Vineyard managers know road dust produces problems for engines and moving parts, provides a wonderful habitat for mites, causes vineyard stress, diminishes chlorophyll production and can introduce soil-borne critters at harvest. There are also many people who worry about air quality and take "fugitive dust emissions" very seriously. For example, Maricopa County in Arizona is having a "dust war," and statutes now require anyone disturbing just one-tenth of an acre and produci...