ZeroTol® HC Broad-Spectrum Algaecide / Bactericide / Fungicide – 1gal

Out of Stock

Additional information

Dimensions 4 × 8 × 11 in

About ZeroTol® HC Broad-Spectrum Algaecide / Bactericide / Fungicide – 1gal

BioSafe Systems® ZeroTol® HC Broad-Spectrum Algaecide / Bactericide / Fungicide

  • 1gal

ZeroTol® HC is a broad-spectrum algaecide, bactericide, and fungicide that effectively kills plant pathogens on contact, including Powdery Mildew, Botrytis, Pythium, and Fusarium. With no toxic residues and a 0-day preharvest interval, it is safe for use around people, pets, and wildlife.

Key Benefits:

  • Ideal for greenhouse, hydroponic, aquaponic, and landscape applications.
  • Promotes stronger roots and stems while supporting sustainable growing practices.
  • Disinfects surfaces, tools, and equipment.
  • Integrates seamlessly with conventional and biological pest management programs.
  • A versatile, no-residue disease control solution.

Active Ingredients

  • Hydrogen Peroxide: 5.34%
  • Peroxyacetic Acid: 1.36%

Application Information

  • Rate: 0.75 to 1oz per gallon.
  • PHI: 0 Days.
  • Applications:
    • Controls diseases on ornamentals in the landscape, houseplants, vegetables, berries, herbs, and other edible plants.
    • Disinfects greenhouse surfaces and equipment, including:
      • Glazing, plastic, pots, flats, trays, cutting tools, benches, work areas, walkways, floors, walls, fan blades, watering systems, coolers, storage rooms, structures, and equipment.
  • Controls: Algae, Powdery Mildew, Botrytis, and more.

ZeroTol HC Application Rates

Application Type Rate Instructions
Foliar Spray 25 mL/gallon Apply at 5-7 day intervals. Spray entire shoot, leaves, and stems down to media. Use 2 gallons of solution per 400 sq. ft.
Hydroponics and Aquaponics 10 mL/50 gallons Use higher label rate for established algae. Apply 1-time weekly.
Surface Treatment 25 mL/gallon Allow surfaces to remain wet with solution for 1 minute.

Greenhouse and Ornamentals Pathogens Controlled

Common Pathogens:

  • Downy Mildew
  • Powdery Mildew
  • Leaf Blight
  • Anthracnose
  • Botrytis*
  • Xanthomonas*
  • Rhizoctonia*
  • Leaf Spot*
  • Pseudomonas*

Additional Pathogens:

  • Brown Spot
  • Dollar Spot
  • Summer Patch
  • Copper Spot*
  • Strip Smut*
  • Take-All Patch*
  • Fairy Ring*
  • Pink Snow Mold*
  • Pythium*
  • Phytophthora*
  • Fusarium*

(*Indicates additional pathogens controlled.)


Product Specifications

  • Appearance: Liquid
  • Color: Clear, colorless
  • Odor: Vinegar-like
  • pH: 1.5
  • OMRI Listed®
  • Signal Word: Danger

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