How much to use and how often?

You'll want to dilute it down A LOT. A spray bottle that is ~800ml (regular sized bottle) only needs 8ml of zerotol to get the right concentration for cleaning plant trays. (1:100) this jug will last a long time

will this work on blackspot on roses?

Yes it should, be sure to spray early in the morning but if you don’t think it’s working, try The Amazing Dr. Zyhmes

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BioSafe Systems ZeroTol HC, Broad Spectrum Algaecide, Bactericide, and Fungicide, Peroxyacetic Acid, Kills Mold, Single 6200-1, 1 Gallon

BioSafe Systems ZeroTol HC, Broad Spectrum Algaecide, Bactericide, and Fungicide, Peroxyacetic Acid, Kills Mold, Single 6200-1, 1 Gallon

Product ID: 375353618

Details

Brand
BioSafe
Item Form
Spray
Item Weight
16 ounces
Liquid Volume
1
Target Species
Fungus

🌿OMRI-listed organic-safe formula

💧Residue-free, eco-friendly peroxyacetic acid

🧪Broad-spectrum fungicide & bactericide

R4667

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌱 Protect your plants, protect your planet—ZeroTol HC means clean, green growth!

ECO FRIENDLY SAFE - No copper or harsh chemicals—perfect for homes with kids, pets, and wildlife.
MULTI SURFACE SANITIZER - Cleans greenhouse tools, benches, and watering systems to prevent cross-contamination.
ROOT STEM STRENGTHENER - Promotes robust plant growth by improving overall health and disease resistance.
ON CONTACT PATHOGEN KILLER - Instantly neutralizes mold, mildew, and algae for healthier plants.
VERSATILE PLANT PROTECTION - Effective on ornamentals, vegetables, berries, and hydroponic systems alike.

BioSafe Systems ZeroTol HC is a powerful, broad-spectrum algaecide, bactericide, and fungicide formulated with peroxyacetic acid and hydrogen peroxide. OMRI-listed for organic use, it kills plant pathogens on contact without harsh chemicals or toxic residue. Ideal for home gardens, hydroponics, and greenhouse environments, it controls diseases like powdery mildew and Pythium while promoting stronger roots and stems. Its multi-surface application keeps tools and growing areas sanitized, reducing cross-contamination and supporting sustainable plant health.

Specifications

ASIN	B08XDPT2JR
Best Sellers Rank	#35,943 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #889 in Pest Repellents
Brand	BioSafe Systems
Brand Name	BioSafe Systems
Customer Reviews	4.4 out of 5 stars 109 Reviews
Included Components	fungicide
Item Form	Spray
Item Type Name	Fungicide
Item Weight	16 ounces
Liquid Volume	1
Manufacturer	BioSafe Systems
Model Number	SINGLE 6200-1
Part Number	SINGLE 6200-1
Target Species	Fungus
UPC	188716000931 810218060006 810075190045
Unit Count	128 Fluid Ounces

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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R4667

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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