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ZeroTol HC

BioSafe · Hydrogen Peroxide · EPA Reg 70299-16 · Insecticide Document last checked 2026-05-30

About this product

Active ingredient Hydrogen Peroxide
Manufacturer BioSafe
Category Insecticide

Full details for ZeroTol HC

Source product label ↗ Open the catalog source label while the local copy is reviewed. Verify the product name, EPA registration number, and revision before use. Source safety data sheet ↗ Open the catalog source SDS while the local copy is reviewed. Verify the exact product and revision before relying on it. EPA registration data Reg. 70299-16 — registry reference, signal word and status.

Applicator discussion

Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.

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According to the label From the product label

These details were extracted from this product's label PDF. The label is the law. Confirm every rate, site, restriction and safety requirement against the label before mixing or applying. Check for a state supplemental label; a product may be restricted or prohibited in a state or site even when a rate appears below. · EPA registration data for Reg. 70299-16 →

ZeroTol HC is a fungicide/bactericide used to control various plant pathogens, including fungi, bacteria, algae, and mold. It is formulated with 5.34% Hydrogen Peroxide and 1.36% Peroxyacetic Acid. This product is designed for use on various plant surfaces, including leaves, stems, shrubs, and trees, as well as turf and hydroponic systems. It can be applied via spot treatment, foam application, foliar spray, or as a preventative treatment. For turf, it can be used to control algae and fungi. For hydroponic systems, it helps prevent root rot caused by water-borne and water-transmitted pathogens. Note that this product is NOT approved for use in California for certain applications. When handling, be aware that the product is corrosive and can cause irreversible eye damage. It may also cause skin irritation. Always use appropriate personal protective equipment and follow mixing and application instructions carefully. Do not apply if rain is expected within 24 hours unless the product is intended to be washed into a drainage system. Always read the full label for specific site restrictions and safety precautions.

Pests covered (3)
fungi, bacteria, algae, mold, mildewalgae and fungiroot rot (water-borne/water-transmitted pathogens)
Areas treatable (3)
plant surfaces (leaves, stems, shrubs, trees)turfhydroponic and aquaponic systems

Application instructions from the label 3

plant surfaces (leaves, stems, shrubs, trees)

Spot treatment, foam, or foliar spray

Target pest
fungi, bacteria, algae, mold, mildew
Location
Outdoor
Dilution
Refer to mixing instructions

turf

Use on well-established lawns

Target pest
algae and fungi
Location
Outdoor
Dilution
Refer to mixing instructions

hydroponic and aquaponic systems

Not approved for use in California

Target pest
root rot (water-borne/water-transmitted pathogens)
Location
Indoor
Dilution
1-2 oz per 50 gallons

Mixing instructions 6

For pests Amount Per Label notes
spot treatment Apply directly over the infested area
foam application Use a foaming agent like BioSafe BioBreaker
foliar treatment Apply to plant surfaces
non-hose end sprayer (initial application) 1.150 to 0.85 fl. oz. per gallon of water Do not reuse or refill container
non-hose end sprayer (weekly preventative) 1.200 or 0.64 fl. oz. per gallon of clean water
hydroponic/aquaponic 1-2 oz per 50 gallons Add to water solution

Worker safety

PPE required Avoid contact with eyes and skin. Use appropriate protection to prevent eye damage and skin irritation.

Timing & weather

Use restrictions 4