Will Roundup Kill Bullrushes?

Thoroughly wetting bulrush plants with Glyphosate 5.4 and a surfactant allows the herbicide to travel throughout the plant, killing both the roots and vegetative portions.

What herbicide will kill cattails?

Killing cattails is a must to keep the growth under control. The best way to kill cattails is by using an aquatic approved herbicide with the active ingredient, glyphosate. Glyphosate is the active ingredient in Round Up, but Round Up is not approved for aquatic use and could harm your fish.

Will Roundup hurt a pond?

Approved and Unapproved Herbicides. ... RoundUp®, a commonly used glyphosate herbicide is not approved for use in ponds. There are other glyphosate herbicides which are approved for aquatic sites.