PF, is it a safe bet that these will also work on water meal as it's pretty much the same thing as duckweed (I think?)?
Flouridone is just about the only option I would use on watermeal. You would think it is a safe bet, but it's not. The only thing they have in common is they float. Diquat kind of works on it and the rest are poor or not much effect. Some people say flouridone only for watermeal. I also thought watermeal is just itty bitty duckweed, but I guess it is much harder to get it to take in certain ingrediants.
