Greg's right on the money. First, guy wants to sell you some koi. They won't eat it, almost no carp will. Second, it ain't like duckweed, it's way harder to kill. If you go slow release fluridone it will be the last thing to die, if it does at all. I think you are better served going spray mist reward on surface emerged watermeal. Bear in mind it will comeback, but at least you might save desired vegetation. Retreat when, not if, it reemerges. Add tilipia.
Or sterilize pond with fluridone. It's slow release so odds are you are not going to crash either way.
Diquat is the active ingrediant in Reward and Weedtrine. Contact spray whatever bottle says, just on surface watermeal and sparingly. You can always hit it again. I'd hit it with a mist, not a stream. Mix in a surfactant to get it to stick to watermeal.
Last edited by The Pond Frog; 07/01/10 06:27 PM.
