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  • About Us
    • Mission & History
    • Board of Directors
    • Our Team
    • Grower of the Year
    • Strategic Sponsors
    • Contact Us
  • Sustainable Viticulture
    • Ag Preserve >
      • Conservation Landscape
    • Agricultural Burning
    • Climate Resilience
    • Cover Crops
    • Heat & Drought
    • Pests & Diseases
    • Water & Irrigation >
      • Groundwater Sustainability Plan
  • Resources
    • Best Practices
    • COVID-19
    • Directory
    • Grants
    • Grower Resources >
      • Crop Insurance
      • Napa Winegrape Market
      • Tools for Grape Sales
      • Weather Alert
    • Industry Blog
    • Reports & Research >
      • Cost Studies
      • Grape Crush Report
      • Growing Conditions Report
      • Hang Time Study
      • Napa County Crop Report
      • Vineyard Trials
      • Wages & Benefits Survey
    • Wildfires
  • Events
    • Calendar
    • Past Presentations
    • Harvest STOMP®
    • Fire Resources Fair
    • 48th Annual Celebration
  • Members
    • Member Portal
    • How to Join >
      • Growers
      • Vineyard Management Companies
      • Associates
  • Donate
    • Support Wildfire Initiatives
    • Our Donors
    • Your Impact
    • Ways to Give
    • Quarterly Newsletter

Industry Updates Blog

Napa Valley Grapegrowers Report: Investing in the Aquifer

1/30/2023

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In recent years, there has been a surge in awareness and interest around sustainability and land stewardship across California farming communities — and not only among agricultural producers.

The benefits of farmland preservation and regenerative farming practices have captured the interest of a much larger audience that sees that a farmer’s work can benefit the community as much as the farm itself. This is true in Napa County, where growers are increasingly taking action and demonstrating that returns on environmentally conscience investments in the vineyard can be land-smart, economically beneficial and provide ecosystem services to the collective community.

Land restoration efforts around the Napa watershed are a great example of long-term investments grape growers continue to undertake. These show how doing the right thing can result in a multitude of benefits. The river restoration projects in Oakville, Yountville, and now Oak Knoll reaches have proven to be extremely successful. They have improved the Napa River and instream habitats leading to the repopulation of fish and other animals as well as supported the replenishment of aquifers and decreased the risk of flooding — a domino effect of positive change to local ecosystems!
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Rains are right on time for winegrowers

1/17/2023

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by Carmela Guaglianone, SF Examiner
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As sheets of rain and hail pounded parts of San Francisco Tuesday, Michael Baldacci, owner and winemaker at Baldacci Family Vineyards, looked out his window at the renowned Stags Leap District in Napa County and saw his cover crops coming to life.

Although intense storms continue to wreak widespread damage across the state, the wet weather is a boon for winemakers, who have long been waiting for the rain.

“It just feels like we’ve been kind of praying for this,” said Baldacci. “The rains really have been something that we’ve welcomed the last couple of weeks.”
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Had this storm surge come later in the season, vintners may have been whistling a different tune. But the grapevines are currently in their winter dormancy, a stage between harvest and bud break when the vine drops its leaves and goes into a protective mode for the winter months.
During dormancy, “all rain is good rain,” said Justin Leigon, viticulturist and board member of the Napa Valley Grapegrowers.
That means there won’t be any direct impact on the grapevines or the wine that they produce, said Megan Bartlett, a plant biologist at the UC Davis Department of Viticulture and Enology. However, wet and humid conditions could increase the chance for fungal disease later in the season.
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Best Practices for Winter Storm Events

1/4/2023

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With extreme rain and storm conditions across the greater Bay Area, we recommend following these best practices during rainy winter months.
 
Subsurface drain tiles, sump pumps, and other vineyard “dewatering” systems are important and highly impactful farming tools. However, when run all winter long, they can waste electricity and prevent saturating rains from recharging our subsurface aquifers.
 
Consider turning your sump pump OFF until much closer to bud break.  When set to “auto” for the winter season, we risk unnecessarily adding more runoff to our swelling streams, creeks, and the Napa River. Saturated soils generally do not damage vineyard root systems during the dormant season; therefore concerns are minimal for vine impact.
 
IMPORTANT NOTE: drainage and pumping systems are critical to maintaining roadway access or preventing water from entering wineries and damaging other types of sensitive infrastructure. In these cases, systems need to remain operational.
 
