Product Details Marrone Bio Stargus Stargus Biofungicide controls key diseases including white mold, downy mildew, Botrytis, multiple leaf spots, and more. Apply 2-4 times at 7-10 intervals for extended efficacy throughout the season. Multiple modes of action (FRAC BM02) make it a great resistance management tool. Active Ingredient: Bacillus amyloliquefaciens strain F727