Regalia PTO and ZeroTol 2.0 are a great tools to develop and maintain healthy turf. While ZeroTol rapidly oxidizes and kills bacteria, algae, fungi, and spores on contact, Regalia is the perfect complement, providing longer-term preventative residual protection. Both are environmentally friendly products, ZeroTol is EPA approved and Regalia is OMRI approved.
Regalia PTO Fungicide

New Regalia PTO prevents bacterial and fungal diseases on turf and ornamental shrubs and flowers and is applied on a 7-14 day schedule, depending on disease pressure. The active ingredient in Regalia PTO is derived from a plant extract of Reynoutria sachalihensis, which triggers turf's natural defenses systems to combat fungal and bacterial diseases. Independent research confirms that Regalia PTO provides economical control and improves turf quality.
Regalia PTO had a short re-entry interval of only 4 hours, so golfers and workers can get back on the course quickly. It is rainfast in 1 hour, so your fungicide sprays can get out even in tough weather.
ZeroTol 2.0 Broad Spectrum Algaecide/Fungicide

ZeroTol 2.0 is a non-toxic broad spectrum algaecide/fungicide that utilizes revolutionary peroxygen chemistry to rapidly oxidize and kill bacteria, algae, fungi, and spores on contact. ZeroTol is an EPA approved, environmentally friendly product that produces no noticeable residue or ordor. ZeroTol is mutation resistant because its rapid oxidation on surface contact with plants and materials helps stop the development of tolerant strains of fungi and bacteria.
Benefits of ZeroTol include:
- Zero Hour re-entry interval (REI)
- No phytotoxic side effects on turf
- Kills bacteria, algae, fungi, and spores on contact without damaging delicate plant tissue or flowers
- No mutational resistance
- Environmentally friendly (non-residual)
- Approved for tank mixing
- EPA approved (EPA# 70299-1)