Thank you! I'm embarrassed that I spent lots of time looking at the site linked in this forum and this is clearly sago pondweed.
So, it looks like Reward is one of the top recommended herbicides. I assume this has no copper, so do you believe it is OK for me to use this with my trout coming in a few weeks? I have been lazy with removal by hand/rake - I think this gives me motivation to get out there and whack what I can. (I'm aware of the potential for a d.o. issue if I kill too much and it is decomposing)
