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Grapevine Articles & Analysis
24 articles found
Grape Powdery Mildew One of the most serious and persistent diseases that plagues grape growers on the West Coast is Grapevine powdery mildew (Erisiphe necator). It is a fungal disease that effects wine grape, table grape, and raisin vineyards. ...
In California’s sun-soaked vineyards, where the wine and table grape industries are cornerstones of the state’s agricultural economy, powdery mildew remains a relentless adversary. Caused by the fungal pathogen Erysiphe necator, powdery mildew is one of the most pervasive and damaging diseases in viticulture, affecting both the yield and the market quality of grapes. Once ...
An article reporting their methodology was featured in Plant Science in 2014, describing how the Researchers used temperature gradient greenhouses and growth chamber greenhouses to simulate climate change conditions and study plant responses.4Choosing the Right Growth ChamberCompared to traditional growth chambers, temperature gradient greenhouses and controlled growth chambers offer increased ...
High yield reduction will be expected due to these cold waves, occurring after weeks of heat and crop development. During dormancy, grapevines can support temperatures as low as -15°C. However, as soon as the vines bud, they become more vulnerable. ...
The challenge The researchers from the Institute of Agricultural Biology of Mendoza needed to determine grapevine sugars on different phenological grown stages. The samples included mature and young leaves, berries, and ...
” The other major pest for grapevines in California is the vine mealybug, which transmits the leaf roll virus. ...
At the time of this writing, no such robot refurbishing plant exists (nothing we’ve heard about through the grapevine, or found online). When the inevitable happens, and the first robotic refurbishing line is up and running, we’ll be sure to update this post under the heading “We Told You So”. ;-) We hope this installment has been helpful and ...
Construction on the bridges across many rivers in the low country of South Carolina has been needed for along time. As with 90% of our nations’ bridges, these bridges have deteriorated from salt corrosion and age. Outdated for today’s heavy traffic, the bridges will slowly need to be replaced. Funds for this construction have been appropriated and work has started in South Carolina ...
ByCETCO
Winemakers rely on their instincts, palettes, and a thorough knowledge of the nuances involved in every stage of the winemaking process as they strive to achieve the flavors and qualities that they desire.Even a cursory overview of certain elements of the process underscores the critical role played by gases…from fermentation to first sip…in preserving the flavors created and nurtured by the ...
Leaf Area/Crop Weight Ratios of Grapevines: Influence on Fruit Composition and Wine Quality. Am J Enol Vitic. 56: 170-181. ...
Discussion of practical consequences related to irrigation volume and frequency, and the need to systematically relate irrigation strategies to the effects on plant water use and fruit ...
Discussion of practical consequences related to irrigation volume and frequency, and the need to systematically relate irrigation strategies to the effects on plant water use and fruit ...
PureVine can help quantify the prevalence and reveal the locations of specific grapevine diseases in vineyard blocks. Using PureVine with our water content data can enable more accurate usage of precision irrigation systems. ...
ByVineView
In a previous post we discussed how Grapevine Leafroll disease affects grapevines but to quickly recap, Grapevine Leafroll Disease is one of the most common and persistent grapevine diseases; it can have devastating impacts on a vineyard, delaying fruit maturity and dramatically reducing fruit quality, pigmentation, vine vigor, ...
ByVineView
An area of extremely high vigor might indicate a water leak that needs attention, whereas an area showing very low vigor might be the result of nutrient deficiency or grapevine disease. We also offer disease mapping and are able to scout for grapevine disease 200 times more efficiently than traditional scouting methods. Our technology was even proven to be more ...
ByVineView
VineView also uses both multi and hyperspectral data which allows us to spectrally isolate the grapevine from the surrounding soil and cover crop, so you get just the vine canopy information, and none of the “noise”. ...
ByVineView
For example, an area of extremely high vigor might indicate a water leak that needs attention, whereas an area showing very low vigor might be the result of nutrient deficiency or grapevine disease. Interestingly, however, there are several common vine diseases which can be associated with high vigor levels as well. ...
ByVineView
Grapevine leafroll disease (GLD) is one of the most common and persistent grapevine diseases, present in all grape-growing regions of the world, and affecting up to 50 per cent of vineyards globally.1 It is a viral disease caused by a small insect called the grapevine mealybug, which are known to be carriers of Grapevine ...
ByVineView
Researchers have used these greenhouses to investigate the potential effects of climate change on the growth of grapevine, alfalfa and lettuce. CO2 Sensors for Climate Change Research Researchers investigating the effects of climate change on plant growth using greenhouses or growth chambers will require highly accurate CO2 measurements. ...
California’s drought underscores the need to improve how the state - and the rest of us - divvy up a resource in demand. Grapevines march across wires strung along rolling hills, their little trunks improbably supporting heavy black fruit. ...
ByEnsia