Symatic Herbicide (Halosulfuron Methyl 75% WDG) – The Expert Solution for Purple Nutsedge
Eliminate stubborn Cyperus rotundus (Motha/Purple Nutsedge) from the roots with Coromandel's advanced systemic herbicide technology.
Coromandel International Ltd. brings you Symatic, a powerful herbicide specifically designed for Sugarcane, Maize, and Bottle Gourd. Unlike ordinary weed killers that only burn the leaves, Symatic penetrates the plant system to destroy the underground tubers, preventing regrowth.
⚠️ Important Note: Ensure you buy Symatic (Halosulfuron Methyl) for sedges. Do not confuse it with Symatic (Pinoxaden) used for wheat. Always check the chemical name before use.
Why Choose This Product? Key Benefits
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Stops Growth Instantly: Weeds stop competing with your crop for nutrients within 24-48 hours of application, even before they turn yellow.
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Complete Tuber Control: It is a systemic herbicide that moves down to the roots and nuts (tubers), killing the entire weed network to prevent it from sprouting again.
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Crop Safe Formula: Highly selective chemistry that targets sedges but remains completely safe for sensitive crops like Maize, Sugarcane, and Bottle Gourd.
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Advanced WDG Technology: Formulated as 75% Water Dispersible Granules, it dissolves easily without harmful solvents, making it safer for the operator and the environment.
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Residual Action: Provides long-duration control, keeping your field clean during the critical early growth stages of your crop.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Symatic |
| Technical Name | Halosulfuron Methyl 75% WDG |
| IRAC MoA Code | Group 2 (ALS Inhibitor) |
| Chemical Group | Sulfonylurea |
| Formulation | Water Dispersible Granules (WDG) |
| Manufacturer | Coromandel International Ltd. |
How It Works: Mode of Action
Symatic works by starving the weed of essential proteins required for life.
- Absorption: Upon spraying, the active ingredient is quickly absorbed through the leaves of the nutsedge.
- Translocation: It acts systematically, moving through the plant's phloem (food pipe) down to the underground tubers and rhizomes.
- Inhibition: It blocks the ALS enzyme, stopping the production of amino acids. This halts cell division, killing the "dead heart" of the weed and causing the tubers to rot.
Result: Growth stops in 1-2 days, yellowing appears in 3-7 days, and complete death occurs in 14-21 days.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Sugarcane | Cyperus rotundus (Purple Nutsedge/Motha) |
| Maize (Corn) | Cyperus rotundus, Cyperus iria |
| Bottle Gourd | Cyperus rotundus, Broadleaf Weeds |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Do not under-dose.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Sugarcane | 36 g | 150 - 200 L | ~0.20 - 0.24 g | Refer Label |
| Maize | 36 g | 150 - 200 L | ~0.20 - 0.24 g | Refer Label |
| Bottle Gourd | 36 g | 150 - 200 L | ~0.20 - 0.24 g | Refer Label |
*Use Flat Fan or Flood Jet nozzles for best coverage. PHI = Pre-Harvest Interval.
How to Apply: Best Practices
- Timing: Apply when weeds are actively growing at the 3-5 leaf stage (usually 20-35 days after planting). Do not spray if weeds are in full bloom or drought-stressed.
- Mixing: Dissolve the granules in a small mug of water first to create a solution, then add it to the main tank. Use clean water (avoid muddy water).
- Coverage: Ensure thorough wetting of the weed foliage. High water volume (150L+ per acre) is critical for success.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Clean sprayer immediately after use to protect future crops.
Frequently Asked Questions
1. Does Symatic kill the roots/tubers of the weed?
Yes. Symatic is a systemic herbicide. It travels down to the roots and tubers (nuts) of Cyperus rotundus, rotting them to prevent future regrowth.
2. Can I use this product on Wheat?
No. This version of Symatic (Halosulfuron) is for Sugarcane and Maize. There is a different "Symatic" containing Pinoxaden for Wheat. Ensure you check the label for "Halosulfuron Methyl" before buying.
3. Is it safe for Maize (Corn)?
Yes, when used at the recommended dosage of 36g/acre, it is highly selective and safe for Maize. It targets the weeds without harming the crop.
4. How long before rain is it rainfast?
For best results, there should be no rain for at least 4 hours after application.
5. What crops can I plant next season?
Wheat and Green Gram (Moong) are generally safe to plant in the following season. Avoid planting sensitive crops like Sunflowers immediately after harvest without a proper waiting period.
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. Coromandel International Ltd. owns the trademarks referenced.
