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Water Stargrass (Heteranthera dubia) is a 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.
Water Stargrass can be controlled through cutting and raking, dyes, fertilizers, or barriers.
Information on Mechanical Treatment of Aquatic Vegetation
Grass carp will consume Water Stargrass and are excellent at controlling it.
Information on Biological Treatment of Aquatic Vegetation
The active ingredients that have been successful in treating Water Stargrass include: Endothall (E), Fluridone (E), Glyphosate (E), Imazamox (G), and Penoxsulam (E). E = excellent, G = good.
Information on Chemical Treatment of Aquatic Vegetation
Return to the submerged vegetation page
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