My best method for managing cattails is prevention. Whenever I see the first one or two plants they come out. For complete control, I think the trick is to pull out the first one or two early invaders. The first invading cattails ALWAYS begin growth at the waters edge or only a couple inches deep. Obviously this means patroling the shoreline on a monthly basis. Pay attention to what is growing along the shore while you are harassing the fish. A walk around the pond perimeter is good excercise.
