Wilding in Vineyards with the Apis Arborea TreeNest

While discussing their Regenerative Farming practices at their American Canyon Vineyard at Grgich Hills Estate, Luke and Ivo Jeramaz showed us the most interesting bee hive. It was cylinder tree log, covered with bark, and located a dozen feet above our head. This TreeNest was designed by the  nonprofit organization Apis Arborea in order to promote wild honeybee populations. Seeing the hive immediately raised two insights. (1)  Yes, wild bees do exist and (2) the TreeNest seemed so nature - as opposed to the boxed nature of commercial bee hives. 

While showing us the TreeNest, Luke described how the bees assist in the general bio-diversity of the American Canyon Vineyard and the surrounding land. The bees can forage up to 8,000 acres assisting in cover crop pollination and as stewards of the landscape, Grgich Hills has a responsibility to make it as natural as possible. 

He also introduced me to Michael Thiele, Founder and President of Apis Arborea.  During our call, Mr. Thiele described the history, challenges and ecological impacts of contemporary beekeeping and why he founded Apis Arborea -- to shift the focus from thinking in terms of commodities (Apis Mellifera) to that of their natural, historical habitat in trees. -- preserving the life and resiliency of honeybees through wilding.

During our exchange, I learned that the modern techniques of beekeeping are modern conventions that force the bees to utilize un-natural processes. In the distant past, beekeepers used egg shape hives or woven skeps -- mimicking how bees nest in nature. However, the "bee box" method employed almost universally today stresses the bees. First according to Thiele, "thermodynamics shows that the walls are too thin to protect the bees". Second, the combs implanted into the wooden frames are artificially sized to maximize output and are not the same size as combs that bees create naturally in the wild. Third, bees prefer to live high in trees -- away from predators; in smaller homes with smaller entrances.   And finally, commercial bee colonies are much more prone to long term extinction by disease as bees from neighboring hives mix easily within the colonies. On the other hand wild hives are much more likely to bounce back after a disease crisis. 

Thus Thiele sees wilding and TreeNests as a more ethical choice and allows bees to create a "self-willed ecological process". And he sees vineyards as a refuge for wild honeybees to recover their health and strength and to live freely -- not in square boxes. 

Courtesy of Apis Arborea

Like Grgich Hills Estate, Spotteswood Estate is another Regenerative Organic Certified (ROC) winery that hosts wild bees through TreeNests. According to Aron Weinkauf (Winemaker & Vineyard Manager), "as they forage to nurture future generations in their hives, bees help to propagate cover crops that enrich the soil in our vineyards and flowering plants that attract other beneficial insects that keep our vines pest free. And as they range up to a mile and a half from their hives, they pollinate our neighbors’ gardens and fruit trees in every direction as well. "

Regenerative Farming at Grgich Hills Estate

Are you familiar with the main principles of Regenerative Farming?  Grgich Hills Estate has been a leader in this innovation, first by farming organically for the past two decades, then biodynamically, and finally regenerative farming as stipulated by Regenerative Organic Certified (ROC) since 2019. 

Winemaker and Vice President of Vineyards & Production Ivo Jeramaz and his son Luke provided an overview of this process during a BevFluence® organized tour of one of the Grgich Hills Estate's American Canyon vineyards. Here they farm 121.5 acres at cooler temperatures and stronger winds than in Napa Valley.  Over a crescendo of songbirds, ducks, geese, and guinea fowl; Ivo and Luke described how Grgich Hills implements five principles of Regenerative Farming leading to a vibrant nature preserve, productive grapes, reduced costs, and satisfied employees. Check back later for multiple posts on these chemical free principles, but here are the main features:

1. No till agriculture reduces erosion and keeps valuable nutrients and microbes in the soil.
2. Bio-diversity in the vineyard through at least four plant groups leads to sharing of nutrients.
3. Planting cover crops that become layers of armor by protecting the soil from sunlight and maintains moisture.
4. Let animals manage most vineyard activities such as mowing and pest control. Grgich Hills uses sheep, owls, songbirds, guinea fowl, and other animals to control cover crops and pests.
5. Institute labor practices that ensure sufficient wages and worker safety that leads to greater retention and thus increased productivity.

Grgich Hills also provided a fantastic library tasting of their iconic wines -- after a refreshing glass of their 2021 Essence Estate Sauvignon Blanc ($55). This saline driven refreshing wine offers white grapefruit and stone fruit and is made from practically a 50-50 blend of American Canyon and Carneros grapes.  The 2016 Estate Napa Valley Chardonnay still carries similar acidity and minerality with floral and sweet apple and pear notes. 

Moving to red library wines, we started with the 2018 Estate Napa Valley Merlot which is a blend from three vineyards - the cooler American Canyon and Carneros vineyards and the warmer Yountville vineyard. Expect savory red fruit, some mint, structure and a balanced acidic - but polished finish. We had the pleasure to sip their 2014 Estate Napa Valley Cabernet Sauvignon and compare it to their 2007 Estate Napa Valley Cabernet Sauvignon. The 2014 starts with a wonderful mouthfeel of black fruit and juicy structured tannins. Whereas the 2007 is lighter, it is still vibrant with noticeable tannins mingling with ripe raspberries. The final wine was the 2013 Estate Napa Valley  Miljenko's Old Vine Zinfandel sourced from 135-year-old vines grown in Calistoga. Think of savory black fruit dusted with black pepper finishing with juicy tannins.