Thanks to all that responded.
Yes, the Opti-Amine is a 2,4-D. It was in an older "Green Book" os registered pesticides.
The duckweed is not out of control yet so the Reward should work fine.
I really like what I have read and heard about SONAR. It has a lot of good attributes but it seems pretty pricey.
One more quick question.
Can SONAR be used in mid summer on large amounts of Eurasian Milfoil without the fear of killing it too quickly and depleting the oxygen for bass?
