[944Larry]

If you have broadleaf troubles there is an aquatic 2,4D which is in pellet form which works well. Use Rodeo for grasses. If you do treat your pond only do about 1/3 of it at a time if you have fish in it. If you kill too much at once the rotting vegetation will reduce the oxygen level in the pond and kill your fish. No fish? Zap it all at once.