Revus Fungicide
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Syngenta Revus Fungicide (Mandipropamid 23.4% SC)
The Ultimate Specialist for Downy Mildew and Late Blight Control.
Syngenta Revus® is a premium fungicide designed specifically to fight Oomycete diseases like Downy Mildew in grapes and Late Blight in potatoes and tomatoes. Powered by the advanced Mandipropamid molecule, it uses unique LOK + FLO™ technology to bond instantly to leaves and provide long-lasting protection, even during the rainy season.
Best For: Farmers seeking a rainfast solution for export-quality crops and effective resistance management against tough fungal strains.
Why Choose This Product? Key Benefits
- ⏱️Rapid Rainfastness (1 Hour): Thanks to "LOK" technology, it bonds to the leaf wax immediately. It does not wash off, even if it rains just one hour after spraying.
- ?️Dual-Side Protection: The "FLO" (Translaminar) action ensures the medicine moves through the leaf to kill hidden fungus on the underside (abaxial surface).
- ⏳Long-Lasting Residual Activity: Provides extended protection for 10 to 14 days, reducing the need for frequent sprays compared to older contact fungicides.
- ?️Monsoon Specialist: Specifically engineered to perform under high humidity and wet conditions where diseases like Late Blight thrive.
- ?Export Safety & Low Toxicity: Revus has a favorable safety profile with low toxicity to beneficial insects, making it ideal for Integrated Pest Management (IPM) and export crops.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Revus® Fungicide |
| Technical Name | Mandipropamid 23.4% SC |
| IRAC MoA Code | Group 40 (CAA Fungicide) |
| Chemical Group | Carboxylic Acid Amide (CAA) |
| Formulation | Suspension Concentrate (SC) |
| Toxicity Label | Blue/Green Triangle (Caution / Slightly Toxic) |
How It Works: Mode of Action
Revus uses a unique LOK + FLO™ mechanism to stop fungal infection before it starts. It targets the phospholipid biosynthesis of the fungus, destroying its cell wall formation.
- LOK (Adsorption): Upon spraying, the Mandipropamid molecule binds tightly to the waxy layer of the leaf. This makes it instantly weather-proof.
- FLO (Translaminar Movement): The active ingredient penetrates the leaf tissue and flows to the untreated side, killing spores hiding underneath.
- Inhibition: It prevents spore germination and stops mycelial growth, effectively creating a shield against disease entry.
Note: Revus acts primarily as a preventive shield. It works best when applied before the disease is visible.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Grapes | Downy Mildew (Plasmopara viticola) |
| Potato | Late Blight (Phytophthora infestans) |
| Tomato | Late Blight (Phytophthora infestans) |
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 | 160 - 200 ml | 200 - 400 L | 0.8 ml | 5 Days |
| Tomato | 160 - 200 ml | 200 L | 0.8 - 1.0 ml | 5 Days |
| Potato | 160 - 200 ml | 200 - 300 L | 0.8 - 1.0 ml | Check Label* |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. *Note: Potato PHI varies by region/regulation (often 3-14 days commercially, but CIBRC lists 40 days in some technical documents).
How to Apply: Best Practices
- Timing: Apply PREVENTIVELY (before disease symptoms appear). Start sprays at the vegetative stage or early flowering when weather conditions favor disease (cloudy, humid, rainy).
- Mixing: Fill the spray tank half with water, add the required amount of Revus SC, agitate well, and then fill the rest. Do NOT mix with highly alkaline substances like Bordeaux mixture.
- Coverage: Ensure uniform coverage. While translaminar action helps, good physical coverage ensures maximum "LOK" protection.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Is Revus Fungicide curative or preventive?
Revus is primarily a preventive fungicide. It is best used before the infection starts to build a shield. While it has limited curative (kick-back) action (1-2 days), relying on it for curing established disease is not recommended.
2. Is Revus systemic?
No, Revus is "Translaminar" or locally systemic. It moves from the top of the leaf to the bottom, but it does not travel up the stem to new leaves. New growth requires a fresh application.
3. How quickly is Revus rainfast?
Revus is highly rainfast. It locks into the leaf wax within 1 hour of drying. You do not need to re-spray if it rains an hour after application.
4. Can I mix Revus with other products?
Yes, Revus is compatible with many fungicides like Mancozeb and Chlorothalonil, and insecticides like Karate (Lambda-cyhalothrin). Avoid mixing with alkaline products like Lime Sulfur.
5. How does it compare to Ridomil Gold?
Ridomil is fully systemic and better for early curative action. Revus is translaminar and superior for rainfastness and preventive "locking." They are excellent partners in a rotation program to prevent resistance.
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.