Physan 20 is an algaecide, fungicide, bactericide and virucide with an
incredibly wide range of applications. Use Physan 20 to control algae
anywhere in the greenhouse including floors, walls, walkways, benches,
trays, pots, wicks, capillary matting and buckets. Use it on algae in
fountains, decorative water displays, pools and evaporation coolers.
Physan 20 can be used to treat a variety of diseases affecting lawns,
turf, and grass, including Fairy Ring, Dollar Spot, and toadstools. Not
recommended for edible crops.