Benefits to turning off sump pumps include:
  • Reduction in electricity cost
  • Increased lifespan of pumps and pump motors
  • Increase in groundwater recharge – critical to our recovery from multi-year drought conditions
  • Potential reduction in downstream flooding
  • No need to service or check sumps during rain events, which reduces labor cost
  • Rainfall infiltration allowed to completely flush accumulated salts well past rootzone
Resources
  • To view all of NVG's best practices papers, visit the NVG Seasonal Best Practices archive
  • Sign-up to for the complimentary NVG Weather Alert. 
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Prevent Smoky Burns and Preserve Air Quality

11/1/2022

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NVG's Low-Smoke Burning Technique & Other Alternatives

Permitted burn season runs from October through April. One of the easiest and most cost-effective alternatives to smoky burns for growers to implement is NVG’s Low-Smoke Ag Burning Technique. Use NVG's step-by-step manual available in English and Spanish to reduce black carbon, preserve air quality, and conduct virtually smoke-free burns!
 
Burning is an essential practice with no alternative when it comes to preventing the spread of vine pests and diseases. In addition to NVG's Low-Smoke Burning Technique, the use of fireboxes such as Airburners can also deliver a clean burn. For vines not compromised due to pest and disease issues, other alternative methods include chipping and grinding.

NVG's Vine Disposal & Open Burning Resources
  • NVG’s Low-Smoke Ag Burning Manuals and Task Force Webpage
  • Open Burning & Vine Disposal Requirements & Best Practices
  • Alternatives to Traditional Agricultural Biomass Burning in Napa Valley (2018), Daniela Bazán, Master of Science in Environmental Management
  • Napa County Agricultural Commissioner Burn Permit Information
  • BAAQMD Regulations
  • BAAQMD'S 'Spare the Air' Status
  • Learn about BAAQMD’s Free Chipping Services​
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Napa Valley Grapegrowers Funds 24/7 Early Fire Detection Sensors for the Community

8/25/2022

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Photo by Emma K Morris
NVG will carry forward a fire detection initiative, funding three early detection sensors for the month of September on Atlas Peak, Clover Flat, and Diamond Mountain with 24/7 monitoring to protect Napa County residents and businesses from wildfires.
 
The Illumination Technologies (ITC) state of the art “IQ FireWatch sensors” triangulate locations of potential fire threats including identifying specific parcel numbers in Napa County. This program was initiated in 2021, funded by Napa County. However, without the passing of Measure L, the service could no longer be maintained through public funds. Through the generosity of local grape growers, the sensors have continued to protect the community through the month of August. NVG will be taking on fiscal responsibility for the service through the month of September, at the peak of harvest and Napa County’s fire season—and in some of the County’s highest fire-risk areas.

“When we realized the service was at risk of shutting down, NVG leadership sprung into action to ensure the sensors stayed on. Early detection is a valuable tool in the toolbox when it comes to protecting the entire community from the wildfires like we’ve experienced over the last several years. We’re proud to carry this community-first, collaborative initiative forward,” said Tom Davies, who sits on NVG’s Board of Directors, Industry Issues Committee, and Wildfire Task Force.
 
As part of this initiative, NVG also commits to working with industry and community partners during the month of September and onward to implement a long-term plan for maintaining ongoing early detection services and expanding coverage to more areas throughout the County. 
 
NVG would like to recognize the incredible generosity and stewardship of Caymus Vineyards and Circle R Ranch & Vineyards for their individual contributions that allowed the ITC service to remain in place through August in service to the entire community.
 
In addition to this initiative, the NVG Wildfire Task Force is engaged with several other projects including:
  • NVG’s Smoke Exposure Data Benchmarking Project in partnership with ETS Labs; ETS Labs’ latest findings will be presented at this year’s ROOTSTOCK symposium on November 18
  • Advancing Napa County’s Ag Pass Program to ensure a safe, at-the-ready program in partnership with the Napa County Ag Commissioner and industry partners
  • Ongoing education on fuel load reduction and fire safety
  • Aiding members in recovery and access to critical Emergency Relief Program (ERP) disaster assistance
For more information, NVG members can access a complete library of Wildfire Resources on NVG’s website.
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Preparing the community for wildfires

4/21/2022

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Photo by Emma K Morris
It’s no surprise that the notion of preparedness and designing defensible spaces has made its way into the mainstream vernacular for all members of our community. Since 2017, 60% of the landcover in Napa County has been touched by fire. Across California, over 4.3 million acres of land burned in 2020 alone.
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Wildfires may have become the new normal in California, but as a community we can work together to be more resilient and better prepared. To this end, creating fire-ready vineyards and landscapes is essential.

