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It's the trapperman of pond construction and management.

I wouldn’t pay what they ask for aqua roundup Especially if you have the regular. Pick a few sunny warm days and spray. With that much water no danger of over spray having enough concentration to harm fish.
As for crappie I disagree with you on ha them in a pond. Lot of fun for kids. Plus add food for the bass. As for taking bsss if you fish half a day and only catch 10-12 in bass you need to take some out

Not to hijack but will this work on sweet gum around the edge as well

Not the best, but will work, and probably a better choice tight to pond.

This would be a great job for goats. I offer goat grazing for projects like this, chemical free and pretty effective.

That was my thought as well. Just yesterday, I was talking to a friend of mine who uses goats and geese to keep the weeds and willows controlled around his pond. It gives it a manicured look.

Keith

Gum can be tough to get a good burn down on gum if doing a foliar spray. Try adding a bit of surfactant to the mix. Dawn soap is a cheap option. But hack and squirt works better than foliar.