Hi,

I have a one acre pond completely filled with curly leaf. It is 16ft deep everywhere. I also tried dye which made the water very blue for months, with absolutely no effect on the weeds. Currently, I use a weed razor once the weeds ready the surface around June. I am in a more northern area, so my curly leaf seems to have a cycle of dying off around late July, meaning it's only really bad for a couple months. Regardless, I cut using the weed razor by attaching it to a long rope, sending someone out in a small boat, dropping it down and letting it sink, and then someone on the shore pulls it in. The weeds then float to the surface and it takes a while to collect them all using a regular metal rake or by hand in a large row boat. In the area I cut heavily last year, the weeds grew back less dense than in the other, less cut areas. By now, the weeds have sunk down and are not visible from the edges of the pond. They will start to regrow when the ice melts in March. I've never tried any chemical methods of control, as they are hard to find legally around here.

Cutting is really time heavy, but really does seem to work, although I can't say if it spreads it or not. Doesn't seem to make it worse for my pond though.

Adam

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