I hand spray with a little 2 gallon sprayer. Mix Ag concentrate at about four ounces in the 2 gallons. I spray right from the waters edge to the grass edge twice a year with no problems. Floating island and lily pads were not effected from any over spray or run off. I really think if I even just dumped the four ounces into the pond it would not kill any weeds other than the ones right next or around the spill.

The scary part of roundup transorb is the dihydrogen monoxide or DHMO. This crap is really really bad for every living thing.

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7/8th of an acre, Perch only pond, Ontario, Canada.