In the aftermath of the 2020 Glass Fire, which burned large swaths of the Viader family’s Howell Mountain estate vineyard, as well as 30,000 surrounding trees, proprietor Delia Viader and her son, grape grower and winemaker, Alan Viader, are rebuilding their estate property through a new lens.

​They are preparing for the next fire threat by creating a defensible space that protects their vines and structures and, in circumstances as serious as the Glass Fire, gives firefighters a chance to fend off impending flames safely. And they want to help their wine country neighbors to do the same.
Read the full article
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Napa Valley Grapegrowers Report: Exploring alternatives to traditional agricultural burning

3/13/2022

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​Beautiful and alluring acres upon acres of vineyards along the valley floor and up to the mountains attract many to the Napa Valley to live, work, and visit, and while the tourist economy is going strong it has become increasingly challenging to live and work in the area, motivating many growers in the region to explore alternatives to traditional farming.

Of significant importance to growers is how best to plan for and incorporate sustainable alternatives to traditional agricultural burning in vineyard management. Health and climate change concerns are a crucial part of reevaluating and renovating outdated farming practices. There is clear motivation to implement innovative, community-based solutions to minimize effects on air quality from various sources including transportation, building energy use, wood burning stoves, agricultural practices and more. And after devastating wildfires that have rocked the region and a significantly dry year, growers have more reason to invest in alternatives to traditional agricultural burning.
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Bud Break Begins in Napa Valley

3/2/2022

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2022 bud break in the Carneros AVA, photo credit – Brittany Pederson, Renteria Vineyard Management
Napa Valley Grapegrowers (NVG) announces that bud break has begun in Napa Valley.  “We’re seeing variable bud break in our chardonnay planted in the Carneros AVA,” said Brittany Pederson, Director of Viticulture for Renteria Vineyard Management, “Within the next week, we’ll begin seeing bud break throughout the valley.”
 
Pederson added that her water reserves were full in most locations, and while grape growers need rain, she feels good heading into the new season. “Because the soils are dry, we got a head start with floor management this year,” Pederson said, “For example, we’ve been able to mow and disk early, which helps prepare us for frost season.”  By mowing and disking cover crop now, soils can hold the necessary heat to keep frost from damaging delicate buds, it also allows for air flow – both of which support a healthy growing season for Napa’s vineyards.
 
With sustainable practices top-of-mind, many grape growers are also welcoming sheep into their vineyards.  As herds graze freely on hearty cover crop, their nutrient-rich manure provides a quick way for grape growers to feed their soils, and an excellent way to reduce the usage of mowers throughout the vineyard. 
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From Trash to Terroir: Reusing Vineyard Waste as Compost

12/30/2021

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By Sam Jones

​Grape growers in Napa County are constantly looking for innovative ways to decrease waste while increasing productivity in their vineyards, but not all of these methods are high-tech or brand-new. For many, the act of accumulating, turning and spreading compost is a basic but key part of their vineyard management strategy, and has been practiced since ancient civilizations first prioritized agriculture.

“Composting has always been considered key to better farming and is a key practice employed in Napa Valley vineyards,” said Michael Silacci, winemaker for Opus One and president of the Napa Valley Grapegrowers. “When composting is done properly using good management techniques and temperature monitoring, the result is a fine source of nutrients for plants and it has a positive impact on preventing soil erosion by rebuilding soil structure and supporting plant growth.”
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By increasing microbial activity in these waste materials – think oak leaves, grape stems, manure – pulled from their property, vintners are able to not only benefit soil health, but also keep as much of its waste on-site as possible.
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Cover crops in vineyards mitigate erosion, boost soil nutrients

12/6/2021

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By Sam Jones

When the winter rains come to Napa Valley, soil erosion is at the top of many viticulturists’ minds. Terracing and other structural changes to the terroir are largely a mitigation method of the past, with many vineyards planting the grassy patches between their rows with mustards, legumes, and grasses as cover crops.

And while the blooming yellows of mustard certainly brighten up Napa’s landscape each year, these widespread plants have important ecological benefits as well.

“It’s all about watershed protection,” said Molly Moran Williams, Industry and Community Relations Director for the Napa Valley Grapegrowers. “Cover crops on hillsides prevent erosion, which, in return, protects our river and watershed.”
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“On top of that, in vineyards all over the valley, cover crops add nutrients back into the soil, increase microbiome diversity, and are used widely as a climate-smart farming practice.”
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