herbicide-free case studies

- CASE STUDY V -

ESTATE VALLEY FLOOR

Vineyard area:

44 acres

Site Characteristics:

Rolling hills. A few rocky areas. Some side-slope where it’s too narrow for a tractor.

Tools/Equipment used:

Handheld gas-powered weed wackers used just after weeds germinate
Gramegna tractor-mounted in-row tiller. Challenges: Slow & one-sided
Shovel
Piloting a few weed-trimmer attachments

Passes:

1 - 2 passes depending on growing season conditions

Organic Herbicides?

Tried but were expensive, ineffective, and felt their use was moving away from why we’re organic in the first place.

GRAZING?

Hire sheep before bud break (Kaos)

Tillage?

Currently, some blocks are no-till and some alternate till. Goal to be entirely no-till. Even in a dry year we didn’t see a drop in yield in no-till blocks.

Weeds of concern?

Some of the very aromatic we don’t want in the fruiting zone (e.g., hit Mare’s Tail with a targeted shovel pass). Johnson grass - tall, vigorous and deep-rooted - do worry about competition.

Aesthetics?

Fair tolerance for weeds in the vineyard. Mostly dead or dormant for core vineyard management. Some dead/dormant weeds are also shading out further weed growth.

Certification(s):

Organic
Regenerative Organic

COSTs:

Annual farming costs/acre ~$12,000

Weed Management Costs:
Suppress (organic herbicide): $138.57/pass
Gramegna: $141.06/pass
Weedwacker: $119.70/pass ​​
Yearly Weed Management Cost/Acre =$400/acre

The “Virtuo” cap is made from 100% recycled pure tin showcasing a commitment to both aesthetics and the environment. Not only is it made out of recycled material, but it is also recyclable! 

Learn more by reaching out to @cork_supply, the exclusive supplier of the Crealis “Virtuo” capsules in Napa. Cork Supply is not only a @napagreen sustainability partner, but they are also @bcorporation  certified showing a deep commitment to people, products, and the planet. 

#wineindustry #winebusiness #supplychain #climateaction
18 1
@crossroadsbyrudd wines are estate grown, organically farmed and @napagreen certified from soil-to-bottle. Each wine expresses a distinct sense of place, and are an authentic introduction to the people, land, and thoughtful craftsmanship behind every bottle. 

#winetasting #sustainablewine #regenerativeag #visitnapavalley #wine
34 4
The North Bay Zero Waste Collective is a grassroots organization that formed at @risewinesymposium in 2023 that helps to create a circular, closed-loop recycling system for the wine industry. 

Hear about the latest hard-to-recycle items they can take thanks to support from @napavintners! 

By working together, the wine industry can make a big impact on reducing waste and closing the loop! Keep up the great work! 🙌

Learn More and get involved at wineindustryzerowaste.com

#climateaction #wineindustry #winebusiness #recycle #zerowaste
56 4
Biodiversity is essential. 

We love working with our friends at the @monarchjointventure to incorporate monarch and other pollinator habitat into vineyards and adjacent lands. Check them out to learn more. 

#biodiversity #regenerativeag #regenerativeviticulture #climateaction #pollinator
29 4
Thank you to all of our incredible speakers who shared their experiences with regenerative viticulture including techniques, tools, and services that enhance the health of their vines, reduce reliance on inputs, and increase the resilience of their vineyards and community. 

Special thanks to @chandonusa for the hospitality! 

#regenerativeag #regenerativeviticulture #climateaction #soilhealth #biodiversity
112 7
Thanks to @kcuz and @naparegister for highlighting the work that is being done by our incredible community and members.

“Sustainability is not just about the environment, it’s also about financial sustainability and the human aspect.” - Ben Mackie (@soilrainandhope)

#climateaction #regenerativeag #wineindustry #socialequity #environmentalstewardship
36 4
Today and everyday, we are grateful for our members, partners, and community who work together to drive ecosystem restoration, reduce carbon footprints, and address climate action and social equity in the wine industry! 

Join us in raising a glass of @napagreen certified wine to celebrate Earth Day! 

#earthday #earthdayeveryday #climateaction #regenerativeag #sustainablewine
26 0
Bid on the Ultimate Ranch Immersion in Rutherford for Two!

Step away from the ordinary and immerse yourselves in the vibrant heart of Napa Valley with this exclusive two-night “Vigneron” experience at Tres Sabores, a Napa Green certified, organic estate. This is a rare invitation to live the “Ranch Life” and support a great cause!

You and a guest will enjoy a two-night stay in the charming, vineyard-side Casita, a private retreat tucked directly into the Rutherford Bench vines. Tres Sabores is a woman-owned and led “hidden gem” where owner and winemaker Julie Johnson provides a genuine expression of her Rutherford home.

Your Experience Includes:
🍇 Casita Accommodations 
🍇 Culinary Delights
🍇 Vigneron Immersion
🍇 Estate Tasting
🍇 And More! 

