It is in many old farm ponds around here. I would venture to say most. It does not seem to be such an issue in deeper portions of ponds, but where an old pond is shallow it can spread all the way across.
I've seen none in my main pond yet, but the brand new sediment pond ahead of the main pond already has a couple sprigs, so I'm guessing birds or animals brought seeds in.
It is thick in the seasonal creek below the dam. Very common plant for us.
Last edited by snrub; 10/19/14 02:14 PM.
