Aquatic invasive species spread aggressively and crowd out native plants, fish and wildlife, potentially devastating the health of our lakes. The Waupaca Chain O'Lakes Lake District and the Waupaca Chain O'Lakes Association are working hard to control three species identified in the Waupaca Chain O'Lakes: Purple Loosestrife, Curly Leaf Pondweed and Eurasian Water Milfoil.
Purple Loosestrife Purple Loosestrife is distinguished by its squared stem, whorled leaves and bright magenta flowers. Additional Information Eurasian Milfoil
Eurasion Water Milfoil is distinguished by its whorls of leaves with 12-21 pairs of leaflets. Additional Information 
Curly Leafed Pondweed
Curly Leafed Pondweed is distinguished by its crisp, wavy leaves.