Arber Organic Fungus and Disease Control for Roses and Flowers, Ready to Spray

Organic. Ready-to-Spray. Keep roses and flowering plants looking their best with this easy, hose-end fungicide powered by beneficial bacteria. It helps prevent and control common diseases like powdery mildew and black spot, while leaving no harmful residues—safe for use around kids, pets, and pollinators when used as directed.

Did You Know? The active ingredient is a naturally occurring bacterium, Bacillus amyloliquefaciens strain F727, which forms a protective shield on leaves and roots to suppress fungal pathogens and support overall plant health.

• Form: Ready-to-Spray (hose-end sprayer included; no mixing required)
• Size: 16 fl oz bottle with reusable hose-end sprayer
• Organic Input Status: OMRI Listed for organic gardening
• Active Ingredient: Bacillus amyloliquefaciens strain F727 (cells & spent fermentation media) 96.4%; other ingredients 3.6%
• For Use On: Roses, annuals, perennials, container plants, and other flowering/fruiting ornamentals
• Controls/Suppresses: Powdery mildew, black spot, leaf spot, blight, gray mold (Botrytis), rust, root rot, and more
• Coverage: Apply entire 16 oz bottle to treat up to ~12,000 sq ft (typical garden conditions)
• How to Apply: Attach sprayer to hose and bottle, set dial to “ARBER,” and spray foliage until evenly wet (top & underside of leaves). Reapply about every 14 days or as needed.
• Use Timing: Start at first sign of disease or as a preventative during high-risk periods
• Garden-Friendly: No harsh synthetic chemicals; safe for kids, pets & bees when used as directed