COMPOSITIONS FOR THE CONTROL OF ALGAE IN COMMERCIAL HORTICULTURE

摘要

New, highly effective and long-lasting algaecidal compositions of aqueous solutions of one or more organic acids and a source of metal ions are provided. The preferred acids are acetic, propionic, benzoic and sorbic. The preferred source of metal ions are the salts and complexes of the organic acids. The concentrated product is diluted with water to obtain a composition suitable for spray application to a surface for control of algae. The preferred embodiment kills surface algae where it is applied and provides residual control for six weeks or longer post application.