If weeds aren’t a top priority in your pest control program, maybe they should be. John A. Roncoroni, Emeritus UC Cooperative Extension Weed Science Farm Advisor and UCIPM affiliate advisor in Napa County discusses his specialty; weed management in California’s Coastal and Foothill premium winegrape growing regions. He covers why weeds should play a more important role in pest control programs, knowing which weeds you have on your property, fire mitigation, and the toughest weeds to control toda...
Mar 17, 2022•36 min•Ep. 128
Dr. Tarah Sullivan is Assistant Professor of Soil Microbiology at Washington State University. In this interview, Tarah discusses how the plant microbiome mirrors the human gut, the ways in which soil microorganisms can alter the bioavailability of micronutrients and metals for plants, why plants in alkaline soils can be deficient in iron when the soil is not, if cover crops can improve soil microbial communities, and what is next for her research. Tarah’s research emphasis is on linking the fun...
Mar 03, 2022•29 min•Ep. 127
Greg Pennyroyal of Wilson Creek Winery and Vineyards was looking for soil moisture systems and found that the products available in the market were all expensive, proprietary systems that did not meet the needs of small block Temecula vineyards. He partnered with Reinier van der Lee, CEO of Vinduino, to reverse engineer the technology to develop a product that would give the same results for a fraction of the cost. They have expanded this project over the last five years to collect more and more...
Feb 17, 2022•24 min•Ep. 126
There are numerous tools and technologies to improve irrigation efficiency but by looking at grower demographics, we can better predict which growers will implement best management practices. Plus, we can learn how to educate all growers to improve adoption. Nicholas Babin, Assistant Professor of Natural Resources Management and Environmental Sciences at California Polytechnic State University, conducted a two-year study to assess Paso Robles California AVA grape growers’ thoughts around climate...
Feb 03, 2022•29 min•Ep. 125
While many growers are familiar with the Western Leafhopper, they may not know as much about the Virginia Creeper Leafhopper. Houston Wilson, Assistant Cooperative Extension Specialist in the Department of Entomology at UC Riverside and Director of UC Organic Agriculture Institute has been studying the Virginia Creeper Leafhopper and potential biological controls. Leafhoppers are pierce and suck feeders. The insect removes small amounts of plant material causing a stippling effect on the leaf. T...
Jan 20, 2022•30 min•Ep. 124
Consumer demand for transparency and sustainability of their food system is leading to more and more agrochemical restrictions to address concerns for pollinators, noenicitinoids, and drift. Additionally, ESG (Environmental, Social, and Governance) investors are putting pressure on the chemical industry to improve their metrics. Pam Marrone, Founder and CEO of Marrone Bio Innovations outlines the market, status, and potential for biologicals in this excerpt from our 2020 Sustainable Ag Expo. Bri...
Jan 06, 2022•22 min•Ep. 123
Maintaining agricultural land can be a solution to climate change. Renata Brillinger, Executive Director at California Climate & Agriculture Network (CalCAN), and her team are working to incentivize sustainable practices like composting, cover crops, and solar pumps at farms. They promote four grant programs that help farmers and ranchers have a positive impact on the planet and their bottom line. The first is to prevent urban sprawl by funding easements to maintain working farmland. The sec...
Dec 16, 2021•29 min•Ep. 122
David R. Montgomery defines regenerative agriculture as leaving the land better off and more fertile as a consequence of cultivation. David studied geology at Stanford University before earning his Ph.D. in geomorphology at UC Berkeley. Today he teaches at the University of Washington where he studies the evolution of topography and how geological processes shape landscapes and influence ecological systems. In this research, he has defined three principles to build soil fertility; minimal distur...
Dec 02, 2021•22 min•Ep. 121
Imagine improving both the efficiency and safety of your team with autonomous drone vineyard spraying. That is exactly what David Goldfarb and the team at Clos de la Tech are trialing in their vine rows. Although this technology has been used in Japan for a number of years, it is new to the United States. Initially, they looked to drones as a way to scout for pests. Spraying was limited due to the small capacity of the machines. Then an advancement inspired by COVID stadium sanitation standards ...
Nov 18, 2021•21 min•Ep. 120
The first pillar of any successful IPM (Integrated Pest Management Program) is to know the pest you want to manage. Emily Symmes, Entomologist and Technical Field Manager at Suterra, addresses the basics of vine mealybug (VMB) in grapes in this expert from the 2020 Sustainable Ag Expo. VMB are phloem eaters, piercing the trunk, canes, and berry clusters and vectoring leafroll-associated viruses. In high populations, they will weaken the vines and can cause vine decline and death. Their rapid dev...
