Scientists say it's destroying native plants like a biological wildfire out of control. The weed is now found in Ohio and 47 other states.
Biologists have several methods to control it, but they're still looking for an ideal solution.
A small Stowe, Ohio company is revolutionizing the way communities get rid of the milfoil. 90.3's Janet Babin reports. The name Eurasian Water Milfoil might not have a familiar ring, but the weed is well known to many who've been out boating this summer, especially on lakes. Recreational lake users sometimes have to manually clear clumps of the long stringy stuff from boat propellers. It looks like a cross between seaweed and an evergreen bush.