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You are here: Home > Pond Algae Control > Salvinia Salvinia
![]() Common salvinia (Salvinia minima) is native to South American. It is a small free-floating plant that grows in clusters and develops into dense, floating mats or colonies in quiet water, undisturbed by wave action. The floating leaves of salvinia are more or less round (1/2 to 3/4 inch) with a distinct midrib along which the leaf may fold forming a cup-shaped appearance. Giant salvinia (Salvinia molesta) is native to South American. It is a small free-floating plant that grows in clusters and develops into dense, floating mats or colonies in quiet water, undisturbed by wave action. The floating leaves of giant salvinia are oblong (0.5 to 1.5 inches long) with a distinct midrib along which the leaf may fold forming a compressed chain-like appearance. Giant salvinia has sporangia but are thought to reproduce only by fragmentation. Giant salvinia can double in size in 4 to 10 days under good conditions. Dense salvinia colonies provide habitat for micro invertebrates but if salvinia completely covers the surface of a pond it will cause dissolved oxygen depletions and fish kills. These colonies will also eliminate submerged plants by blocking sunlight penetration. Salvinias have no known direct food value to wildlife and is considered an exotic and highly undesirable species. Salvinia Control OptionsMechanical/Physical Salvinia can be removed by raking or seining it from the pond's surface but will re-establish from any remaining fragments. Biological Grass carp will seldom control aquatic vegetation the first year they are stocked. They will consume salvinia but are usually not effective for total control. Grass carp stocking rates to control salvinia are usually in the range of 7 to 15 per surface acre or higher. Chemical The active ingredients that have been successful in treating salvinia include diquat (G), fluridone (E), and glyphosate (G). E = excellent, G = good. Resources: Department of Wildlife and Fisheries Sciences, Texas A&M University You are here: Home > Pond Algae Control > Salvinia Click Here to Learn More About Your Koi Health | Click Here For Build A Koi Pond Homepage | Click Here to Learn About Koi Under Stress | Click Here to Find a Koi Vet Near You | Click Here for Koi Care Products | Click Here for Koi Health and Wellness Center | Tweet Products to Control SalviniaWhiteCap is a fluridone compound and has been effective on coontail. It is a broad spectrum, systemic herbicide. Systemic herbicides are absorbed and move within the plant to the site of action. Systemic herbicides tend to act more slowly than contact herbicides. ![]() Redwing is a liquid diquat formulation that has been effective on coontail. It is a contact algaecide and herbicide. Contact herbicides act quickly and kill all plants cells that they contact. ![]() The Only Koi Book You Will Ever Need! ![]() Whether you are a beginner or a Koi pond specialist this ebook contains all you need to know to have a beautiful, optimal ecosystem, with healthy pond fish! ~Price $29.99 ![]() | |
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