Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Duckweed control

Gravinus my next door neighbor has a small pond with almost zero "flow". It's more of what I call a "tank". He has duckweed this year. Not nearly as bad as you do, but still he wants to get rid of it. I called an online pond supply company and spoke at length with a very informative young man about how best to combat duckweed at my neighbors pond. He talked me into trying a product they sell called Pond Logic "WipeOut". It isn't cheap, but he claimed it is cheaper than other more well known products for duckweed. He said for a smaller pond with little flow WipeOut is a once a season product. My neighbor is pouring Pond Logic "WipeOut" into his pond this week. I will let you know how well it works.

https://www.thepondguy.com/product/pond-logic-wipeout/aquatic-herbicides