How to rid pond of tall grasses?

Asked August 22, 2013, 8:41 AM EDT

What do you know regarding Diuron 80 and using it in a pond or lake to get rid of tall grasses?

Hamilton County Ohio

1 Response

Formulae of Diuron are not approved for aquatic applications. To quote the 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 contaminate water when cleaning equipment or disposing of equipment washwaters or rinsate.

Applications outside of label guidelines are a violation of federal law, so I absolutely do not recommend applying this at the banks of a pond.

Do you know the species of grass that's giving you trouble? Depending on the species, formulae of imazapyr may be the most effective herbicide for aquatic grasses and relatives.