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Zerotol 2.0
10/26/25
Zerotol 2.0, manufactured by BioSafe Systems, is a 3-in-1 fungicide, algaecide, and bactericide that provides foliar and root disease control on professional turfs and landscapes.
Formulated with a stable and strong peroxyacetic acid chemistry, which provides a faster surface cleaning against bacteria from the propagation to production phase of plants.
Zerotol 2.0 contains a fast disease eliminating process against a broad-spectrum of pathogens, algae, and disease like crown rot within 5 days.
Tools Needed
To use Zerotol 2.0, you will need a hose-end sprayer or handheld pump sprayer. It may also be applied through a sprinkler (center pivot, lateral move, end tow, side (wheel) roll, traveler, solid set or hand move) or drip-type irrigation systems. To apply as an aerosol/fog you will need an approved commercial cold or thermo fogging equipment.
How to Use
- Step 1: Determine how much Zerotol 2.0 to use by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet then multiply them together (length X width = square footage). For acreage, take the square footage and divide it by one acre (square footage / 43,560 sq. ft. = acres). To treat listed fruiting vegetables diseases, use a 1:100 dilution. To prevent diseases on listed fruiting vegetables, use 1:200 to 1:400 dilution. To clean hard, non-porous surfaces like benches and work areas apply 1:50 or 2 1/2 fl. oz. of product per gallon of water. For more specific application rates and restrictions refer to the product label.
- Step 2: To mix in drip-irrigation system, use a separate container. If using a handheld pump sprayer then use the following step in the tank and not a separate container. Fill the container or spray tank with half the amount of water, add measured amount of Zerotol 2.0, then pour the remaining half of water in. Agitate the container or spray tank until the mixture is dissolved. Fill your drip-irrigation system according to its product label.
- Step 3: When using sprayer equipment, spray the top and bottom of plants until wet, but not to the point of runoff. When using this product to clean non-porous surfaces then spray until the point of runoff.
Where to Use
Apply Zerotol 2.0 on indoor, greenhouse, and outdoor-grown: ornamental plants, flowering plants, bedding plants, nursery stock, landscape plants, turf, and all agricultural crops including food crops.
When to Use
Use Zerotol 2.0 up to and including the day of harvest for listed crops to prevent and cure diseases. Spray plants early in the morning or evening to allow enough time for the product to dry. This product may be applied when present algae is found on non-porous surfaces and when you wish to prevent listed pathogens and diseases from them.
Safety Information
Zerotol 2.0 is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.
Keep people and pets out of the treated area until sprays have dried.
Special Considerations
Use Zerotol 2.0 spray solution the same day it is prepared, do not store and reuse mixed spray solution.
| Availability | Online |
| Restricted Use | No |
| Shipping Restrictions * = not registered** = restricted use | 2.5 Gallon: VT** |
| Brand | BIOSAFE SYSTEMS |
| Keith's Pro Tips | "Before treating large numbers of plants, test ZeroTol 2.0 or tank mixes of ZeroTol 2.0 and other pesticides or fertilizers at labeled rates on a separate set of plants and observe for symptoms of sensitivity prior to use. Symptoms on foliage include yellow or brown spotting, “burned” tips and/or yellow or brown scorching along the leaf edges." |
| Product Drawbacks | Zerotol 2.0 cannot be tank mixed with copper or other pesticides containing metals at a dilution rate stronger than 1:100. |
| Target Pests | Algae, Alternaria, Anthracnose, Aphanomyces, Black Spot, Botrytis (grey mold), Downy Mildew, Erwinia, Fusarium (root rot), Leaf Spot, Phytophthora (blights, rots), Plasmopara, Powdery Mildew, Pseudomonas, Pythium, Rhizoctonia, Rust, Scab, Smut, Thielaviopsis, Uncinula (powdery mildew), Xanthomonas, Wilts, Blights, Ralstonia solanacearum (brown rot, bacterial wilt), Sclerotinia sclerotiorum (white mold), Tobacco mosaic virus. |
| Application Equipment | Backpack Sprayer, Drip-Type Irrigation System, Pump Sprayer, Thermal Fogger |
| Application Methods | Broadcast Spray, Drench Treatment, Injection, Spot Treatment |
| Active Ingredient | Hydrogen Peroxide 27.10% Peroxyacetic Acid 2.0% |
| Product Type | Fungicide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Rate | To treat listed fruiting vegetables diseases, use a 1:100 dilution. To prevent diseases on listed fruiting vegetables, use 1:200 to 1:400 dilution. To clean hard, non-porous surfaces like benches and work areas apply 1:50 or 2 1/2 fl. oz. of product per gallon of water. |
| Shelf Life | Zerotol 2.0 will last up to 3 years when stored in a cool, dry well-vented area, away from direct sunlight. |
| Yield | 2.5 gallons of Zerotol 2.0 will cover up to 2 acres. |
| Use Sites | Indoors, Outdoors |
| Time to Kill | Zerotol 2.0 eliminates diseases within 5 to 7 days. |
| Incompatible Home Siding | Brick, Hardie Plank, Stone Veneer, Stucco, Wood, Vinyl |
| EPA Registration # | 70299-12 |
| Restricted Use | No |
|---|---|
| Availability | Online |
| Signal Word | DANGER |
| Keith's Pro Tip | "Before treating large numbers of plants, test ZeroTol 2.0 or tank mixes of ZeroTol 2.0 and other pesticides or fertilizers at labeled rates on a separate set of plants and observe for symptoms of sensitivity prior to use. Symptoms on foliage include yellow or brown spotting, “burned” tips and/or yellow or brown scorching along the leaf edges." |
| Target Pests Multi | Alternaria, Anthracnose, Bacterial Wilt, Black Spot, Blights, Botrytis Gray Mold, Brown Rot, Downy Mildew, Erwinia, Fusarium, Leafspot, Phytophthora Blight, Phytophthora Rot, Powdery Mildew, Pseudomonas, Pythium, Rhizoctonia, Rust, Scabs, Smuts, Thielaviopsis, Tobacco Mosaic Viru, White Mold, Wilt, Xanthomonas, Algae |
| Time to Kill | Zerotol 2.0 eliminates diseases within 5 to 7 days. |
| Chemical Type | Fungicide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Methods | Broadcast Spray, Drench Treatment, Injection, Spot Treatment |
| Product Drawbacks | Zerotol 2.0 cannot be tank mixed with copper or other pesticides containing metals at a dilution rate stronger than 1:100. |
| Active Ingredient | Hydrogen Peroxide 27.10% Peroxyacetic Acid 2.0% |
| Application Equipment | Backpack Sprayer, Drip-Type Irrigation System, Pump Sprayer, Thermal Fogger |
| Mix Rate | To treat listed fruiting vegetables diseases, use a 1:100 dilution. To prevent diseases on listed fruiting vegetables, use 1:200 to 1:400 dilution. To clean hard, non-porous surfaces like benches and work areas apply 1:50 or 2 1/2 fl. oz. of product per gallon of water. |
| Use Sites | Indoors, Outdoors |
| Yield | 2.5 gallons of Zerotol 2.0 will cover up to 2 acres. |
| EPA Registration No. | 70299-12 |
| Shelf Life | Zerotol 2.0 will last up to 3 years when stored in a cool, dry well-vented area, away from direct sunlight. |
| Children or pets? | Yes |
| Property Characteristics | None |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.




