golfnut - 7/8/2024 08:17
Duckweed is difficult once it is established. I dealt with it in 2022 and learned from that. First, I put in a circulator. This keeps the water moving and helps the pond digest the muck and nutrients that are feeding the duckweek. Also, look for a pond herbicide with flumioxazin. Ultimately, I found that spot treating small areas with 2-4,d on a calm day works as well but treating an entire pond that way would be difficult. The flumioxazin is labeled for it.