Nov 04, 2021•25 min•Ep. 119
UV lamps have been used in the medical field, food processing, and sterilization for 75 years but application on plant disease management only began in the 1990s. UV light is a natural component of sunlight. The most harmful wavelengths like UVC are screened out by our ozone layer. DNA damaging UVB does reach the surface, however, most organisms can utilize blue light to repair the damage. David Gadoury, Plant Pathologist at Cornell University, is part of a large team of international researcher...
Oct 07, 2021•27 min•Ep. 117
How can values, beliefs, and attitudes around irrigation improve water efficiency? That is exactly what a recent California Department of Water Resources (DWR) grant project aimed to discover. Grant recipient, Vineyard Team, worked with 59 growers over three years to conduct irrigation-related behavior interviews, Distribution Uniformity evaluations, and determine if continued interaction (nudges) with the grower would increase the adoption of irrigation best management practices in vineyards. E...
Sep 16, 2021•32 min•Ep. 116
Plant SAP analysis gives farmers insight into how the plant can take up and mobilize nutrients. Traditional tissue testing is usually done at the top of the plant, sampling only the youngest leaves. SAP Analysis is actually a pair of tests, comparing nutrients in young and old leaves to see what is being taken up today and how the nutrients are moved around. Test results compare levels in young and old leaves across 24 different nutrients. One important comparison is Nitrogen efficiency, so the ...
Sep 02, 2021•25 min•Ep. 115
Numerous vineyards have utilized sheep and goats for grazing but most only during the winter. Kelly Mulville was on a mission to design a vineyard for year-round grazing to restore the ecosystem with livestock. The challenge was to find a vineyard design where the animals could not eat the vines. In a partnership with Paicines Ranch in California, Kelley and the team utilized the Watson Training System which holds the cordon wire at 66 inches. The vineyard incorporated nine grape varieties and t...
Aug 19, 2021•25 min•Ep. 114
A healthy soil has hundreds of different species of microbes while a depleted one may only have one dozen. A number of common viticulture practices are not conducive to a healthy soil biology so Dave Olson of Sustainable Growing Solutions is looking at how we can improve soil quality with microbes, ultimately improving plant quality. This process can be foliar with soil inoculations over time. Microbes do not colonize all at once so it important to add them over a period of time so that some wil...
Aug 05, 2021•31 min•Ep. 113
Deficit irrigation is used in winegrape production to keep berries small and enhance the flavor of wines, particularly with reds. Joan Davenport, Emerta Professor of Soil Sciences at Washington State University says to get an accurate measure of soil moisture, you need to focus monitoring where the roots are. These measurements are ideally taken about 15 to 20 inches from the vines. Deficit irrigation can lead to a buildup of salt and sodium, negatively impacting soil quality. Salts cause root b...
Jul 15, 2021•26 min•Ep. 112
Every vineyard has a portion of the property that is non-productive, but are there ways to maximize the benefits of this land? Fintan du Fresne, General Manager and Winemaker for both Chamisal Vineyards and Maine Wines and Christian Rodriguez, Assistant Vineyard Manager at Chamisal Vineyards found the answer to this question with a Miyawaki Mini-forest. Conceived by Japanese botanist Akira Miyawaki, these mini-forests can take be developed in spaces as small as 30 square yards. Development of a ...
Jul 01, 2021•20 min•Ep. 111
Vineyard development begins with the soil. Steve Vierra, Director of Vineyard Operation at Derby Wine Estates and Certified Professional Soil Scientist, has developed many vineyards since the 1990s and always begins with a site evaluation to determine what is actually plantable. This includes a deep dive into all aspects of the prospective vineyard including climate, rain fall, aspect, slope, rootstock, soil types, and best varieties to create a self-sustaining vine. The goal is to develop a vin...
Jun 17, 2021•31 min•Ep. 110
The introductory voice and producer of this podcast, Beth Vukmanic, joined Jaime Lewis of CONSUMED in the much-awaited season nine. The CONSUMED podcast stokes candid conversation about life and flavor, ten episodes at a time. Jaime interviews eaters, drinkers, thinkers and makers across California and especially at its heart, the Central Coast. And, this past year, CONSUMED hit the top 40 podcasts about food and wine in the United States. Enjoy this rebroadcast. An Introduction from the CONSUME...
Jun 03, 2021•52 min•Ep. 109
There is no doubt that water is a precious resource, particularly in drought prone regions like California. It is very important for growers to measure soil moisture and there are a bevy of technological devices available to utilize. From soil moisture probes to pressure bombs, these tools are helpful but, they only provide data on once specific area at a time and many are time consuming to use. Today, there is a lot of free satellite data available and that data is being captured by Irriwatch. ...
