Todd, that is pretty much verbatim for my ol favorite Ohio State fact sheets. And yes, Flouridone is as nasty as it is expensive. I tend to use it way less then full strength, and only when I want everything in the water dead. You have to be very careful putting it in any body of water with lots of fish before the Summer. The only reason I use it to nail duckweed and especially watermeal is they are going to kill everything anyway, and you have a chance of not killing phytoplankton with Flouridone, where any pond blanket will totally block sunlight and kill it dead for sure. I think it is the most misused herbicide by professionals there is. A little goes a long ways and you really have to wait it out, plus, it sticks from one to two seasons depending on flows. I have seen guys second dose it for some reason, faster results or overkill and boy does it ever.

Last edited by The Pond Frog; 06/17/10 01:04 PM.