Water Stargrass

Water Stargrass (Heteranthera dubia) is grass-like plant with thin branching dark-green stems and alternate leaves with no midvein..  It can grow up to 6 feet long and can form large floating colonies. Flowers rise above the surface and are bright yellow, star-shaped, with 6 narrow petals.

 

 

 

Management Options


Mechanical Options

Water Stargrass can be controlled through cutting and raking, dyes or fertilizers or barriers.

Information on Mechanical Treatment of Aquatic Vegetation

 

Biological Options

Grass carp will consume Water Stargrass and are excellent at controlling it.

Information on Biological Treatment of Aquatic Vegetation


 

Chemical Options

The active ingredients that have been successful in treating Water Stargrass include: Endothall (E), Fluridone (E), Glyphosphate (E), Imazamox (G) and Penoxsulam (E). E = excellent, G = good

Information on Chemical Treatment of Aquatic Vegetation

 

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