Pond Boss Forums AQUATIC VEGETATION Balance of plants in the environment Pondweed, chara, vs duckweed

The nutrients from the cattle pasture are the problem. If there was a way to divert those from entering the pond, I would. If you whack back the chara, my bet is that the visibility will decrease and there might be a FA problem popping up too.

The duckweed will compete for some of the nutrients, but I can't say if you aren't jumping from the frying pan into the fire with the duckweed. I have seen it completely cover a pond without aeration, and in a pond that has aeration there were only 10
-15' circles by the diffusers that didn't have duckweed covering the surface.

You can knock back the Chara in the Spring when it is still bright green and vibrant, but later on in the year as it matures it will be harder to control. You will also be controlling the APW if you have to control the Duckweed, as the majority of chemicals that affect duckweed also affect APW..