BLOSSOM PROTECT: Proven, Residue-Free Protection for Apples and Pears

The Microbial Guardian: BLOSSOM PROTECT has long been trusted by growers for effective, residue-free protection in apples and pears and other pome fruits. Powered by the beneficial microorganism Aureobasidium pullulans, it combines sustainability with market-leading food safety standards, fully aligned with ZERYA principles for no pesticide residues and certified for organic agriulture.

Technical Characteristics and Mode of Action

BLOSSOM PROTECT is a highly effective biological bactericide and fungicide, part of the AP PROTECTORS family, an innovative line of biopesticides developed by SAN Agrow.

• Active Ingredient: Powered by nature’s own defender — the microorganism Aureobasidium pullulans, featuring two exclusive strains (DSM 14940 and DSM 14941)
• Concentration: Water-dispersible granules (WG) delivering 5 × 10⁹ CFU/g (colony-forming units per gram)
• Mode of Action: BLOSSOM PROTECT works through natural competition for space and nutrients, preventing pathogens from colonizing plant and fruit tissues. This physical-biological mechanism eliminates the risk of resistance development.

Proven Effectiveness in Orchards

BLOSSOM PROTECT delivers essential protection at two critical stages of the crop cycle for pome fruits, with the major advantage of being residue-free, requiring no MRL, and no safety interval.

1. Fire Blight Control (Erwinia amylovora)

This destructive disease attacks blossoms and can devastate entire orchards.

• Target: Fire blight (Erwinia amylovora)
• Timing: Preventive application during flowering (BBCH 61-67), from the opening of the first flowers until the end of the flowering, when the majority of petals have fallen
• Technical dose: 0.75 kg/ha per meter of canopy height

2. Storage Disease Control

Pre-harvest applications are key to preserving fruit quality and extending shelf life after harvest.

• Targets: Storage rot fungi including Botrytis cinerea or Penicillium expansum.
• Timing: During ripening (BBCH 81–89), with up to four treatments starting five weeks before harvest
• Recommended Dose: 0.5 kg/ha per meter of canopy height
• Post-Harvest Benefit: Continues to protect fruit under cold storage and ultra-low oxygen (ULO) conditions, reducing post-harvest losses and improving shelf life

Adapted to ZERYA “No Pesticide Residues”

BLOSSOM PROTECT is the ideal solution for growers aiming for ZERYA certification, which requires that any active substance residue remains below the analytical detection limit (<0.01 ppm).

• Full Compliance: Directly supports the ZERYA goal of residue-free fruit, increasingly demanded by retailers and health-conscious consumers
• Sustainability: Perfect for Integrated Pest Management (IPM), safe for bees and pollinators
• Market Advantage: Guarantees food safety, improves fruit quality, and provides a clear competitive edge in markets that value the ZERYA seal

By integrating BLOSSOM PROTECT into your crop protection strategy, you safeguard your orchard and consistently deliver apples and pears that meet the highest standards of quality and safety.

Download the full SAN Agrow BLOSSOM PROTECT brochure here: