I wish Kelly Duffie would chime in, or another herbacide guru. I've been dealing with EUM in my pond for a few years now, and want to kill it, but not some of the other plants in there. It was suggested that I use RENOVATE OTF, and possibly conduct a split-treatment; one day after another. But, that would all depend on how static the water-column is on the initial day of treatment in my pond. 48-hrs of contact-time, at a lethal/labeled concentration, is the optimum scenario for RENOVATE OTF. If such can be accomplished with one dosing, then so be it.

It depends on how static your water is. I think if you could drop a dye pack in there, it might give you an idea if the water is static or moving (and which way it was moving if it wasn't apparent).

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).