Plant growth and their successive stages in an aquatic habitat are natural phenomena that have occurred for millions of years evidenced by present geological formations. Thus, one anticipates that small and large impoundments will eventually support a growth of aquatic plants. The kind of plant succession within a given impoundment depends on water depth, turbidity, ferility, composition of plant species, and presence or absence of plant pests and pathogens. Recently, man has by various means attempted to inhibit or manage obnoxious aquatic plant populations.