I live in northern Florida and have a pond that is covered in
duckweed. It's a natural mud pond, fed by some kind of spring (I've
never found it, but the pond feeds a tiny stream and the pond never
runs out of water). I have ducks that visit and eat the stuff, but
they don't eat enough to control it. Likewise with the turtles. Aside
from grass carp, does anyone know of a way to control it?
..