ZeroTol® 2.0 Broad Spectrum Algaecide, Bactericide & Fungicide — 2.5 gal

ZeroTol 2.0 Broad Spectrum Algaecide, Bactericide & Fungicide, 2.5 Gallon

Waiting for a foliar disease to show visible symptoms before spraying means treating an infection that has already established, not preventing one. ZeroTol 2.0 kills plant pathogens through fast oxidation rather than a systemic mode of action, giving it a role in both proactive disease-prevention programs and knockdown treatment once an outbreak is underway.

Formulated with Hydrogen Peroxide 27.1% and Peroxyacetic Acid 2.0%, this 2.5 Gallon controls Botrytis, powdery mildew, downy mildew, Fusarium, Phytophthora, Pythium, and Rhizoctonia, and doubles as a disinfectant for greenhouse structures, benches, and watering systems. OMRI Listed with a zero-day PHI.

Key Features & Benefits

• Fast oxidative kill — no pathogen resistance development, unlike enzyme-targeting chemistries.
• Broad disease coverage — controls Botrytis, powdery mildew, downy mildew, Fusarium, Phytophthora, Pythium, and Rhizoctonia.
• OMRI Listed, zero-day PHI — approved for organic production and usable right up to harvest.
• Doubles as a facility disinfectant — also treats greenhouse structures, benches, and watering systems.
• Registered for indoor and outdoor use — covers vegetables, flowers, herbs, and nursery stock.

Who Should Use This

Growers running both a foliar disease-prevention program and routine facility sanitation, who want one 2.5 Gallon product covering both jobs, are the direct fit for ZeroTol 2.0.

About BioSafe Systems

BioSafe Systems, founded in 1998 and headquartered in Connecticut, pioneered peroxyacetic acid-based disease control products, including the ZeroTol line.

Frequently Asked Questions

What diseases does ZeroTol 2.0 control?

It controls Botrytis, powdery mildew, downy mildew, Fusarium, Phytophthora, Pythium, and Rhizoctonia, among others. See the product label for the complete disease list by crop.

Can ZeroTol 2.0 be used to disinfect greenhouse equipment?

Yes, beyond foliar disease control, it can disinfect greenhouse structures, benches, and watering systems. This lets one product cover both plant protection and facility sanitation.

How does the re-entry interval work for this product?

The REI is 1 hour for spray or fog applications and 0 hours for non-spray applications. Always confirm the interval against the specific application method being used.

When should this be applied for the best disease control?

Apply preventively on a regular schedule before disease pressure builds, since the oxidative mode of action works on contact rather than systemically. It can also be used curatively once symptoms appear, following the label rate for the target disease.