Aquashade has been around for a long time!
ABSTRACT One approach to controlling growth of aquatic plants has been to reduce light penetration by the application of light attenuating dyes. Eicher (1947) reported that nigrosine was effective in controlling curley leaf pondweed. Buglewicz (1972) tested the effects of various brown and blue dyes in an eutrophic Nebraska pond. He reported that Potamogeton spp. […]