Apply at a rate of 1 to 5 ppm on a continuous basis during the spawning/breeding season.
The various VeliGON compounds differ in molecular weight and cationic charge density. Choice of the most suitable product and determination of the application rate required for local water treatment systems is usually based on local veliger monitoring and optimal clarification effect in an on-site bench-scale test (jar test) under local water and site conditions.
DMDAAC has been shown to have a median lethal concentration LC50 at 96 hr for adult zebra mussels at between 1.5 and 3.0 mg L-1 (ppm) (Blanck, Mead, and Adams 1996).
The following tabulation lists the treatment rates for VeliGON formulatons:
