Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Variable Leaf Pondweed control

The pondweed in my pond is already forming. We had this weed last year but never treated and it was almost imposible to go fishing. I do want to control this weed but I do not want to kill this other emergent plant. This weed grows around the pond and is great fish habitat. How could I kill the pondweed but not emergent weed.