Agri-Mycin is a protectant bactericide designed to combat difficult diseases such as fire blight in apples, pears, tomatoes, peppers, celery and tobacco. Agri-Mycin is compatible with most pesticides and offers 3-4 days of dependable protection when applied correctly. Streptomycin sulfate 22.4% (equivalent to 17% streptomycin) OMRI Listed product – for organic use Major Crop/Use Apples, pears – fire blight Celery – bacterial blight Potatoes – blackleg and soft rot Tobacco – blue mold and wildfire Tomatoes and peppers – bacterial spot