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Winemakers Debate Optical Sorting
 
03.05.2015
 
Tasting conducted at inaugural Innovation + Quality event in Napa Valley
 
“optical
 
Attendees compare wines made from grapes that passed through an optical sorting machine with those that didn’t Wednesday at the Innovation + Quality conference held at Charles Krug Winery.
St. Helena, Calif.—An optical sorter could easily be the next de rigueur accessory on the well-financed crush pad of a premium winery, but some winemakers aren’t convinced.

The inaugural Innovation + Quality (IQ) conference held Wednesday at Charles Krug Winery featured a panel discussion by winemakers as well as a comparative tasting of wines made with fruit that had undergone optical sorting versus control wines made from grapes that did not pass through the machines.


 
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Damaged Grapes Most at Risk From Fruit Fly
 
03.04.2015
 
Drosophilia can spread spoilage bacteria to cracked or damaged berries
 
“lindsay
 
The female spotted wing drosophila uses its large and jagged ovipositor to break the skin of wine grapes. Photo source: Virginia Tech
Corvallis, Ore.—The tiny insect pest spotted wing drosophila has cast a large shadow over wine grape growers since 2008, when it was first identified in North America in a patch of strawberries at Watsonville, Calif.

Known scientifically as Drosophila suzukii, the fruit fly was identified among Pinot Noir vines in Oregon’s upper Willamette Valley in 2009, as well as in a non-commercial vineyard south of Abbotsford, B.C.

The fly is frightening because of a jagged ovipositor that allows it to saw into ripe fruit and deposit eggs rather than simply taking advantage of damaged fruit like the better-known species D. melanogaster. Under the right conditions, it is also able to reproduce rapidly—up to 13 generations per season in Japan—though the cooler climate of the Pacific Northwest appears to be limiting its fecundity to as little as four generations per season here.

 
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January 2015 $623 million
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January 2014 $583 million $7,514 million
     
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