Green-Shield® Disinfectant & Algicide is a simple but cost effective way to control unwanted plant pathogens and algae. It is the first step in a successful disease management program. Labeled for use in greenhouses, nurseries, landscapes and interiorscapes on work areas, benches, tools, containers, walkways, floors and evaporative cooling pads. Green-Shield® controls fungal, bacterial and viral plant pathogens and algae.