
Orchard research, translated for the field.
The gist
Growing the Valley is a research-driven orchard show from UC Agriculture and Natural Resources. Its episodes connect growers with farm advisors and researchers working on pistachios, almonds, walnuts, irrigation, soil amendments, climate pressure, and weed management.
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About Growing the Valley
Growing the Valley is a field-facing agricultural science show centered on orchard crops in California. It comes from UC Agriculture and Natural Resources, and its working style is direct: start with a crop problem, ask what the evidence says, and keep track of what the evidence does not yet prove. The show spends real time inside the mechanics of orchard production. Pistachio episodes examine internal kernel discoloration, polyphenol deposition, pollen parent effects, cultivar differences, and the limits of current understanding. Almond episodes move between irrigation timing, carbohydrate reserves, canopy development, hull and shell amendments, potassium cycling, and soil microbial responses. Walnut episodes focus on dormancy, low-chill winters, and rest-breaking agents. Weed episodes consider Johnsongrass, bindweed, climate change, drought, CO2, precipitation shifts, and the economics of control. Water outlook conversations frame groundwater, surface water, rain, soil moisture, recycled water, and recharge as parts of a grower water portfolio. The pace is conversational, but the vocabulary is not simplified past usefulness. Guests are allowed to explain trial design, sampling limits, year effects, genotype-by-environment interactions, and why one season of data rarely settles a question. That makes the show especially useful for people who work near the decision point: farm advisors, growers, crop consultants, researchers, and orchard managers comparing options under imperfect conditions. It is not a general gardening show. It is a practical research bridge for almonds, pistachios, walnuts, prunes, and related orchard systems. The strongest episodes turn narrow questions into broader management thinking, such as how soil water from winter supports early canopy growth, why microbial diversity matters under organic amendments, or how climate pressure may extend weed growth windows. The show's value is its restraint. It reports useful findings, names uncertainty clearly, and keeps the grower problem in view.
Made for: For California orchard growers, farm advisors, crop consultants, researchers, and agricultural students who want detailed production research tied to real management decisions. It best suits listeners comfortable with technical crop, soil, irrigation, and pest-management vocabulary.
What sets it apart: The show pairs farm advisor field knowledge with active research conversations, often tracing a grower question through experiments, results, and remaining uncertainty. Its focus is unusually specific to orchard systems and California production realities.
In their own words
This is a podcast that goes over new research and basic information about growing orchard crops in the Central Valley of California
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Episodes
- 1
The effect of pollen on pistachio fruit and polyphenol deposition
Hidden gemGrowing the Valley examines Julia Marino's experiments on whether pistachio pollen parents affect polyphenol deposition, also called internal kernel discoloration.
Apr 15, 2026·21m·1 clip - 2
2026: Earlier Almond Irrigation Start Revisited
Apr 8, 2026·31m - 3
Encore: Earlier Irrigation Start in Almond
Hidden gemDr.
Apr 6, 2026·51m·4 clips - 4
Polyphenol deposition in pistachios
Hidden gemGrowing the Valley's "Polyphenol deposition in pistachios" follows UC Davis researchers Min Min Wang and Georgia Drakakaki as they trace internal kernel discoloration, or IKD, in pistachios.
Apr 1, 2026·32m·2 clips - 5
Climate Change Part 4: Weeds with Lynn Sosnoskie
Hidden gemLuke Melliron and Phoebe Gordon host Lynn Sosnoskie, a Cornell weed ecology and management professor who spent five years with Brad Hansen at UC Davis, for a climate-change episode about weeds.
Mar 26, 2026·25m·2 clips - 6
The benefits of applying almond hulls and shells as mulch in orchards
Hidden gemAlmond hulls and shells can return roughly 30 to 50 pounds of potassium per acre for every ton applied, and Ellie Andrews says processors sometimes deliver the material for free when they need to clear space.
Mar 18, 2026·39m·3 clips - 7
Red Leaf Blotch (2026)
Mar 11, 2026·26m - 8
Boron fertilization of olives
Mar 4, 2026·14m - 9
Pistachio hull split - how does it happen and why does it change across years?
