Points North: Outwitting invasives

Sep 24, 2020

 

Credit Eric Calabro, Michigan Department of Environment, Great Lakes, and Energy

In some inland lakes invasive plants grow so thick, motor boats get stuck and you can’t fish or swim. 


One way to keep these invaders at bay is just starting to get traction in Michigan. It’s called "diver assisted suction harvesting," which might sound a little goofy. It involves a boat equipped with a vacuum, accompanied by a diver pulling up plants along the lakebed. 

And if you’ve visited a vineyard recently, you might have noticed some strange sounds coming from the fields. The noise is another ploy to outwit invasives.