Is the Northeast Entering Its Wildfire Era?
November 20, 2024 | The New York Times
The Northeast entered 2024 with the wettest weather in more than 40 years, but since June it’s seen the driest conditions in the same period. That’s sparked 860 wildfires across New Jersey (the fastest-warming state in the region), New York and Connecticut, burning thousands of acres this fall. New York City has had more than 270 fires in November alone, the most in the city’s history. In response, city officials announced NYC’s first-ever Brush Fire Task Force.
Preparing Vines for Winter: Research-Driven Approaches to Cold Hardiness in Vineyards
November 19, 2024 | MSU Extension
Did you know that the trigger for grapevines' dormancy depends on their heritage? For North American grape varieties, it’s the shortening of the days. But European varieties rely more on temperature cues, making them more vulnerable to early fall frost. Here, Michigan State viticulture extension specialist Paolo Sabbatini shares “research-driven approaches” to dormancy, including the phases of cold acclimation, factors affecting cold-hardiness and management best-practices for preparing vines for winter.
Hansen: Winterizing Wine Grapes
November 6, 2024 | Good Fruit Grower
In arid grape-growing regions like Washington State, irrigation is often used as a tool to encourage cold acclimation. For example, growers may reduce watering prior to harvest to reduce shoot growth and induce hardening off for the winter. But WSU’s Markus Keller says there’s no scientific evidence connecting harvest date, pre-harvest water management and vine hardening off. In fact, current “best practices” are based on a misunderstanding of grapevine physiology. He’s leading new research on better understanding of the grapevine dormancy cycle and how growers can prepare vines for it.
Grapevine Pangenome Facilitates Trait Genetics and Genomic Breeding
November 4, 2024 | Nature Genetics
Grapevine breeding is hindered by a limited understanding of the genetic basis of complex agronomic traits (e.g., traits that involve more than one gene). But a new pangenome reference called Grapepan v.1.0, constructed by a team of Chinese scientists, will help. It maps 148 quantitative trait loci for 29 agronomic traits from 466 wine and table grape cultivars, including bunch architecture, berry content and size/shape and skin texture.
Searching for Cultivars to Meet Climate Change Challenges
November 1, 2024 | Wine Business Monthly
The Virginia Vineyards Association and USDA’s Agricultural Research Service have created a winegrape breeding program to address the state’s burgeoning wine industry and grape-growing challenges. ARS research geneticist Surya Sapkota leads the effort to understand the grape traits that would be best adapted to the state’s terroir, changing climate and disease threats, then develop new cultivars that bear those traits…and make good wine.
FIRA USA Expo Features Autonomous, Robotic Tech and Equipment for Farms and Vineyards
November 1, 2024 | Wine Business Monthly
At FIRA USA in October, ag tech took center stage. A panel of vineyardists, including NGRA member Eric Pooler (Nuveen Natural Capital), discussed the benefits and risks of being an early adopter of vit tech. “Get(ting) in on the ground floor allows us to steer where the technology goes,” said one panelist. “It doesn't always work out, but when it does you can reap the benefits of that technology ahead of the rest of the market.”
Modern Powdery Mildew Management with Dr. Michelle Moyer
October 29, 2024 | Vineyard Underground Podcast
Tune in as WSU’s Michelle Moyer shares her thoughts on and experience with modern powdery mildew management. She explains that, as an “obligate biotroph,” powdery mildew fungi can only survive on actively growing, living tissue. And it’s really in tune with its host’s stress level. So, when vines are under water or heat stress, disease pressure, etc., powdery mildew doesn’t do well. And aging—another stressor—is a critical limiting factor. That “ontogenic resistance,” she says, means that, as grapevine tissue gets older, powdery mildew can’t infect it anymore.
Workers For Robots
October 27, 2024 | Cremieux Recueil
In this literature review of studies on automation's effect on jobs, the author (a Substack poster) writes, “Studies agree, labor-saving technology replaces workers! But…it does so by saving costs and potentially increasing productivity, ultimately stimulating the demand for labor. To that end, we should also expect technology to reinstate workers,” an effect he finds in 79 studies. Plus, he says, new technology boosts real incomes. “AI might be able to finally take labor out of the hands of humans,” the author concedes. But we’re not there yet.
