Syngenta Ridomil Gold is a dual-action systemic and contact fungicide containing Metalaxyl-M 4% + Mancozeb 64% WP/WG, widely used to control Oomycete fungal diseases like late blight and downy mildew.
Key Specifications & Information
- Active Ingredients: Metalaxyl-M 4% + Mancozeb 64%
- Mode of Action: Systemic (internal therapy via Metalaxyl-M) and Contact (surface shield via Mancozeb)
- Target Diseases: Downy mildew, late blight, damping-off, white rust, and leaf/fruit spots
- Common Crops: Potatoes, grapes, tomatoes, chillies, pomegranates, and vegetables
- Official Details: Learn more on the Syngenta Ridomil Gold Product Page.
Dosage & Application
- Foliar Spray: Typically 400–500 grams per acre (or about 1 to 1.5 grams per litre of water).
- Soil Drench: Used for nursery bed treatments against damping-off.
- Best Time: Spray during early morning or late evening; avoid midday heat or rain.




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