| http://www.w3.org/ns/prov#value | - Pesticides, of course, are an option, but they can be burdensome and, at hundreds of dollars a year, prohibitively expensive for many farmers. ???Spraying fungicides is a major endeavor,??? Fernando Vega, a researcher at the U.S. Department of Agriculture, tells me. ???Imagine going up and down hills with a 5-gallon backpack sprayer weighing 41.5 pounds.??? Spraying treatments also come with the r
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