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Towns Struggle with Aquatic Invasive Plants
An explosion of water chestnut is starting to choke the Sudbury River to the point it’s nearly impossible to take a boat out.

While water chestnuts plague the Sudbury, Assabet and Concord Rivers, Eurasian watermilfoil is thriving in some other local water bodies. Milford spends about $10,000 a year to have a contractor treat Louisa Lake with an aquatic herbicide and Westborough has used the same technique, but don’t see an end to the problem in sight.

The herbicide treatment in late spring wipes out the milfoil, but come fall it has grown back. Wayland’s Heard Pond aquatic plant harvester has made a huge difference over the past 10 years. In 2003, crews pulled 1.2 million pounds of water chestnut from the pond and over the years the haul has drastically dropped to 240 pounds collected in 2013.

 
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The Community Impact of Invasive Species in Michigan - Invasive species costs governments—and the taxpayers who fund them—big time. Consider the sea lamprey, the first known aquatic invasive species in the Great Lakes, which arrived back in the 1830s. The Great Lakes Fishery Commission, funded by both the U.S. and Canadian federal governments, spends $18 million a year controlling the pest. And it's that or we lose even more.


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