Downy mildew survey of winegrowers in Bordeaux and Gaillac (France) for the year 2000 | Enquete mildiou conduite aupres des viticulteurs du Bordelais et du Gaillacois (France) sur la campagne 2000

aquitaine aquitania beverage crops chemical control control de enfermedades crop losses disease control encuestas epidemia epidemics epidemie fongicide fungicidas fungicides grapevines lutte chimique midi pyrenees mildews mildiou oidium mildiu plantas para bebidas plasmopara viticola surveys vid vigne