Why a $33,000 Wine Made from Rare Grapes Is Polarizing the Wine World
October 27, 2024 | Robb Report
A wine called Liber Pater made in limited quantities from long-forgotten native French varieties that predate the Bordeaux classification, grown ungrafted and farmed in France using a horse and plow sells for $33,000 a bottle. The winemaker says drinking it is like having “dinner with Napoleon” and “time travel in a glass.” It shows the power of a good story…and location.
Vineyard Winterization
October 25, 2024 | Buckeye Appellation Blog
Looking for some guidance—or a refresher—on getting your vineyard ready for winter? Ohio State Viticulture Extension Specialist Maria Smith offers a science-based Q&A, including when to remove grow tubes, whether to apply fungicides post-harvest, when to seed ground cover and how to control fall weeds. She also includes tips on scouting for crown gall, taking soil health samples, applying slow-release fertilizers and more.
In Napa, a Winery Solves a Sustainability Issue in a Most Unusual Way
October 25, 2024 | The Vintner Project
A sustainably farmed Napa winery that needed to move some granite soil found that repurposing it as an amendment in a new vineyard block is yielding surprising results. With the young vines’ roots pushing through such well-drained dirt to find water and nutrients, they seem to be maturing more quickly and the fruit quality seems to be farther along, the winemaker says. The 2024 vintage will see the first wines from the winery’s granite block.
Champagne Goes Under Cork
October 24, 2024 | Wine-Searcher
Some Champagne producers are replacing the crown caps traditionally used during secondary fermentation with corks. They say the micro-exchange of oxygen that corks allow can result in greater aromatic complexity, creamier texture and a finer mousse with smaller bubbles. But aging under cork increases cost by €2-3 per bottle, not including added labor.
Trichoderma for Managing Drought Stress: A Step Forward in Combating Climate Change
October 22, 2024 | Bragato Research Institute
Grapevines inoculated with Trichoderma exhibited enhanced growth performance under both drought conditions and normal irrigation compared to those without it. The treated vines developed superior root systems, producing more root biomass and maintaining growth with less water, It’s a promising practice for water-scarce regions, potentially allowing vineyards to remain productive despite reduced irrigation.
Arresting Washington’s Most Wanted Wine Grape Pest
October 10, 2024 | Good Fruit Grower
In many Washington own-rooted vineyards now finding phylloxera, the symptoms have likely gone undetected for years. That’s because by the time vines show canopy decline, the root-feeding insect has moved on to other healthy vines nearby. “If I’d known what I was looking for, I could have found it 10 years ago,” says viticulturist Jason Magnaghi at Figgins Estate Vineyard, who hosted a phylloxera scouting workshop for the Washington State Grape Society and WSU.
Pruning Wound Protection: First Line of Defense for Grapevine Trunk Disease Pathogens
October 2024 | OWRI Vine to Wine Newsletter
The grapevine trunk disease most prevalent in Oregon vineyards is Botryosphaeria dieback. Treating pruning wounds—even when there’s no known incidence—is a must, say Oregon State researchers. But which pruning wound protectants work best for defending against Botryosphaeria in Oregon’s climatic conditions? This team tested organic and conventional options, including BioTam, Topsin, Rally and VitiSeal. Click to read which worked best. (Hint: Usually more than one.)
Non-GMO Genome Editing Approach to Improve Traits Without Inserting Foreign DNA in Grapevine
October 2024 | OWRI Vine to Wine Newsletter
Researchers at Oregon State University have developed a transgene-free gene editing approach, tested in microvines, that can deliver improved plants (e.g., grapevines with traits of interest turned off or on) in less than two years vs. the decades needed to develop new varieties via conventional breeding. Because they contain no foreign DNA, the edited vines are not considered GMOs; and are not regulated under conventional GM regulations.
New Quiz Available: Test Your Knowledge of the Spotted Lanternfly!
September 26, 2024 | Penn State Extension
Take the new Spotted Lanternfly Quiz from the Penn State Wine and Grape group to test your knowledge, learn new facts and discover strategies to help you manage this threat. The more you know, the better you can protect your vineyard and limit the spread of this destructive pest.
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