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Vallisneria (Vallisneria americana) is also called Eelgrass, for its long, thin ribbon like leaves that can grow up to 3 or 4 feet and are ½ to ¾ inches wide. It is often found in flowing water. It bears its flower and fruit at end of a long thread-like stem that is often coiled.
Mechanical Options
Vallisneria 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 vallisneria and are good at controlling it.
Information on Biological Treatment of Aquatic Vegetation
Chemical Options
The active ingredients that have been successful in treating vallisneria include: Diquat (F), and Endothall (F). E = excellent, G = good, F = fair
Information on Chemical Treatment of Aquatic Vegetation
Return to the submerged vegetation page