BotryStop® WP is a non-chemical, preventative biological fungicide powered by the naturally occurring beneficial fungus Ulocladium oudemansii (U3 strain). Designed for proactive disease management, BotryStop WP colonizes dead, dying, and senescent plant tissue, outcompeting plant pathogens for space and nutrients. By blocking disease establishment before spores can infect healthy plant cells, it provides protection against Botrytis cinerea (gray mold), Sclerotinia, Monilinia, and brown rot with zero harvest residue risks.
Key things we want you to know
Active Ingredient: Ulocladium oudemansii strain U3
Re-entry & Harvest Window: 4-Hour Restricted Entry Interval (REI) | 0-Day Pre-Harvest Interval (PHI)
OMRI Listed: Non-chemical biocontrol approved for organic production in greenhouse, indoor grow, high-tunnel, and open-field environments.
Key Product Highlights
- Competitive Exclusion Mode of Action: Preemptively occupies blossom, foliage, and fruit attachment scars so pathogenic fungal spores cannot germinate or colonize.
- Zero Pathogen Resistance: Because it relies on spatial competition rather than chemical toxicity, target fungi cannot develop resistance over time.
- Residue-Free Crops: Leaves no synthetic chemical residues, making it ideal for late-stage bloom applications on berries, grapes, cannabis, and fruiting crops.
- IPM Compatible: Integrates into biological pest management protocols alongside beneficial insects and organic fertilizers.
Target Diseases & Crop Compatibility
Target Diseases: Gray Mold (Botrytis cinerea), Brown Rot, Sclerotinia, and Monilinia species.
Target Crops: Berries, grapes, fruiting vegetables, tree fruit, ornamental flowers, greenhouse crops, and indoor living soil grows.
Suggested Application
BotryStop WP is a preventative control agent and must be applied prior to initial disease infection for maximum protection.
- Foliar Application Rate: Mix 2-4 lbs per acre (3 lbs per acre is standard) with sufficient water to achieve full, uniform canopy coverage.
- Spray Quality: Apply using fine spray nozzles to ensure complete coverage of early flowers, petioles, and dense canopy sites.
- Surfactants & Spreaders: A non-ionic surfactant or spreader sticker is recommended to enhance droplet adhesion and coverage on waxy foliage or blossoms.
- Irrigation Restriction: Do not apply BotryStop WP through chemigation or automated irrigation systems.
- Living Soil Integration: Pair with high-biology media like KIS Commercial Growers Mix and manage root hydration with Blumat Digital Moisture Meters.
Safety & Handling
Store in a cool, dry place at or below 68°F (20°C). Keep packaging tightly sealed in its original container. Avoid freezing.
- Room Temperature Storage (68°F): Shelf life up to 12 months.
- Refrigerated Storage (40°F): Extends shelf life up to 18 months.