Thursday, June 15, 2017, 4:30 pm — Hamilton Seminar Room, Bldg. 555
Vine infection by viruses can significantly affect wine production and shorten the lifetime of the vineyard. One newly discovered virus called "Red Blotch Disease" has a set of symptoms that begin to appear in late August in California red wine varieties. Irregular red blotches, red
veins and necrosis can appear on the basal leaves of shoots and these symptoms mimic phosphorus, potassium or magnesium deficiency. The fruit of these vines do not fully mature in a timely manner, especially in sugar and acidity, resulting in wines with reduced fruit character and a thinner mouth feel. There is no cure and the recommendation is to replant, a costly solution. To mitigate the economic impact, Stockert has been using X-rays to develop methods that might aid plant metabolism by supplementing a specific nutrient to prolong the life of the vineyard. The first in her family to earn a College degree, Stockert has been investigating for more than 17 years grapevines and wine fermentation dynamics.
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