May 20, 2021•32 min•Ep. 108
Using sheep to graze vineyards has many benefits including lowering the carbon footprint, fewer tractor passes, and reduced herbicide use. Kelsey Brewer, Ph.D. Candidate at the University of California at Davis has been researching how these living lawnmowers impact nutrient and energy flows in the eco system. When tractors were replaced by sheep, the research team found that vineyards had 1.3 times more organic matter and nitrogen plus twice as much available soil nitrogen in the soil. Grazed v...
May 06, 2021•30 min•Ep. 107
What, bury charcoal in the vineyard? Biochar is a specialized form of charcoal made from waste woody biomass at high temperature in the absence of oxygen. We know soil organic matter is important for the health of any crop. It turns out the use of charwood (biochar) goes back to ancient civilizations and it can be found naturally in soils from fire events. Doug Beck, Science Officer at Monterey Pacific in Monterey California, recently conducted a four-year trial to test the impacts of biochar an...
Apr 15, 2021•27 min•Ep. 106
Higher education is important to many students but paying for college can be challenging. The Vineyard Team Educational Scholarship helps college students whose parents work in members' vineyards and wineries achieve their dreams. The Smiths of Saxum and James Berry Vineyard, know that our people are vital to sustainability. Justin Smith tells the story of Juan Nevarez, a person instrumental in their wine business for over three decades, and their inspiration to donate to the scholarship fund in...
Apr 08, 2021•10 min
In 2008 the oversupply of Sauvignon Blanc coupled with the financial crisis lead to trialing shaking to remove berries in New Zealand for the very first time. A few years later, the New Zealand Winegrowers Society funded a three-year grant to test the impacts of shaking on dropping fruit, wine quality, and botrytis. Mark Allen of Allen Vineyard Advisory explains that because shaking the vine four to six weeks after fruit set does cause some damage to the canopy and berries, pathologists assumed ...
Apr 01, 2021•28 min•Ep. 105
The 2020 pandemic showed many brands how social media can be an important means of communication. Heather Daenitz of Craft & Cluster helps wines brands tell their grape to glass story with photography and social media. Keeping up with latest trends and algorithms can be challenging. At the end of the day, Instagram wants to keep people on the platform as long as possible. If you have good content the algorithm will show your posts to more people, benefiting both your brand awareness and Inst...
Mar 18, 2021•25 min•Ep. 104
The small Priorat region in Spain has a fascinating history dating back to the Moors in the 8th century, to the birth of its wine production for a local monastery in the 1100s to the near complete devastation of its vineyards by phylloxera in the late 19th century. Replanting began in earnest in the 1950s and top reviews by Robert Parker in the 2000 helped solidify this area as a top wine region in Spain. Local Perinet Winemaker Antoni Sanchez-Ortiz notes how years of abandonment has lead nature...
Mar 04, 2021•31 min•Ep. 103
The resource concentration hypothesis looks at how the advent of modern agriculture as monoculture created an environment where pests can grow faster because their resource, the crop, is more prevalent. Biodiversity is fundamental for pest management and Daniel Paredes, Postdoctoral Fellow at the University of California Davis, in the department of Wildlife Fish and Conservation Biology, is studying how sustaining natural habitat around vineyards can increase biodiversity. Promotion of natural h...
Feb 18, 2021•23 min•Ep. 102
While grape production does not require extensive water use and the majority of vineyards in the Pacific North West are drip irrigated, drought conditions in recent years have led growers to seek more efficiencies to reduce water use. Pete Jacoby, Professor of Crops and Soil Sciences at Washington State University knows that in a traditional drip irrigated vineyard, water is lost through evaporation plus plants loose about 90 percent of the water they take up through transportation. Most sub-sur...
Feb 04, 2021•33 min•Ep. 101
Once a vineyard manger has found disease there is often not much to be done, they are merely mitigating loss. The Lab at Cornell has launched several grape disease sensing technology projects to study early detection and how to use that information. Leading the research is Katie Gold, assistant professor of plant pathology and plant microbe-biology at Cornell AgriTech. The programs utilize imaging spectroscopy (also known as hyperspectral imaging) deployed at all scales, from autonomous rovers t...
Jan 21, 2021•24 min•Ep. 100
Wildfires and COVID impacted legislation as much as they impacted wine production this year. Lauren Noland-Hajik, Attorney and Lobbyist at Soares & Conway coves some of the major changes seen in 2020 and what is coming up in 2021. The March shutdown of the legislature due to COVID resulted in the handing off of power from the legislature off to governor to make executive orders. This is a scenario that has not been seen in a long time and was still in place as of the end of 2020. With the ex...
Jan 07, 2021•39 min•Ep. 99
