Biological Control: A plant-eating weevil native to North America likes to eat the stems and leaves of Eurasian water-milfoil.

What animals eat milfoil?

Adult weevils primarily eat milfoil leaves, but will also consume stem tissues. This is the only stage of the weevil that can exit the water.

How do I get rid of Eurasian watermilfoil?

Eurasian Watermilfoil can be removed by cutting and raking from the pond. It will regrow from remaining roots and seeds. Pond Dye can be used to limit sunlight into the pond. With reduced sunlight, photosynthesis cannot occur so growth will be stunted.