| http://www.w3.org/ns/prov#value | - Tracy Kahn, a botanist who curates UC Riverside???s Citrus Variety Collection, explains that most infected trees die within a few years. ???They are losing trees in Florida left and right,??? she says, ???and it is really hard to keep an industry going because trees have a very short life.??? The Citrus Variety Collection is the largest in the world, with more than 1,000 kinds of fruit, many of them
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