Sultaf Fungicide (Sulphur 80% WP) by Rallis | Broad Spectrum Disease & Mite Control
The ultimate dual-action solution: Protects crops from Fungus and Mites while boosting Sulphur nutrition.
Sultaf by Rallis India (a Tata Enterprise) is a trusted, contact fungicide containing 80% Sulphur. Unlike standard fungicides, Sultaf offers a double benefit: it effectively controls diseases like Powdery Mildew and acts as a powerful acaricide against mites.
Best For: Grapes, Mango, Apples, Chilli, Groundnut, and Vegetables suffering from Mildew, Rust, or Mite attacks.
Why Choose This Product? Key Benefits
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Dual Action Power: Functions as both a fungicide (kills fungus) and an acaricide (kills mites) in a single spray, saving you money.
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No Resistance Build-up: Uses a multi-site mode of action (Group M2), making it difficult for pests to develop resistance compared to modern systemic chemicals.
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Nutritional "Tonic" Effect: Supplies Sulphur—the "4th major nutrient"—essential for chlorophyll production, oil synthesis, and protein formation.
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Micronized Technology: Features ultra-fine particles (<10 microns) that suspend easily in water and provide superior surface coverage on leaves.
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Vapor Action: Releases sulphur vapors that reach hidden crevices and undersides of leaves where sprays often miss.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Sultaf (Rallis India Ltd) |
| Technical Name | Sulphur 80% WP |
| IRAC MoA Code | Group M2 (Multi-site Contact) |
| Chemical Group | Inorganic |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Blue/Green Triangle (Relatively Safe) |
How It Works: Mode of Action
Sultaf works through a triple-attack mechanism that leaves pests nowhere to hide.
- Contact Disruption: Lipophilic sulphur particles penetrate the fungal cell wall and disrupt the electron transport chain, effectively cutting off the fungus's energy supply (respiration).
- Secondary Toxicity: Inside the fungal cell, sulphur is reduced to Hydrogen Sulfide ($H_2S$), which is toxic to fungal proteins and enzymes.
- Vapor Phase (Fumigant): At ambient temperatures, Sultaf sublimates (turns to gas), creating a "vapor zone" that kills spores hiding in dense foliage or cracks.
Note: This multi-site action makes it an excellent tank-mix partner to prevent resistance to other chemicals.
Target Crops & Pests
[Image of powdery mildew on grape leaves]| Crop | Target Pest(s) |
|---|---|
| Fruit Crops (Grapes, Apple, Mango) | Powdery Mildew, Scab, Mites |
| Vegetables & Spices (Chilli, Peas, Okra, Cumin) | Powdery Mildew, Rust, Yellow/Red Mites |
| Field Crops (Groundnut, Tea, Pulses) | Tikka Leaf Spot, Rust, Red Spider Mite |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Ensure thorough coverage of the foliage.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (gm / Litre) | PHI (Days) |
|---|---|---|---|---|
| Grapes / Apple / Mango | 600 - 1000g | 300 - 400 L | 2.0 - 3.0g | 7 - 45* |
| Chilli / Vegetables | 600 - 800g | 200 L | 2.5 - 3.0g | 3 - 7 |
| Groundnut / Pulses | 750 - 1000g | 200 L | 2.5 - 3.0g | 3 - 7 |
*PHI = Pre-Harvest Interval. Note: For export quality Grapes, stop application 45 days before harvest to avoid residue issues.
How to Apply: Best Practices
- Timing: Apply during the coolest part of the day (early morning or late evening). Avoid spraying if temperatures exceed 30°C to prevent leaf burn.
- Mixing: Do NOT mix with oil-based formulations (EC) or apply within 14-21 days of an oil spray. This causes severe phytotoxicity.
- Coverage: Ensure full coverage of the foliage. For Powdery Mildew, the vapor action helps, but direct contact is best.
- Safety: Always wear PPE (gloves, mask, goggles) as sulphur dust can irritate eyes and skin. Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Sultaf kill mites?
Yes, Sultaf has significant acaricidal properties. It controls the mobile stages (larvae/adults) of Red Spider Mites and Yellow Mites effectively.
2. Can I mix Sultaf with other pesticides?
It is compatible with most neutral insecticides and fungicides like Mancozeb. However, NEVER mix it with oils, Bordeaux mixture, or highly alkaline products.
3. Why is there a temperature warning?
Sulphur sublimates (turns to gas) rapidly in heat. If sprayed when it is over 35°C, the concentrated vapor can burn the leaves (scald).
4. Can I use this on cucumbers or melons?
Use with extreme caution. Cucurbits are often "sulphur shy" and may suffer leaf burn. Test on a small area first or use lower dosages.
5. How does it help Groundnut crops?
Groundnut is an oilseed that requires high Sulphur. Sultaf controls Tikka Leaf Spot while simultaneously correcting sulphur deficiency, improving oil content and yield.
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.
