Chemicalssyngentaquadris-ridomil-gold-sl

Quadris Ridomil Gold SL

Syngenta · Azoxystrobin · EPA Reg 100-1311 · Fungicide Document last checked 2026-05-30

About this product

Active ingredient Azoxystrobin
Manufacturer Syngenta
Category Fungicide

Full details for Quadris Ridomil Gold SL

Source product label ↗ Open the catalog source label while the local copy is reviewed. Verify the product name, EPA registration number, and revision before use. Source safety data sheet ↗ Open the catalog source SDS while the local copy is reviewed. Verify the exact product and revision before relying on it. EPA registration data Reg. 100-1311 — registry reference, signal word and status.

Applicator discussion

Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.

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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. 100-1311 →

Quadris Ridomil Gold SL is a broad-spectrum fungicide suspension concentrate used primarily in potatoes to control various soil-borne and foliar diseases. It contains two active ingredients: azoxystrobin (77.1%) and mefenoxam (22.9%). It is designed for in-furrow applications, where the product is applied in a water spray into the furrow just before seeding. This product is effective against a range of pathogens including Rhizoctonia solani, Phytophthora infestans, and various blights and rots. When using this product, technicians should be aware of rotational restrictions; for example, there is a 0-day planting time from the last application for certain crops like Brassica and carrots, while others require longer intervals. Handling requires specific Personal Protective Equipment (PPE), including chemical-resistant gloves of barrier laminate, butyl rubber, nitrile rubber, or neoprene rubber (all > 14 mils), long-sleeved shirts, long pants, and shoes plus socks. Users must avoid application during temperature inversions and high wind speeds to prevent drift. The label emphasizes that the product is phytotoxic to certain apple varieties if drift occurs. Always follow the specific use rates based on row spacing as detailed in the application tables to ensure efficacy and compliance with the Worker Protection Standard (WPS).

Pests covered (2)
Rhizoctonia canker, Phytophylum seedling blight, root rot, black dot, pink rot, leakDamping Off
Areas treatable (1)
Potato crops

How to treat each type of area 1

Potato crops

Target pest Location Rate Unit Dilution Label notes
Rhizoctonia canker, Phytophylum seedling blight, root rot, black dot, pink rot, leak Outdoor 0.82 fl oz/1000 ft of row 3-15 gallons of water per acre Apply as an in-furrow application; spray is directed into the furrow just before the seed is covered.

Mixing instructions 1

Label notes
Mix with clean water and agitate. Invert container to ensure thorough mixing. If combining with other products, allow 20 minutes for compatibility check.

Worker safety

PPE required Chemical-resistant gloves (barrier laminate, butyl rubber, nitrile rubber, or neoprene rubber > 14 mils), long-sleeved shirt, long pants, shoes plus socks.

Timing & weather

Use restrictions 4