Is there such thing as a salvinia herbicide?

Herbicide - CropCare Reglone® Active Constituent: 200 g/L Diquat present as Diquat Dibromide Monohydrate Solvent: Not stated

Rate: 400 mL plus 150 mL Agral® per 100L water Application method: Spray to wet weeds thoroughly. Approx 1 mL Reglone per square metre Withholding period: 10 days for human consumption, livestock watering or irrigation purposes. Comment: Desiccant. Very rapid brownout. Use on moving waters, or where Salvinia growing in mud. Information taken from - "The Far North Coast Weeds" is the Local Control Authority under the Noxious Weeds Act 1993 responsible for the control of Noxious Weeds in the Ballina, Byron, Copmanhurst, Kyogle, Lismore, Richmond Valley and Tweed Local Government Council areas.