The use of barley straw for algae control has received a lot of publicity in recent years. It is now common to find small barley bales being sold in nurseries and garden shops for use in water gardens and small pools to control algae. This publication discusses the research done on barley straw and the EPA's view on using it. It also provides information for when and how to use barley straw.
Last Review Date - 9/1/2015