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OCHRATOXIN A IN WINES - THIRD PART : PREVENTION STRATEGIES IN THE VINEYARD

Jacques Rousseau – ICV Viticultural Manager, Institut Coopératif du Vin – La Jasse Maurin – 34970 Lattes – France, www.icv.fr

Good efficiency of grape worm control measures The experiments carried out by the ICV in 2001 and 2002 clearly showed that the efficient control of the grape worm could lead to an 80% reduction in Ochratoxin A levels as compared with a control wine containing over 2 µg/l. In 2001, several plant protection strategies were compared on this Cabernet Sauvignon plot in a study comprising 4 replicates for every treatment. The grapes obtained from each treatment were vinified in the pilot winery of the ICV and were subject to Ochratoxin A analyses. Among the treatments tested, 8 involved the usage of a preventive ovicidal insecticide (Flufenoxuron), and these ones resulted in an average Ochratoxin A reduction of 82% in the wines upon bottling.
Published on 09/27/2004
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