Ronald from Port Clinton, Ohio writes
Per RM43 43% Glyphosate Plus Weed Preventer's label: Do not apply directly to water, or to areas where surface water is present, or to intertidal areas below the mean high water mark. Do not apply near bodies of water including, fish pools, ponds, lakes or streams. If you need something that can be applied near or to aquatic sites, you can Rodeo Herbicide.
Answer last updated on: 05/01/2019