The July application of herbicide to Michigan's Kawkawlin River appears to have been successful in removing infestations of curly-leaved pondweed (Potemogeton crispus) and Eurasian watermilfoil (Myriophyllum spicatum). But as reported by The Bay City Times, property owners in the area aren't happy. The reason? Parts of the river are now filled to the brim with water lilies, happy to take up the space vacated by the non-native aquatic plants. The article does not mention what the species is, but does note that it is native. The Kawkawlin River Watershed Property Owners Association is considering its options, including another round with herbicide. Property owners are allowed to remove the lilies in front of their homes by hand, but must apply for a permit to treat the river with chemicals.