I have 3 strip mine ponds on my property and two of them now get covered with duckweed every summer. It floats and looks like algae, but it's a weed. I've checked all the extension services, etc., but no one seems to have an answer. Amur carp don't seem to eat it and I would have as much as $2,000 in chemicals each year if I went that route. Then, I would have to use chemicals again each year.
If anyone has a way to get rid of this weed without my needing a second mortgage, please let me know.
