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Small vineyard decisions made early in the season can create major ripple effects later in the year, and in this episode, Fritz breaks down three vineyard management tasks that are frequently skipped, delayed, or underestimated despite their outsized impact on vine health, fruit quality, and long-term vineyard performance.
Fritz focuses first on shoot thinning and explains why timing is everything. He walks through the economic and practical advantages of thinning early, including improved spray penetration, better airflow, easier hand harvesting, and even reduced pruning labor during dormancy.
He then explains why bloom and veraison sampling windows are critical for understanding nutrient status and preventing deficiencies before they become costly problems. Lastly, he tackles water stress monitoring and the common misconceptions surrounding vineyard stress.
Listen in for practical ways growers can monitor irrigation effectiveness, evaluate soil moisture, and avoid relying solely on visual assumptions about vine stress levels. Remember, better data leads to better vineyard decisions.
In this episode, you will hear:
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Early shoot thinning can improve fruit quality, airflow, spray coverage, and long-term pruning efficiency
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Delayed shoot thinning increases labor costs and creates more winter pruning wounds susceptible to trunk disease
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Tissue sampling at bloom and veraison helps growers identify nutrient deficiencies before productivity suffers
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Leaf blade sampling may provide more reliable nutrient data than petiole sampling for many nutrients
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Water stress should be monitored with both field observation and measurable soil moisture data
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Excess vigor, nutrient imbalance, weather extremes, fungal disease, and insects can all contribute to flower browning during bloom
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Resources:
Get Fritz's Shoot Thinning, Tissue Sampling, and Plant Stress resources available for podcast listeners at VirtualViticulureAcademy.com/tasks.
Have a vineyard question? Go to VineyardUndergroundPodcast.com and click the Ask Fritz button.
Episode Sponsor:
Today's episode was brought to you by SensorInsight and Clemens Technologies.
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.
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.
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.
