Word: salvinia
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Dates: during 2000-2009
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...variety, and the damage they inflict on local species and crops, is growing apace with the doubling in U.S. foreign trade over the past decade. In the U.S., they cause upwards of $100 billion in economic losses annually, according to Cornell researcher David Pimentel. Among recent invaders is giant salvinia, a freshwater weed infesting lakes and waterways in the South and West. The Asian long-horn beetle, pictured at right, is gnawing away at Chicago-area trees. In April, environmentalists filed a suit to force the EPA to bar oceangoing vessels from dumping their ballast water--a major source...
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