Archive | November, 2007

Giant Salvinia

The Next Serious Threat In ponds, lakes, and reservoirs from North Carolina to Hawaii, a stealthy invader called giant salvinia (Salvania molesta ) is making an unwanted appearance. This free-floating fern that originated in Brazil has earned a reputation as one of the world’s worst aquatic weeds—and with good reason. The United States Geological Survey […]

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