Well I got rid of almost all my duckweed! I have a long thin pond, had a couple of days of good stiff wind that blew it all to one end. I got a rope with some floats on it. Me and my daughter stretched the rope across and drag it to the end. Gathered up all the duck weed and scooped it out with a net. Filled a skid steer bucket about 5 times. Took about 5 hours to get it all. Pond is clear except for a thin rim of duckweed in the weeds around edges. Here in Minnesota it won't grow back this year any more, too cool already. It won't come back until next July. I might be crazy but in 5 hours I got rid of it all with no chemicals, no masses of dead weeds on the bottom, and I got some excercise. I know this can't be done by everyone and won't even work in every pond but I consider myself lucky.