This unforgettable package is being offered in support of Napa Green. Place your bid now for a chance to experience this unique, intimate Napa Valley getaway.

Link to bid in bio. 

#ecotravel #ecotraveller #sustainablelife #regenerativefarming winetasting
40 0
Exclusive Experience Alert!

Rarely does an opportunity arise to step behind the gabion walls of @dominusestatewinery. As the winery is strictly closed to the public, this lot offers a near-impossible-to-book journey for the serious collector. 

The Terroir: Your afternoon begins with a private technical walk through the Napanook Vineyard. Learn about the estate’s pioneering dry-farming practices and the gravely soils that produce the structure for which Dominus is world-renowned.

The Architecture: Step inside the iconic, gabion-clad winery designed by Pritzker Prize–winning architects Herzog & de Meuron. You will explore the “stone wickerwork” of this architectural marvel, which blends seamlessly into the Yountville landscape.

The Vertical Tasting: The visit culminates in an intimate, private tasting of multiple vintages of Dominus. This vertical exploration allows you to experience the evolution of these wines side-by-side, guided by an estate expert.

This exclusive experience awaits your bid at the 6th Annual @grapes.for.humanity.canada Auction. Proceeds go directly towards supporting climate action initiatives within the wine industry.

Link to bid in bio. 

#climateaction #nonprofit #visitnapa #ecotourism
21 1
Insider Experience Alert! 

Experience a luxurious deep dive into one of Napa Valley’s most hallowed sites. This lot combines a historic stay at The @salvestrin.inn with a masterclass in terroir through the lens of the legendary @salvestrinwinery Dr. Crane Vineyard.

A Two-Night Estate Escape: Enjoy a two-night stay for two guests at the historic Inn at Salvestrin. Located directly on the estate, you’ll be steps away from the vines and minutes from downtown St. Helena.

The Dr. Crane Library Vertical: A private, hosted tasting for two featuring a curated vertical flight of library wines. Experience the evolution of the stony, sun-drenched Dr. Crane soils across multiple vintages.

This insider experience awaits your bid at the 6th Annual @grapes.for.humanity.canada Auction. Proceeds go directly towards supporting climate action initiatives within the wine industry.

Link to bid in bio. 

#climateaction #nonprofit #visitnapa #ecotourism
22 2
Celebrate Earth Day Napa with the @napagreen team at @earthdaynapa on Saturday, April 18, 2026 at the Oxbow Commons. 

Enjoy Napa Green Certified wines donated by sustainability leaders, @stsupery and @cliffamily, who both won 2026 California Green Medal Sustainable Winegrowing Awards!

Featured wines:
🌱 St. Supéry Estate Sauvignon Blanc
🌱 St. Supéry Estate Rosé
🌱 Clif Family Rte Blanc
🌱 Clif Family The Climber

All proceeds from the donated wine support the Environmental Education Coalition of Napa County’s Field Trip Bus Grant Program and the Darcy Aston Scholarship.

Cheers to a sustainable Earth Day, and every day!

#earthday #earthmonth #climateaction #sustainablewine
54 1
Soil-to-bottle sustainable experience alert!

Join the team at @spottswoodewinery for an intimate immersion into one of Napa Valley’s most celebrated heritage estates. Widely regarded as a benchmark of Napa Valley excellence, Spottswoode is a global pioneer in regenerative viticulture and a dedicated guardian of the land.

Four guests will enjoy an exclusive “Soil-to-Bottle” walking tour of the historic 40-acre St. Helena estate, which has been farmed organically since 1985, and the Take-Home Collection. 

This exclusive soil-to-bottle experience awaits your bid at the 6th Annual @grapes.for.humanity.canada Auction. Proceeds go directly towards supporting climate action initiatives within the wine industry.

➡️ Link to bid in bio.

#climateaction #nonprofit #visitnapa #ecotourism
28 2
Dream Destination Alert! 

Step away from the tourist path and into the heart of the Napa Valley. You and a guest are invited to the western foothills of the Rutherford Bench for a two-night stay at the @tressabores Casita - a charming, private retreat tucked directly into the vines of this  @napagreen certified organic estate.

A dream experience awaits your bid at the 6th Annual @grapes.for.humanity.canada Auction. Proceeds go directly towards supporting climate action initiatives within the wine industry.

Link in bio.

🧳🐑🍷

#climateaction #nonprofit #visitnapa #ecotourism #ecotravel
33 4
Join us for an engaging presentation from regional leaders in regenerative viticulture. We will discuss techniques, tools, and services that help growers enhance the health of their vines, reduce their reliance on inputs, and increase the resilience of their vineyards to mother nature’s curveballs. 

Tuesday, April 28th at the @chandonusa tasting room 

Including speakers from @matthiasson_wine @spottswoodewinery @bedrockwines @lallemandplantcareusa @hopenvironmental1965 

➡️ ticket link in bio 

#regenerativeag #regenerativeviticulture #climateaction
42 3
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