Syngenta Folio Gold Fungicide (Metalaxyl-M + Chlorothalonil)
The Ultimate "Double-Lock" Protection Against Late Blight and Downy Mildew.
Syngenta Folio Gold is a premium fungicide designed to save your crops from devastating diseases like Blight and Mildew. It uses a powerful combination of two active ingredients to provide both Systemic (Curative) and Contact (Preventive) action. Whether you are growing potatoes, tomatoes, or grapes, Folio Gold acts as an insurance policy, stopping disease on the leaf surface and cleaning it from inside the plant.
Best For: Farmers seeking reliable control during the monsoon season or high-disease pressure windows.
Why Choose This Product? Key Benefits
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Rapid Rainfastness: Becomes rainfast within just 1 hour of application, making it perfect for the rainy season.
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Dual-Action Defense: Provides a "Double-Lock" mechanism—it kills fungus on the outside (Contact) and destroys it from the inside (Systemic).
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Curative "Kick-Back" Power: Can stop infections even if applied 24–48 hours after the fungus attacks the plant.
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Resistance Management: The unique mix of two chemistries makes it very difficult for fungus to develop resistance compared to single-molecule fungicides.
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Pure Isomer Technology: Uses "Metalaxyl-M" (purified form), which is more potent and eco-friendly than older generic versions.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Folio Gold |
| Technical Name | Metalaxyl-M 3.3% + Chlorothalonil 33.1% SC |
| IRAC MoA Code | Group 4 (Phenylamide) + Group M5 (Chloronitrile) |
| Chemical Group | Acylalanine + Chloronitrile |
| Formulation | Suspension Concentrate (SC) |
| Toxicity Label | Blue / Yellow (Moderately to Highly Toxic) - Handle with care |
How It Works: Mode of Action
Folio Gold uses a smart two-pronged attack to control Oomycete pathogens:
- Internal Curative Action (Metalaxyl-M): This component is rapidly absorbed by leaves (within 30 minutes) and moves upwards through the plant. It stops the fungus from growing inside the tissue by blocking its protein production.
- External Shield (Chlorothalonil): This component stays on the leaf surface, forming a weather-resistant layer. It prevents fungal spores from germinating and penetrating the leaf.
- Resistance Breaking: By combining a multi-site contact fungicide with a site-specific systemic one, it prevents the fungus from adapting, keeping the product effective for longer.
This combination ensures that existing infections are halted (curative) and new spores are blocked (preventive).
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Potato | Late Blight (Phytophthora infestans), Early Blight |
| Tomato | Late Blight, Early Blight, Leaf Spots |
| Grapes & Cucurbits | Downy Mildew, Anthracnose |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Potato / Tomato | 300 - 400 ml | 200 Litres | 1.5 - 2.0 ml | 14 Days |
| Grapes | 600 - 800 ml | 300+ Litres | 2.0 - 2.5 ml | 14 Days |
| Cucurbits | 400 - 500 ml | 200 Litres | 2.0 ml | 14 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Start spraying preventively (25-35 days after planting) or immediately when you see the first signs of disease. Repeat every 10-14 days.
- Mixing: Always perform a "Jar Test" before mixing with other chemicals. Do not mix with highly alkaline products like Bordeaux Mixture.
- Coverage: Use at least 200 Liters of water per acre. The spray must cover the entire plant foliage thoroughly until it just begins to run off.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid inhalation of spray mist.
Frequently Asked Questions
1. What is the technical content of Folio Gold?
It contains Metalaxyl-M 3.3% and Chlorothalonil 33.1% SC.
2. Is Folio Gold curative or preventive?
It is both. The Metalaxyl-M cures existing infections inside the plant, while Chlorothalonil prevents new spores from attacking the outside.
3. How long does it take to become rainfast?
Folio Gold becomes rainfast in approximately 1 hour after application.
4. Can I mix Folio Gold with insecticides?
Yes, it is compatible with most common insecticides. However, avoid mixing with strong alkaline substances like Lime Sulfur.
5. What is the price per acre?
The approximate cost is around ₹800 per acre (based on a standard 400ml dose and 1-liter pack pricing), making it a cost-effective choice for high-value crops.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application. Warning: Toxic to aquatic life; do not spray near water bodies.

