Sarthak Fungicide
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Sarthak Fungicide (Kresoxim-methyl 15% + Chlorothalonil 56% WG)
Advanced Dual-Action Protection for Potato and Chilli Crops
Sarthak Fungicide, brought to you by Rallis India (A Tata Enterprise), is a premium "new generation" solution designed to fight the toughest fungal diseases. By combining two powerful chemistries, it offers a double shield against crop-damaging threats like Late Blight in Potatoes and Fruit Rot in Chillies.
Unlike older fungicides, Sarthak doesn't just protect the surface; it penetrates the leaf to stop disease from the inside. Its unique "Greening Effect" keeps your plants healthy and green for longer, directly boosting your yield and produce quality.
Why Choose This Product? Key Benefits
- ⏱️Dual-Mode Power: Combines Contact and Systemic action. It kills fungus on the surface and hunts down hidden infections inside the leaf.
- ?️Prevents Resistance: The mix of two different chemicals ensures fungus cannot easily become immune to the spray, giving you long-term protection.
- ⏳Greening Effect (Yield Booster): Keeps leaves green and active for longer. This extended photosynthesis leads to bigger potatoes and higher-quality chillies.
- ?️Rainfast & Durable: Sticks firmly to leaves. It resists washing off during rain or irrigation, ensuring your money isn't wasted.
- ?Smart WG Formulation: Comes as dust-free granules that dissolve instantly in water. Safer for the farmer to handle and easier to measure.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Sarthak |
| Technical Name | Kresoxim-methyl 15% + Chlorothalonil 56% WG |
| IRAC MoA Code | Group 11 (Strobilurin) + Group M5 (Chloronitrile) |
| Chemical Group | Strobilurin + Chloronitrile |
| Formulation | WG (Water Dispersible Granules) |
| Toxicity Label | Blue/Yellow Triangle (Moderately Toxic) |
How It Works: Mode of Action
Sarthak uses a "Synergistic" approach, attacking the fungus from two angles simultaneously.
- Energy Blockade (Kresoxim-methyl): It enters the fungal cells and shuts down their mitochondria (power plants). Without energy, the fungus stops growing and cannot spread.
- Surface Shield (Chlorothalonil): It acts as a multi-site contact killer. It creates a protective layer on the leaf that burns fungal spores the moment they try to land and germinate.
- Stress Relief: Beyond killing fungus, it regulates the plant's ethylene production, delaying aging and keeping the crop green and productive for longer.
This combination provides both preventative (stops new disease) and early curative (stops existing disease) action.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Potato | Late Blight (Phytophthora infestans), Early Blight (Alternaria solani) |
| Chilli | Fruit Rot / Anthracnose (Colletotrichum spp.), Powdery Mildew, Leaf Spot |
| General Vegetables | Broad spectrum control against various leaf spots and blights. |
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 (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Potato | 300 g | 150 - 200 L | 2 g | 23 Days |
| Chilli | 300 g | 150 - 200 L | 2 g | 5 Days |
| Knapsack Sprayer | 30 g per tank | 15 L Tank | 2 g | - |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. Note that Potato requires a longer wait period (23 days).
How to Apply: Best Practices
- Timing: Apply primarily as a preventative spray (before disease appears) for best results. If spots are seen, spray immediately to stop spread. Repeat every 10-15 days.
- Mixing: Do not mix with highly alkaline products like Bordeaux Mixture or Sulphur, as this reduces effectiveness. It is compatible with common insecticides like Imidacloprid.
- Coverage: Ensure thorough coverage of the foliage. For Chillies, try to cover the underside of leaves where Powdery Mildew hides.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid spraying near fish ponds as it is toxic to aquatic life.
Frequently Asked Questions
1. What is the main advantage of Sarthak over Mancozeb?
While Mancozeb is only a contact fungicide, Sarthak offers dual action (Contact + Systemic). It penetrates the plant to cure hidden infections and provides a "greening effect" that boosts yield, which Mancozeb cannot do.
2. Can I use Sarthak during the fruiting stage of Chilli?
Yes, absolutely. It is highly effective against Fruit Rot (Anthracnose). The PHI for Chilli is only 5 days, so you can harvest 5 days after spraying.
3. Is Sarthak safe for potato export crops?
If exporting to the EU, check current regulations as Chlorothalonil is restricted there. For domestic Indian markets and other regions, it is fully approved and safe when used 23 days before harvest.
4. Does it help with crop yield?
Yes. The Kresoxim-methyl component delays plant aging (senescence). This allows the potato tubers to bulk up for an extra week or two, significantly increasing tonnage.
5. Is the granule formulation difficult to mix?
No. Sarthak comes as a high-quality WG (Water Dispersible Granule). It dissolves instantly in water without forming lumps or creating dangerous dust clouds.
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. Avoid use near aquaculture/water bodies.
