ZeroTol HC — Broad-Spectrum Algaecide, Bactericide & Fungicide

ZeroTol HC is a contact algaecide, bactericide, and fungicide from BioSafe Systems formulated with sustainable peroxycompound chemistry. It kills plant pathogens on contact with no toxic residues and a 0-day preharvest interval — safe for use around people, animals, pets, birds, and wildlife.

ZeroTol HC's chemistry is compatible with both conventional and biological pest management programs. Because it leaves no residues, biological applications that protect plants through colonization can follow immediately after treatment.

Key Features

• Broad-spectrum contact activity against powdery mildew, botrytis, pythium, fusarium, and algae
• No toxic residues — sustainable peroxycompound chemistry breaks down to water and oxygen
• 0-day preharvest interval (PHI) | 0-hour REI
• Promotes stronger roots and stems
• Compatible with biological IPM programs
• Safe for use around people, animals, pets, birds, and wildlife

Use Sites

• Greenhouse & Ornamentals: Foliar disease control on vegetables, berries, herbs, houseplants, and ornamentals. Surface and equipment disinfection — glazing, pots, trays, benches, tools, watering systems, floors, walls, and storage areas.
• Hydroponics & Aquaponics: Controls waterborne pathogens including pythium and fusarium in hydroponic and aquaponic growing systems.
• Turf & Landscape: Controls powdery mildew, algae, and other diseases on turf, trees, and shrubs.

Browse more Fungicides or return to Pest & Disease Controls.