Feb 25, 2026·26m - 10
Leslie Holland on Botryosphaeria in Almonds
Feb 18, 2026·19m - 11
Pistachio pollination biology and artificial pollination
Feb 11, 2026·19m - 12
Water use in cover cropped orchards with Kosana Suvocarev
Feb 4, 2026·21m - 13
2026 Water Outlook with San Sandovol Solis
Jan 28, 2026·19m - 14
Self-Fertile Nonpareil: Sierra Gold (2025)
Sep 28, 2025·26m - 15
Self-Fertile Nonpareil: Burchell (2025)
Sep 28, 2025·15m - 16
Walnut Mold (2025)
Sep 27, 2025·25m - 17
In a Water Scarce Future, How Should we Design Almond Orchards?
Sep 4, 2025·13m - 18
Pulling Past Almond Irrigation Lessons Forward at the Nickels Soil Lab
Sep 3, 2025·25m - 19
Almond Environmental Bud Failure / Monterey Leafing Failure (2025)
Aug 28, 2025·35m - 20
Almond Non-Infectious Bud Failure
Aug 27, 2025·22m - 21
What is regenerative agriculture?
Aug 25, 2025·38m - 22
Walnut scale with Elizabeth Fichtner
Aug 20, 2025·14m - 23
Prunes: Fruit Growth through Postharvest
Aug 17, 2025·28m - 24
Prunes: From Buds through Fruit Thinning
Aug 17, 2025·49m - 25
Oak Root Fungus with Roger Duncan (2025)
Aug 11, 2025·28m - 26
Warm Season Phytophthora in Almond with Jim Adaskaveg (2025)
Aug 4, 2025·46m - 27
How do pistachio shells split?
Jul 14, 2025·22m - 28
Managing Johnsongrass in Orchards with Ryan Hill (2025)
Luke Miller interviews Ryan Hill, a new UC Cooperative Extension weed science advisor, about his background and program focusing on weed management in orchards.
Jun 22, 2025·27m - 29
New Walnut Rootstocks (2025)
Jun 10, 2025·18m - 30
Leaffooted Plant Bug & Stink Bugs Part 2: Integrated Management (2025)
Jun 4, 2025·30m - 31
Leaffooted Plant Bug & Stink Bugs Part I: Phenology and Monitoring (2025)
May 27, 2025·33m - 32
Gophers, Ground Squirrels, Voles, Roof Rats, and Deer Mice… Oh My! (2025)
Apr 25, 2025·1h 21m - 33
An Earlier Start to Irrigation in Almond (2025)
Apr 18, 2025·50m - 34
Tree Destroyer: Cytospora in Prune (2025)
Apr 7, 2025·33m - 35
The effects of wildfire smoke on nut crops
Mar 4, 2025·29m - 36
Walnut rest-breaking agents with Katherine Jarvis-Shean
Katherine Jarvis-Shean discusses her research on walnut dormancy and rest-breaking agents, sharing results from a trial that has moved into production.
Feb 19, 2025·35m - 37
Nonstructural carbohydrates, dormancy, and bloom of tree nuts
Feb 12, 2025·47m - 38
2025 water outlook with Sam Sandovol Solis
Hidden gemSam Sandovol Solis discusses the 2025 water outlook for California, analyzing past predictions and current conditions.
Feb 7, 2025·27m·1 clip - 39
Tree nut production outside of the United States
Jan 29, 2025·1h 15m - 40
The Future of Irrigation with Tom Devol (2024)
Tom Devol discusses the fundamentals of irrigation, focusing on distribution uniformity and its impact on orchard efficiency.
Dec 28, 2024·29m - 41
Tree Destroyer: Phellinus in Prunes (2024)
Dec 16, 2024·30m - 42
Encore: avocado orchard recovery after wildfire with Ben Faber
Nov 26, 2024·17m - 43
Walnut Freeze: Remaining Vigilant
Nov 18, 2024·22m - 44
Carpophilus truncatus update with Jhalendra Rijal
Jhalendra Rijal provides an update on the invasive Carpophilus truncatus beetle in California almond and pistachio orchards, discussing its origin, spread, and recent research findings.
Nov 12, 2024·27m - 45
Almond Variety Trials 10 Years In
Oct 28, 2024·39m - 46
Nitrogen uptake of Golden Hills and Lost Hills
Oct 15, 2024·12m - 47
The walnut variety trial and the walnut improvement program
Oct 10, 2024·55m - 48
Encore: Potassium fertilization with Phoebe Gordon
Sep 24, 2024·15m - 49
Isaya Kisekka on passive plant water status measurement devices
Sep 17, 2024·27m