    If you have questions about today's episode or ideas for future episodes, go to VineyardUndergroundPodcast.com and click the Ask Fritz button.

    Today's Guest:

    Dr Christopher Chen is an Integrated Vineyard Systems Advisor for the University of California Cooperative Extension.

    Connect or follow Chris - https://christopherclchen.neocities.org/

    Episode Sponsor:

    Today's episode was brought to you by Clemens Technologies and SensorInsight.

    Thank you to Clemens Technologies for sponsoring today's episode. Clemens Technologies is the market leader in machinery for all elements of vineyard management. Visit https://www.clemens-online.com/us/ and provide the code UNDERGROUND to receive 5% off your order of in-stock machinery. Or reach out to Thomas Clemens directly at thomas@clemens-america.com with any questions.

    Thank you to SensorInsight for sponsoring today's episode. SensorInsight is a leader in vineyard soil moisture and weather monitoring. SensorInsight designs state-of-the-art, remote satellite monitoring of soil moisture and weather, bringing actionable information for your vineyard operations straight to your phone, with real-time data so you can best decide when to turn on your irrigation, how long to run the system, and learn how the dynamics of soil moisture can change over a given season. Visit them today at https://sensorinsight.io. And don't forget to mention the code Underground to receive a discount on your SensorInsight solution.

    Episode Credits

    If you like this podcast and are thinking of creating your own, consider talking to my producer, Emerald City Productions. They helped me grow and produce the podcast you are listening to right now. Find out more at https://emeraldcitypro.com. Let them know we sent you.

    Show More Show Less
    57 mins
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