Larry from Stuart, Va writes
Catt Plex should be sprayed as a broadcast or spot treatment for aquatic weeds in accordance with the product label. Catt Plex will not control submerged weeds; you will usually need a differenct active ingredient for submerged weeds. If you have identified the specific plants that you are targeting, then we would be happy to make a recommendation for you.
Answer last updated on: 10/11/2015
