OxiPhos

BioSafe · Hydrogen Peroxide · EPA Reg 70299-22 · Insecticide Document last checked 2026-05-30

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. 70299-22 →

OxiPhos California is a fungicide/bactericide designed to control plant pathogens on both indoor and outdoor crops. The active ingredient is Mono- and di-potassium salts of phosphoric acid at 27.1%. It is effective against a variety of diseases including root rot in citrus, downy mildew in cole crops, cucurbit crops, hops, and leafy vegetables, as well as fly speck and sooty blotch in pome fruit, late blight and pink rot in potatoes, and botrytis storage rot in sugarbeet. Application methods vary by crop, typically involving either a soil drench for root diseases or a foliar spray for foliar diseases. When used as a foliar spray, it is generally applied as a dilute spray (not exceeding 2.5% w/v or 1:40 concentration in water) to ensure complete coverage of foliage. Users should be aware that the product can cause crop injury if applied at higher rates or under certain environmental conditions, such as high temperatures or after rain. Always follow specific directions for the target crop and disease to ensure efficacy and minimize risk.

Pests covered (10)

Root Rot (Phytophthora spp.)Downy MildewPowdery MildewBacterial SpotDowny Mildew, Powdery MildewFly Speck, Sooty BlotchLate Blight (Phytophthora infestans)Pink Rot (Phytophthora erythroseptica), Late Blight (Phytophthora infestans), Pythium spp.Botrytis Storage RotScale Insects

Areas treatable (12)

Citrus CropsCole CropsCucurbit CropsFruit VegetablesGrapesHopsLeafy VegetablesPome FruitPotatoPotato PostharvestSugarbeetNurseries, Greenhouses, Shadehouses, and Ornamental Plants

How to treat each type of area 13

Citrus Crops

Target pest	Location	Rate	Unit	Dilution	Label notes
Root Rot (Phytophthora spp.)	Outdoor	0.5-1.0 gallon	per 100 gallons of water	1:100-1:200	Apply as a seedling drench.

Cole Crops

Target pest	Location	Rate	Unit	Dilution	Label notes
Downy Mildew	Outdoor	2.0-5.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; ensure complete coverage of foliage. Repeat applications on a 7-14 day interval.

Cucurbit Crops

Target pest	Location	Rate	Unit	Dilution	Label notes
Downy Mildew	Outdoor	2.0-5.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; ensure complete coverage of foliage. Repeat applications on a 7-14 day interval.
Powdery Mildew	Outdoor	5.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; ensure complete coverage of foliage. Repeat applications on a 7-14 day interval.

Fruit Vegetables

Target pest	Location	Rate	Unit	Dilution	Label notes
Bacterial Spot	Outdoor	4.0-5.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; ensure complete coverage of foliage. Repeat applications on a 7-14 day interval.

Grapes

Target pest	Location	Rate	Unit	Dilution	Label notes
Powdery Mildew	Outdoor	5.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; ensure complete coverage of foliage. Repeat applications on a 7-14 day interval.

Hops

Target pest	Location	Rate	Unit	Dilution	Label notes
Downy Mildew	Outdoor	5.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; ensure complete coverage of foliage. Repeat applications on a 7-14 day interval.

Leafy Vegetables

Target pest	Location	Rate	Unit	Dilution	Label notes
Downy Mildew, Powdery Mildew	Outdoor	1.0-5.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; ensure complete coverage of foliage. Repeat applications on a 7-14 day interval.

Pome Fruit

Target pest	Location	Rate	Unit	Dilution	Label notes
Fly Speck, Sooty Blotch	Outdoor	1.3-5.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; ensure thorough spray coverage.

Potato

Target pest	Location	Rate	Unit	Dilution	Label notes
Late Blight (Phytophthora infestans)	Outdoor	4.0-10.0	quarts/A.	2.5% w/v (1:40)	Foliar spray; apply once every 7-14 days depending on disease conditions. Can be rotated with other fungicides for Late Blight.

Potato Postharvest

Target pest	Location	Rate	Unit	Dilution	Label notes
Pink Rot (Phytophthora erythroseptica), Late Blight (Phytophthora infestans), Pythium spp.	Outdoor	1.28-2.5	oz./ton of potatoes	0.25-1.0 gallon of water per ton	Postharvest spray; ensure complete and even coverage. Use higher rates when disease pressure is detected due to wet conditions in the field.

Sugarbeet

Target pest	Location	Rate	Unit	Dilution	Label notes
Botrytis Storage Rot	Outdoor	2.56-12.8	oz./ton	0.25-0.5 gallons of water per ton	Postharvest spray; apply before storing into cool, well-ventilated storage.

Nurseries, Greenhouses, Shadehouses, and Ornamental Plants

Target pest	Location	Rate	Unit	Dilution	Label notes
Downy Mildew	Both	4.0	quarts per 100 gallons of water	1:100	Foliar spray; ensure thoroughness of all leaves. Use higher rate when disease pressure is detected.

Mixing instructions 2

For pests	Location	Per	Finished strength	Label notes
Root Rot (Citrus)	Outdoor	0.5-1.0 gallon	1:100-1:200	Mix as a seedling drench.
Foliar diseases	Outdoor	2.0-5.0 quarts/A.	2.5% w/v (1:40)	Apply as a dilute spray.

Worker safety

Re-entry interval (REI) 0

PPE required Long-sleeved shirt and long pants; Waterproof gloves; Shoe socks; PPE required per Worker Protection Standard (WPS) for agricultural pesticides (40 CFR 170.24(a)(4-5).

Timing & weather

Evaluate crop injury 3 days after rain event.
Evaluate crop injury 7 to 10 days after application for adverse effects.

Use restrictions 5

Do not apply to plants that are heat or moisture stressed.
Do not apply this product in a manner inconsistent with its label.
Do not apply this product through an irrigation system unless the directions on the label allow.
Do not apply this product in a way that will contact workers or other persons, directly or through drift.
Do not store in a manner where cross-contamination with other pesticides or fertilizers could occur.

Label SDS

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Document text and citations

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Reference only. Always read and follow the most current EPA-approved label on the product container. State and local restrictions may apply that are not reflected in this digitised copy. Verify the EPA registration number and revision date before use.