Cyfi Fungicide (Cyazofamid 6.2% + Mancozeb 60.8% WP)
The Ultimate "Tractor Brand" Solution for Late Blight & Downy Mildew
Cyfi is a premium, patented fungicide brought to you by Insecticides (India) Limited (IIL). It combines the specialized power of Cyazofamid with the broad-spectrum protection of Mancozeb. Designed specifically for high-value crops like Grapes, Potatoes, and Tomatoes, Cyfi offers a double-impact solution that stops disease spread instantly and provides a long-lasting protective shield.
Best For: Farmers facing tough fungal diseases (Oomycetes) that have developed resistance to older medicines.
Why Choose This Product? Key Benefits
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Instant Knock-Down: Starts working immediately to paralyze fungal spores and stop the disease from spreading further.
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Dual-Action Defense: Combines a "Systemic" inner cure with a "Contact" outer shield for complete crop safety.
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Resistance Breaker: Highly effective against stubborn diseases that no longer respond to ordinary fungicides like Metalaxyl.
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Rainfast Technology: Sticks firmly to the leaf surface and resists washing off, even during heavy monsoon rains.
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Green & Healthy Crops: Protects the leaves and fruits, resulting in higher biomass and better market quality.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Cyfi (Tractor Brand) |
| Technical Name | Cyazofamid 6.2% + Mancozeb 60.8% WP |
| IRAC MoA Code | Group 21 (QiI) + Group M03 (Multi-site) |
| Chemical Group | Cyanoimidazole + Dithiocarbamate |
| Formulation | WP (Wettable Powder) |
| Toxicity Label | Blue/Green (Refer to packet label) |
How It Works: Mode of Action
Cyfi uses a unique "Synergistic" approach to kill fungus at two different levels:
- Energy Blockade (Cyazofamid): It targets the mitochondria (the powerhouse) of the fungus. It cuts off the energy supply (ATP), causing the fungus to starve and paralyzing the swimming spores (zoospores).
- Multi-Site Shield (Mancozeb): It spreads across the leaf surface and destroys multiple parts of the fungal cell on contact, preventing new spores from germinating.
- Anti-Resistance Strategy: Because it attacks the fungus in two different ways, the disease cannot easily develop resistance to Cyfi.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Grapes | Downy Mildew (Plasmopara viticola) |
| Potato | Late Blight (Phytophthora infestans) |
| Tomato | Late Blight & Early Blight |
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) |
|---|---|---|---|---|
| Grapes | 500 - 600 g | 200 L | 2.5 - 3 g | 40-60 (Export)* |
| Potato | 500 - 600 g | 200 L | 2.5 - 3 g | 7 - 14 |
| Tomato | 500 - 600 g | 200 L | 2.5 - 3 g | 7 - 14 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. *Note: For Grapes intended for export, PHI may be up to 60 days due to Mancozeb regulations.
How to Apply: Best Practices
- Timing: Best used preventively (before disease starts) or immediately at the first sign of oil spots or blight lesions.
- Mixing: This is a Wettable Powder (WP). First, mix the required quantity in a small amount of water to make a smooth "slurry" (cream), then add this to the main tank.
- Coverage: Ensure full coverage of the foliage. The Mancozeb component needs to coat the leaves like paint to be effective.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not wash spray equipment in ponds or rivers (toxic to fish).
Frequently Asked Questions
1. Is Cyfi better than ordinary Mancozeb or Metalaxyl?
Yes. Cyfi contains Cyazofamid, a patented molecule that works on a different site (mitochondria) than older fungicides, making it effective even against resistant fungal strains.
2. Is Cyfi rainfast?
Yes. Cyfi is highly lipophilic (oil-loving), meaning it binds quickly to the waxy layer of the leaf and resists washing off during rain.
3. Can I use Cyfi for curing the disease?
Cyfi has excellent "kick-back" action to stop recent infections. However, for the best results, it should be applied preventively or at the very early stages of disease appearance.
4. What is the gap required between sprays?
The standard interval is 7-10 days. If disease pressure is very high or it is raining continuously, reduce the gap to 5-7 days.
5. Does it control Early Blight in Tomatoes?
Yes. While Cyazofamid targets Late Blight, the high concentration of Mancozeb (60.8%) in Cyfi effectively controls Early Blight (Alternaria) as well.
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.
